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Small Form-Factor Desktop, Small Desktop, and Small Mini-Tower Chassis - Removing and Replacing Parts: Dell OptiPlex GX150 Service Manual

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Small Form-Factor Desktop, Small Desktop, and Small Mini-Tower Systems — Removing and Replacing Parts: Dell™ OptiPlex™ GX150 Service Manual

Overview Hard Drives
Recommended Tools System Power Supply
Precautionary Measures Expansion-Card Cage (Small Desktop System)
Computer Cover Riser Board (Small Desktop and Small Mini-Tower Systems)
Key Components Expansion Cards
System Cables System Board Components
Control Panel and Badge Memory
Front-Panel Inserts (Small Desktop and Small Mini-Tower Systems) AGP Graphics Card/GPA (AIMM) Card
Front I/O Panel Microprocessor and Cooling Package
Chassis Intrusion Switch Voltage Regulator Module
Diskette Drives System Battery
Optical Drives System Board

Overview

This section provides procedures for removing and replacing the components, assemblies, and subassemblies in the Dell OptiPlex small form-factor desktop, small desktop, and small mini-tower chassis GX150 systems. Unless otherwise noted, each procedure assumes that the following conditions exist:


Recommended Tools

The GX150 chassis is primarily a tool-less one, but certain procedures (such as removing drive bracket rails and removing the control panel) require the use of one or more of the following tools:

  • Small flat-blade screwdriver

  • #1 and #2 Phillips-head screwdrivers

  • An 8-inch, #2 Phillips-head screwdriver

Also, Dell recommends that you use a wrist grounding strap as explained in "Precautionary Measures."


Precautionary Measures

NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. 

CAUTION: Follow the "Safety Instructions" in the Setup and Quick Reference Guide to help protect your computer from damage and to ensure your own personal safety.

Before you perform any procedure in this section, read the following caution for your personal safety and to prevent damage to the system from electrostatic discharge (ESD).

caution.gif (1120 bytes) CAUTION: FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

Before you start to work on the system, perform the following steps in the sequence listed:
  1. Perform an orderly computer shutdown using the operating system menu.

  2. Turn off the computer and all attached devices.

  3. Disconnect the computer and devices from their AC power sources. Also, disconnect any telephone or telecommunication lines from the computer. Doing so reduces the potential for personal injury or shock.

  4. If you are disconnecting a device from the computer or are removing a component from the system board, wait 15 to 30 seconds after disconnecting the computer from AC power before disconnecting the device or removing the component to avoid possible damage to the system board.

  5. Verify that the auxiliary power indicator on the system board is not on. If it is on, you may need to wait 15 to 30 seconds for it to go out (see "System Board Components" for the location of this indicator).

  6. Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the padlock ring on the back of the chassis. If a wrist grounding strap is not available, touch an unpainted metal surface on the back of the computer or on the computer chassis, such as the power supply, to discharge static charge from your body before touching anything inside the computer. While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate static electricity that might harm internal components.

In addition, take note of the following safety guideline when appropriate:

  • Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by it edges or by its metal mounting bracket. Hold a component such as a microprocessor by its edges, not by its pins.


Computer Cover

note.gif (1042 bytes) NOTE: On the small form-factor and small desktop systems, remove the stand before you open the computer cover. On the small mini-tower system, place the system on its side before you open the cover.

To open the computer cover, perform the following steps:

  1. Turn off your computer and peripherals, and observe the caution for your personal safety and protection of your equipment described in "Precautionary Measures."

  2. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.

  3. Open the computer cover as follows:

    NOTICE: Do not open the cover if the system is on the edge of a desk or table. Doing so may cause the system to tip over and fall. Make sure that the system is situated so that there is at least 12 inches of desk- or table-top for the cover to rest on.
    1. Press the two release buttons until the cover is free to swing up.

    2. Raise the back of the cover, and pivot it toward the front of the system.

Opening the Small Form-Factor Desktop Computer Cover

1 Security cable slot
2 Padlock ring
3 Release buttons (one on each side)
1 Release buttons (one on each side)
2 Padlock ring

Opening the Small Desktop Computer Cover

intern01.gif (12220 bytes)
1 Release buttons (one on each side)
2 Padlock ring

Opening the Small Mini-Tower Computer Cover

sk_open.gif (16748 bytes)
1 Release buttons (one on each side)
2 Padlock ring

 NOTICE: On the small mini-tower system, to prevent damage to the system board, open the cover until it catches at a 45-degree angle. Then remove the optical-drive data cable and/or the hard drive data cable from the system board and open the cover to a 90-degree angle.

Opening the Small Mini-Tower System to a 45-Degree Angle

Closing the Computer Cover

To close the computer cover, perform the following steps:

  1. Check all cable connections, especially those that might have come loose during your work. Fold cables out of the way so that they do not catch on the computer cover. Make sure cables are not routed over the drive cage—they will prevent the cover from closing properly.

  2. Check to see that no tools or extra parts (including screws) are left inside the computer's chassis.

  3. In the small mini-tower system, close the cover to a 45-degree angle and connect the optical-drive data cable and hard drive data cable to the system board. 

  4. Close the computer cover by pivoting the cover down toward the back of the chassis and into position. Make sure that the release buttons click into place.

  5. If you are using a padlock to secure your system, reinstall the padlock.
note.gif (1135 bytes) NOTE: After you open and close the cover, the chassis intrusion detector causes the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.

See "Resetting the Chassis Intrusion Detector" for instructions.

Key Components

note.gif (1135 bytes) NOTE: User service access points are color-coded green.

Inside the Small Form-Factor Desktop System

1 Hard drive
2 Diskette drive (supports slimline devices)
3 Optical drive (supports slimline devices)
4 Internal speaker
5 Chassis intrusion switch
6 Power supply release button
7 Power supply
8 AC power connector
9 I/O ports and connectors
10 Padlock ring
11 Microprocessor and heat sink
12 System board 

Inside the Small Desktop System

 inside.gif (24690 bytes)
1 Diskette drive
2 Hard drive
3 Internal speaker
4 Chassis intrusion switch
5 Expansion-card cage
6 Power supply
7 Expansion-card slots
8 AC power connector
9 Padlock ring
10 I/O ports and connectors
11 Microprocessor and heat sink
12 System board
13 Optical drive

Inside the Small Mini-Tower System

NOTICE: This view shows the optical-drive data cable removed.

 sk_insid.gif (28875 bytes)
1 Optical drive
2 Diskette drive
3 Hard drive
4 Internal speaker
5 Chassis intrusion switch
6 System board
7 Expansion-card slots
8 I/O ports and connectors
9 AC power connector
10 Power supply
11 Padlock ring
12 Microprocessor and heat-sink shroud

System Cables

Cabling in the Small Form-Factor Desktop System With Strip Cables

 
1 Optical-drive data cable
2 Diskette-drive data cable
3 Control-panel cable
4 Optical-drive power cable
5 IDE drive power cable (hard drive)
6 IDE data cable (hard drive)
7 Input/output cable
8 Input/output audio cable
9 Optical-drive audio cable

Cabling in the Small Form-Factor Desktop System With Combination Data Cables

 
1 Control panel cable
2 EIDE interface cable (hard drive)
3 Optical-drive power cable
4 Diskette-drive data cable
5 Optical-drive data cable
6 EIDE power cable (hard drive)
7 Front input/output cable
8 Front input/output audio cable
9 Optical-drive audio cable

Cabling in the Small Desktop System Without a Sound Card Installed

1 Optical-drive audio cable
2 Optical-drive data cable
3 Diskette-drive data cable
4 Control panel cable
5 Front input/output cable
6 Front input/output audio cable
7 EIDE interface cable (hard drive)     


Cabling in the Small Desktop System With a Sound Card Installed

cables02.gif (34360 bytes)
1 Optical-drive audio cable
2 Optical-drive data cable
3 Diskette-drive data cable
4 Control panel cable
5 Front input/output cable
6 Front input/output audio cable
7 EIDE interface cable (hard drive)

Cabling in the Small Mini-Tower System

1 Optical-drive power cable
2 Optical-drive audio cable
3 Optical-drive data cable
4 Diskette-drive data cable
5 Diskette-drive power cable
6 Hard-drive power cable 
7 Hard-drive data cable 
8 Front input/output cable
9 Front input/output audio cable

The following table provides a color code key for the cables inside the system.

Hard drive Blue
Diskette drive Black
Optical drive Orange
USB Gray
ATA, IDE, or EIDE drive Green
Control panel Yellow
CD audio Blue
System audio Black

Control Panel and Badge

Removing the Control Panel—Small Form-Factor Desktop System

 bbpwrpnl.gif (26245 bytes)
1 Control panel
  1. Face the front of the computer and grasp the right and left sides of the plastic computer cover. Dislodge the plastic cover from the metal chassis and pull the plastic out and away.

  2. Remove the piece covering the control panel.

  3. Remove the screw that holds the control panel to the chassis.

Removing the Badge—Small Form-Factor Desktop System

  1. Remove the plastic part of the computer cover (see step 1 in the previous procedure).

  2. From the inside of the front panel, push in on the two tabs on either side of the badge to release the badge.

  3. Press on the badge until it is freed.

Replacing the Control Panel and Badge—Small Form-Factor Desktop System

Replace the control panel and badge by following, in reverse order, the procedures in "Removing the Control Panel—Small Form-Factor Desktop System" and "Removing the Badge—Small Form-Factor Desktop System."

Removing the Control Panel—Small Desktop System

  1. Remove the front I/O panel.
ejpwrpnl.gif (12990 bytes)
  1. Using an 8-inch, #2 Phillips-head screwdriver, remove the screw holding the control panel to the chassis and pull the panel up and away from the chassis.

Removing the Badge—Small Desktop System

  1. Open the front USB door.

  2. From the inside of the door, push in on the two tabs on either side of the badge to release the badge.

  3. Press on the badge until it is freed.

Replacing the Control Panel—Small Desktop System

  1. Replace the control panel and secure it to the chassis by replacing the screw you removed in step 2.

  2. Replace the front I/O panel.

Replacing the Badge—Small Desktop System

Slightly tilt the replacement badge so that the lever fits through the slot on the front panel. Straighten the button and press it into place.

Removing the Control Panel and Badge—Small Mini-Tower System

  1. Lay the computer on its right side and open the cover.

  2. Remove the top and bottom panels of the computer by releasing the eight tabs on each panel. 

  3. Remove the front panel:
  1. Release the three tabs located on the front panel; one tab is located by the CD drive and two tabs are located by the I/O panel.

  2. Close the cover and remove the front panel.

NOTICE: This view of the small mini-tower system shows the optical-drive data cable removed.

 
1 Top panel
2 Bottom panel
3 Front-panel tabs (3)
4 Top-panel tabs (8)
  1. Remove the screw holding the control panel to the chassis, and pull the panel up and away from the chassis.
  1. Remove the badge by pressing in on the small lever that holds the badge to the front panel. Press on the badge until it is freed.

Replacing the Control Panel and Badge—Small Mini-Tower System

To replace the control panel and badge, follow the "Removing the Control Panel and Badge—Small Mini-Tower System" procedures in reverse, ensuring that the tabs on the top, bottom, and front panels are secure. 


Front-Panel Inserts (Small Desktop and Small Mini-Tower Systems)

Removing Front-Panel Inserts—Small Desktop System

  1. Facing the front of the computer, use your fingers to remove the front-panel cover.
inserts.gif (18769 bytes)
1 Optical drive front-panel cover
2 Diskette drive front-panel cover
  1. Press on the insert until it pops free of the front-panel cover.

 

sk_insrt.gif (19988 bytes)

Removing Front-Panel Inserts—Small Mini-Tower System

  1. Open the computer cover to a 45-degree angle and disconnect the optical-drive data cable.

  2. Open the cover to a 90-degree angle and release the insert tabs from inside the chassis.
  1. Press on the insert until it pops free of the front-panel cover.

Replacing Front-Panel Inserts

To replace a front-panel insert, follow the "Removing Front-Panel Inserts" procedures in reverse.


Front I/O Panel

Removing the Front I/O Panel—Small Form-Factor Desktop System

bbctrlpl.gif (28905 bytes)
  1. To access the screw that holds the front I/O panel to the chassis, remove the hard drive.

  2. Disconnect the control panel cable from the control panel connector on the I/O panel. Disconnect the front I/O cable from the connector on the system board (see "System Board Components" for the location of the front-panel connector and front I/O cable).

  3. Remove all cables that are connected to the front I/O panel.

  4. From inside the chassis cover, remove the mounting screw that secures the front I/O panel to the chassis.

  5. Remove the front I/O panel from the chassis.

Removing the Front I/O Panel—Small Desktop System

ctrlp_rm.gif (19711 bytes)
  1. Remove the hard-drive shroud. 

  2. Disconnect the hard-drive data cable.

  3. Disconnect the control panel cable from the control panel connector. Disconnect the I/O cable from the connector on the system board (see "System Board Components" for the location of the front-panel connector and I/O cable).

    Note the routing of the control panel cable as you remove it from the chassis so that you can replace it correctly.

  4. Remove all cables that are connected to the front I/O panel.

  5. From inside the chassis cover, remove the mounting screw that secures the front I/O panel to the chassis.

  6. Remove the front I/O panel from the chassis.

Removing the Front I/O Panel—Small Mini-Tower System

  1. Disconnect the control panel cable from the control panel connector. Disconnect the I/O cable from the connector on the system board (see "System Board Components" for the location of the front-panel connector and I/O panel).

    Note the routing of the control panel cable as you remove it from the chassis so that you can replace it correctly.

  2. Remove all cables that are connected to the front I/O panel.

  3. From inside the chassis cover, remove the mounting screw that secures the front I/O panel to the chassis.

  4. Remove the front I/O panel from the chassis.

Replacing the Front I/O Panel—Small Form-Factor Desktop, Small Desktop, and Small Mini-Tower Systems

To replace the front I/O panel, follow the "Removing the Front I/O Panel" procedures in reverse.


Chassis Intrusion Switch

Removing the Chassis Intrusion Switch—Small Form-Factor Desktop System

remintsw.gif (23024 bytes)

Removing the Chassis Intrusion Switch—Small Desktop System

iswch_rm.gif (17868 bytes)

Removing the Chassis Intrusion Switch—Small Mini-Tower System

  1. Disconnect the chassis intrusion switch cable connector from the control panel on the front of the chassis.

    Note the routing of the chassis intrusion cable as you remove it from the chassis. Chassis hooks may hold the cable in place inside the chassis.

  2. Slide the chassis intrusion switch out of its slot and remove the switch and its attached cable from the chassis.

Replacing the Chassis Intrusion Switch

To replace the chassis intrusion switch, follow the "Removing the Chassis Intrusion Switch" procedures in reverse order.

Resetting the Chassis Intrusion Detector

  1. Enter system setup by pressing <F2> during the system's POST.
note.gif (1135 bytes) NOTE: For instructions on using system setup, see the online System User's Guide.
  1. Under the System Security tab, reset the Chassis Intrusion option by pressing the left- or right-arrow key to select Reset. Change the setting to Enabled, Enabled-Silent, or Disabled.
note.gif (1135 bytes) NOTES: The default is Enabled-Silent.

If a setup password has been assigned by someone else, contact the network administrator for information on resetting the chassis intrusion detector.
  1. Press <Alt><B> to restart the system and implement your changes.

Diskette Drives

CAUTION: To avoid the possibility of electric shock, turn off the computer and any peripherals, disconnect them from electrical outlets, and then wait at least 5 seconds before you open the computer cover. Also, before you install a drive, read the steps in "Precautionary Measures."

Small Form-Factor Desktop System

Small Desktop System

Small Mini-Tower System

Removing the Diskette Drive—Small Form-Factor Desktop System

Select the appropriate instructions for the system:

Diskette Drive With the Strip Cable
Diskette Drive With the Combination Data Cable

Removing the Diskette Drive With the Strip Cable

  1. Disconnect the diskette-drive cable from the system board.

  2. Remove the power cable from the interposer board.

  3. Remove or raise the drive by pressing the green tabs on either side of the drive and lifting the drive up.

  4. Remove the diskette-drive cable from the diskette drive.

    1. Remove the interposer board from the diskette drive by pressing the tab and rotating the interposer board.

Removing the Interposer Board—Small Form-Factor Computer

1 Diskette-drive cable
2 Tab
3 Interposer board
4 System board diskette-drive connector (DSKT)
    1. To release the diskette-drive cable from the connector, slide the lever until it is fully extended, and then lift the cable away.

Removing the Diskette-Drive Cable

1 Diskette-drive cable
2 Lever
  1. Remove the diskette drive from its sled by pulling the sled tab out while pushing the drive up, and then sliding the drive out of the sled.

Removing the Diskette Drive—Small Form-Factor Computer

1 Sled tab
2 Sled

Removing the Diskette Drive With the Combination Data Cable

  1. Open the computer cover.

  2. Disconnect the combination data cable from the interface (IDE2) and diskette-drive data connectors on the system board.

Removing the Cables on the Diskette DriveSmall-Form Factor System

1 Power cable
2 Audio cable
3 Optical interposer board
4 ZIF lever
5 Combination data cable
6 System board diskette-drive connector
7 System board interface connector (IDE2)

 

  1. Disconnect the power cable and audio cable from the interposer board and then remove the interposer board from the optical drive. 

  2. Press inward on the two tabs on the sides of the diskette drive to disengage the drive from the chassis and then slide the drive upward and remove it from the chassis.

  3. Disconnect the diskette-drive data cable from the back of the drive by first releasing the ZIF lever.

    Once this lever is released, the cable is easily removed from the connector.

Removing the Diskette-Drive Data Cable

1 Diskette-drive data cable
2 ZIF lever
3 System board diskette-drive connector
  1. Remove the diskette drive from the sled by pulling the sled tab out while pushing the drive up, and then sliding the drive out of the sled.

Removing and Replacing the Sled

1 Sled tab
2 Sled

Replacing the Diskette Drive�Small Form-Factor Desktop System

Select the appropriate instructions for the system:

Diskette Drive With the Strip Cable
Diskette Drive With the Combination Data Cable

Replacing the Diskette Drive With the Strip Cable

  1. Snap the replacement drive into the sled and ensure that it is secure in the sled.

  2. Connect the interposer board to the diskette drive.

    1. Slide the diskette-drive cable into the connector.

    1. Close the lever so that the cable is secure in the connector.

    2. Line up the hole on the bottom of the interposer board with the notch on the connector, and snap the interposer board onto the drive.

  3. Gently slide the drive into the computer until the tabs securely click into position.
1 Connector notch
2 Interposer board alignment hole
3 Diskette-drive cable
4 Lever
  1. Attach the power cable to the interposer board on the diskette drive.

  2. Connect the strip cable to the DSKT connector on the system board.

  3. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.

  4. Close the computer cover, reconnect your computer and devices to their electrical outlets, and turn them on.

  5. Enter system setup and update the appropriate Diskette Drive A option to reflect the size and capacity of your new diskette drive.

  6. Verify that your computer works correctly by running the Dell Diagnostics.

Replacing the Diskette Drive With the Combination Data Cable

  1. Snap the replacement drive into the sled and ensure that it is secure in the sled.

  2. Attach the diskette-drive data cable to the back of the diskette drive by inserting the cable into the connector and then sliding the ZIF lever to lock the cable into place.

Attaching the Diskette-Drive Data CableSmall Form-Factor System

1 Diskette-drive data cable
2 ZIF lever
  1. Gently slide the drive into the chassis until the tabs securely click into position.

Replacing the Diskette DriveSmall Form-Factor System

1 Diskette-drive data cable
  1. Connect the interposer board to the optical drive and connect the power cable and audio cable.

Attaching CablesSmall Form-Factor System

1 Power cable
2 Audio cable
3 Interposer board
4 ZIF lever
5 Combination data cable
6 System board diskette-drive connector
7 System board interface connector (IDE2)
  1. Connect the combination data cable to the diskette and interface (IDE2) connectors on the system board.

  2. Close the computer cover.

Removing the Diskette Drive—Small Desktop and Small Mini-Tower Systems

  1. Open the computer cover.

  2. Disconnect the power cable and the diskette-drive data cable from the drive.

  3. Press inward on the two tabs on the sides of the drive bay to disengage the bracket from the chassis.

  4. Slide the bracket upward, and remove it from the chassis.

Removing the Diskette DriveSmall Desktop System

disket01.gif (7861 bytes)

Removing the Diskette DriveSmall Mini-Tower System

  1. If the replacement drive does not have the bracket rails attached, remove the rails from the old drive by removing the four screws that secure each rail to the drive.

  2. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and tightening all four screws.

Removing and Replacing the Drive Bracket Rails—Small Desktop and Small Mini-Tower Systems

disket10.gif (9797 bytes)
1 Drive
2 Bracket rails (2)
3 Screws (4)

Replacing the Diskette DriveSmall Desktop and Small Mini-Tower Systems

  1. Ensure that bracket rails are attached to the new drive.

  2. Gently slide the bracket into place until the tabs securely click into position.

  3. Attach the diskette-drive data cable to the back of the diskette drive.

  4. Connect the power cable to the power input connector on the drive.

  5. If the drive bay was previously empty, remove the front-panel insert from the front panel.

Attaching Cables to a Diskette DriveSmall Desktop System

dskdrcab.gif (13672 bytes)
1 Power cable
2 Diskette-drive data cable
3 Diskette-drive system board connector

Attaching Cables to a Diskette DriveSmall Mini-Tower System

sk_3cabl.gif (12789 bytes)
1 Power cable
2 Diskette-drive data cable
3 Diskette-drive system board connector
  1. Close the computer cover.

Optical Drives

Small Form-Factor Desktop System

Small Desktop System

Small Mini-Tower System

Removing the Optical DriveSmall Form-Factor Desktop System

Select the appropriate instructions for the system:

Optical Drive With the Strip Cable
Optical Drive With the Combination Data Cable

Removing the Optical Drive With the Strip Cable

  1. Remove the interposer board from the CD drive.

Removing the Interposer Board—Small Form-Factor System

1 Interposer board
  1. Press inward on the two tabs on the sides of the drive to disengage the drive from the computer.

Removing the Optical Drive With the Combination Data Cable

cd_rem.gif (8467 bytes)
  1. Open the computer cover.

  2. Remove the interposer board from the optical drive.

Removing CablesSmall Form-Factor Desktop System

1 Interposer board
2 Optical-drive interface connector
3 Combination data cable
4 System board diskette-drive connector
5 System board interface (IDE2) connector

 

  1. Press inward on the two tabs on the sides of the drive bay to disengage the drive from the chassis.

Replacing the Optical Drive�Small Form-Factor System

Select the appropriate instructions for the system:

Optical Drive With the Strip Cable
Optical Drive With the Combination Data Cable

Replacing the Optical Drive With the Strip Cable

  1. If you are replacing a drive that does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails, and then tightening all four screws (two screws for each rail).

  2. If you are installing a new drive, connect it to the set of rails that are attached to the inside of the cover.

If a set of rails is not attached to the inside of the cover, contact Dell.

CD Drive Bracket Rails

1 Drive
2 Bracket rails (2)
3 Screws (4)
  1. Gently slide the drive into place until the tabs securely click into position.

  2. Connect the interposer board to the CD drive, ensuring that the data, power, and audio cables are attached to the interposer board.

Connecting the Interposer Board—Small Form-Factor System

1 Interposer board

Replacing the Optical Drive With the Combination Data Cable

  1. Gently slide the drive into place until the tabs securely click into position.

  2. Connect the interposer board to the optical drive.

  3. Close the computer cover.

Attaching Cables to an Optical DriveSmall Form-Factor Desktop System

1 Interposer board
2 Optical-drive interface connector
3 Combination data cable
4 System board diskette-drive connector
5 System board interface (IDE2) connector

Removing the Optical DriveSmall Desktop System

disket02.gif (8126 bytes)

Removing the Optical DriveSmall Mini-Tower System

sk_cdrmv.gif (7908 bytes)

Removing and Replacing the Drive Bracket Rails—Small Desktop and Small Mini-Tower Systems

disket10.gif (9797 bytes)
1 Drive
2 Bracket rails (2)
3 Screws (4)

If you are replacing an optical drive and bracket assembly, follow these instructions. If you are installing a new drive that does not have bracket rails attached, connect it to the set of rails that is attached to the inside of the cover.

note.gif (1135 bytes) NOTE: If there are no screws with the bracket rails in the small mini-tower system, contact Dell. See the User's Guide for information on contacting Dell.
  1. Open the computer cover.

  2. Remove the optical-drive data cable from the optical drive.

  3. Remove the optical-drive power cable and audio cable from the optical drive.

  4. Press inward on the two tabs on the sides of the drive bay to disengage the bracket from the chassis.

  5. Slide the bracket upward and remove it from the chassis.

  6. If the replacement drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive.

  7. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and tightening all four screws.

Replacing the Optical Drive—Small Desktop and Small Mini-Tower Systems

  1. Reinstall the optical drive and bracket assembly in the chassis by gently sliding the drive into place until the tabs securely click into position.

  2. If you are installing a drive that has its own controller card, install the controller card in an expansion slot.

  3. Connect the optical-drive power cable and audio cable to the optical drive.

  4. Connect the optical-drive data cable to the optical drive.

If your system came with an EIDE CD drive, use the spare connector on the existing interface cable. Otherwise, use the EIDE interface cable provided in the drive kit.

Attaching Cables to an Optical DriveSmall Desktop System

1 Optical-drive data cable
2 Optical-drive interface connector
3 Power cable
4 Power connector
5 Audio connector
6 Audio cable

Attaching Cables to an Optical DriveSmall Mini-Tower System

sk_cdcab.gif (15065 bytes)
1 Power connector
2 Optical-drive data cable
3 Audio connector
4 System board interface connector (IDE2)


note.gif (515 bytes) NOTE: If you install a second optical device, do not route the cable through the plastic clips on the side of the diskette-drive bay.
  1. If the replacement drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive.

  2. Close the computer cover.

Hard Drives

Small Form-Factor Desktop System

Small Desktop System

Small Mini-Tower Chassis

Removing the Hard-Drive Shroud—Small Desktop System

shroud.gif (10506 bytes)
  1. Open the computer cover.

  2. Remove the plastic shroud covering the hard drive by pressing in on the indented tab at the top of the shroud and lifting the shroud away.

Removing the Hard Drive—Small Form-Factor Desktop System

hd_rem.gif (11055 bytes)

Removing the Hard Drive—Small Desktop System

hrdsk01.gif (12222 bytes)

Removing the Hard Drive—Small Mini-Tower System

sk_hdrmv.gif (7033 bytes)
  1. Disconnect the power and interface cables from the drive.

  2. For the small form-factor system, press in on the tabs on each side of the bracket, slide the drive toward the I/O panel, and remove the drive from the chassis. 

For the small desktop and small mini-tower systems, press in on the tabs on each side of the bracket, and slide it up and out.

  1. If your replacement hard drive does not have the bracket rails attached, remove the four screws holding the bracket rails to the hard drive.

Replacing the Hard Drive—Small Form-Factor Desktop, Small Desktop, and Small Mini-Tower Systems

NOTICE: To avoid possibly damaging the drive by ESD, ground yourself by touching an unpainted metal surface on the back of the chassis.

NOTICE: When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.

  1. If necessary, attach the bracket rails to the new hard drive by aligning the four screw holes of the drive and bracket and then inserting and tightening the screws that came with your upgrade kit.

  2. Reinstall the hard-drive bracket in the chassis by gently sliding the bracket into place until you hear it securely click.

  3. On the small desktop system, replace the hard-drive shroud.

  4. Connect a power cable to the power input connector on the back of the drive, and connect one of the device connectors on the EIDE cable to the 40-pin interface connector on the back of the hard drive.

  5. Check all connectors to be certain that they are properly cabled and firmly seated.

NOTICE: To avoid possible damage to the system, you must match the colored stripe on the EIDE interface cable with pin 1 on the drive's interface connector and with the EIDE interface connector (labeled IDE1) on the system board.

To locate EIDE connector 1 (IDE1) on the system board, see "System Board Components."

Attaching Hard-Drive Cables—Small Form-Factor Desktop System

hd_cble.gif (18168 bytes)
1 Drive power connector
2 Hard-drive power cable
3 Drive IDE1 connector
4 Hard-drive data cable
5 System board IDE1 connector

Attaching Hard-Drive Cables—Small Desktop System

1 Hard-drive power cable
2 Hard-drive data cable
3 IDE1 connector

Attaching Hard-Drive Cables—Small Mini-Tower System

sk_hdcab.gif (13631 bytes)
1 Hard-drive data cable
2 Hard-drive power cable
3 IDE1 connector
  1. Close the computer cover.

  2. If the drive you just installed is the primary drive, insert a bootable system diskette disk into the diskette drive.

  3. Turn on the computer.
  1. Enter system setup and update the appropriate Primary Drive option, 0 or 1.

    See the User's Guide for complete information on system setup.

  2. Reset the chassis intrusion detector.

  3. Restart the system.

  4. Partition and logically format the system's hard drive before proceeding to the next step.

For partition and format instructions, refer to the documentation that came with the operating system.

note.gif (1135 bytes) NOTE: On systems with hard drives larger than 2 GB, create a primary partition of 2 GB and divide the remaining capacity into partitions of 2 GB or less. For example, a system with a 2.5-GB hard drive would have a primary partition of 2 GB (drive C) and a second partition of 500 MB (drive D). Hard drives must be partitioned this way because MS-DOS�-based operating systems (including Microsoft� Windows NT�, when using a FAT16 file system) do not support drive partitions larger than 2 GB.
  1. Test the hard drive by running the Dell Diagnostics.

    See "Solving Problems" in the User's Guide for complete information.

  2. If the drive you just installed is the primary drive, install the operating system on the hard drive.

    For instructions, refer to the documentation that came with the operating system.

System Power Supply

Removing the Power Supply—Small Form-Factor Desktop System With a 160-Watt Power Supply

1 Release button
2 AC power connector

Removing the Power Supply—Small Form-Factor Desktop System With an 85-Watt Power Supply

pwr_rmv.gif (21623 bytes)
1 DC power cables
2 Push button
3 AC power connector

Removing the Power Supply—Small Desktop System

jzpwrrem.gif (31324 bytes)
1 DC power cables
2 AC power connector
3 Push button

Removing the Power Supply—Small Mini-Tower System

1 DC power cables
2 Push button
3 Screws (2)
4 AC power connector
  1. Disconnect the AC power cable from the back of the power supply.

  2. Disconnect the DC power cables from the system board and the drives.

    Note the routing of the DC power cables underneath the tabs in the chassis as you remove them from the system board and drives. It is important to route these cables properly when you replace them to prevent them from being pinched or crimped.

  3. On the small desktop system, remove the expansion-card cage, and remove the power cables from the side of the hard-drive cage. To remove the power cables, use the cables as leverage and pull away from the clips while simultaneously pulling on the metal clips with your finger.

On the small mini-tower chassis, remove the two screws that secure the power supply to the back of the chassis.

  1. Press the "PUSH" button located on the floor of the chassis.

  2. Slide the power supply toward the front of the system approximately 1 inch.

  3. Lift the power supply up and out of the chassis.

Replacing the Power Supply

  1. Slide the power supply into place.

  2. On the small mini-tower system, replace the two screws that secure the power supply to the back of the chassis.

  3. Reconnect the DC power cables.

  4. Connect the AC power cable to the connector.

  5. On the small desktop system, reattach the power cables to the side of the hard-drive cage.

    1. Run the cables underneath the metal clips.

    2. Press the clips to close them over the cables.

Expansion-Card Cage (Small Desktop System)

Removing the Expansion-Card Cage—Small Desktop System


caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."
  1. Examine any cables connected to expansion cards through the back-panel openings, and disconnect any cables that will not extend to where the cage must be placed when it is removed from the chassis.

  2. Remove any cables connected to the expansion card.

  3. Gently pull on the handle and lift the expansion-card cage up and away from the chassis.

Replacing the Expansion-Card Cage

  1. Align the expansion-card cage slots with the tabs in the chassis opening for the expansion-card cage. Slide the expansion-card cage into place.

  2. Make sure that the riser board is fully seated in the RISER connector on the system board.

  3. Reconnect any cables you removed in step 1 and 2 of the previous procedure.

Riser Board (Small Desktop and Small Mini-Tower Systems)

expcrd03.gif (8772 bytes)
1 PCI expansion-card connector 1 (PCI1)
2 PCI expansion-card connector 2 (PCI2)

Removing the PCI Riser Board on the Small Desktop System

NOTICE: To avoid damage to the expansion cards or the system board by ESD, ground yourself by touching an unpainted metal surface on the back of the computer.

caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."
  1. Remove the expansion-card cage.

  2. Remove the expansion cards installed in the slots.

  3. Remove the two screws that attach the riser board to the expansion-card cage.

Replacing the PCI Riser Board on the Small Desktop System

Follow the "Removing the PCI Riser Board" procedures in reverse order.

Removing the PCI Riser Board on the Small Mini-Tower System

NOTICE: To avoid damage to the expansion cards or the system board by ESD, ground yourself by touching an unpainted metal surface on the back of the computer.

caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."
  1. Remove all cables from the system board.

  2. Remove the system board metal tray assembly.

  3. Detach the riser board from the system board metal tray assembly.
NOTE: The metal tab on the PCI riser board may be engaged; release the tab before you remove the riser board. You do not need to engage this tab when you replace the riser board.


1 PCI riser board
2 System board
3 System board tab
4 Riser board tab

Replacing the PCI Riser Board on the Small Mini-Tower System

Follow the "Removing the PCI Riser Board" procedures in reverse order.


Expansion Cards

The small form-factor desktop system supports one expansion slot for a low-profile, 32-bit, 33-MHz PCI card. The small desktop system accommodates up to two 32-bit PCI expansion cards. The small mini-tower system supports up to four 32-bit PCI expansion cards.

note.gif (1135 bytes) NOTE: Before disconnecting a device from the system or removing a component from the system board, verify that the auxiliary power indicator LED on the system board is off. For the location of this LED, see "System Board Components."

32-Bit Low Profile Expansion Card

32-Bit Expansion Card

expcrd01.gif (3670 bytes)

Removing an Expansion Card

caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."
  1. If necessary, disconnect any cables connected to the card.

  2. In the small desktop system, remove the expansion-card cage.

  3. Raise the plastic lever that secures the card you want to remove.

  4. Grasp the card by its top corners, and ease it out of its connector.

  5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening.
note.gif (1042 bytes) NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the system. The brackets also keep dust and dirt out of your system.
  1. Close the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
note.gif (1042 bytes) NOTE: After you open and close the cover, the chassis intrusion detector causes the following message to appear on the screen at the next system start-up:

ALERT! Cover was previously removed.

  1. Reset the chassis intrusion detector by changing Chassis Intrusion to Enabled or Enabled-Silent.
NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

  1. If you removed a sound card, enter system setup, select Integrated Devices, and change the setting for Sound to On.

Replacing an Expansion Card—Small Form-Factor System

Replacing an Expansion Card—Small Desktop System

expcrd10.gif (23263 bytes)
1 Card-edge connector
2 Expansion card
3 Riser board
4 PCI expansion-card connector
5 Expansion-card cage

Replacing an Expansion Card—Small Mini-Tower Chassis


caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."


caution.gif (1120 bytes) CAUTION: Some network cards automatically start the system when they are connected. To guard against electrical shock, be sure to unplug the computer from its electrical outlet before installing any expansion cards.
  1. Prepare the expansion card for installation.

    See the documentation that came with the expansion card for information on configuring the card, making internal connections, or otherwise customizing it for your system.

  2. Raise the lever that covers the card-slot opening on the back of the chassis.

  3. If there is a filler bracket, remove the filler bracket by raising the hinged lever and sliding the bracket up.
  1. Place the expansion card on the connector and press down firmly. Make sure that the card is fully seated in the slot.

    If the expansion card is full-length, insert the end of the card into the expansion-card guide bracket as you lower the card toward its connector on the system board. Insert the card firmly into the expansion-card connector on the system board.

Expansion-Card Connection

1 Bracket within slot
2 Bracket caught outside of slot
3 Fully seated card
4 Not fully seated card
  1. Before lowering the retention arm, make sure of the following:
  • Tops of all expansion cards and filler brackets are flush with the alignment bar.

  • Notch in the top of the card or filler bracket fits around the alignment guide.
Press the arm into place, securing the expansion card(s) in the computer.

Retention Arm Closure

1 Filler bracket
2 Retention arm
3 Alignment bar
4 Alignment guide
  1. Connect any cables that should be attached to the card.

  2. In the small desktop system, replace the expansion-card cage.

  3. Close the computer cover, and reconnect the computer and devices to their electrical outlets and turn them on.
note.gif (1135 bytes) NOTE: After you open and close the cover, the chassis intrusion detector causes the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.

See "Resetting the Chassis Intrusion Detector" for instructions.

System Board Components

The subsections that follow contain procedures for removing system board components.

System Board Components

Front of Computer

sysboard.gif (28412 bytes)

Back of Computer

1 PC speaker
2 DC power connector
3 Diskette-drive connector
4 Battery
5 EIDE2 connector
6 Auxiliary power indicator
7 Memory module (DIMM) connectors (2)
8 Front-panel cable connector
9 EIDE1 connector
10 PCI 2 riser connector (not populated on the small form-factor system, used as the riser in the small desktop system, and can be populated with PCI expansion card in the small mini-tower system)
11 PCI 1 connector (not able to be populated on the small desktop system)
12 AGP/GPA connector
13 Video connector (upper) and audio connectors (lower)
14 CD audio and telephony connectors
15 NIC connector (upper) and USB connectors (2) (lower)
16 Keyboard (lower) and mouse (upper) connectors
17 Diagnostic LEDs
18 Voltage regulator module (may not be removable on some systems)
19 Parallel port (upper) and serial port (2) (lower) connectors
20 Microprocessor fan connector
21 Microprocessor and heat-sink assembly

System Board Jumper

The following figure shows the location of the PSWD jumper on the system board.

System Board Jumper

inside08.gif (8422 bytes)  

System Board Labels

The following table lists the labels for connectors and sockets on the system board and gives a brief description of their functions.

System Board Connectors and Sockets

Connector or Socket Description
AGP Accelerated Graphics Port (AGP) Pro connector
AUDIO Line-in, line-out, and microphone jacks
AUX_PWR Auxiliary power indicator
BATTERY Battery socket
CD-IN CD-ROM drive audio cable connector
DIAG_LED Diagnostic LEDs
DIMM_x DIMM socket
DSKT Diskette-drive interface connector
FAN Microprocessor fan connector
FRONTAUDIO Front-panel audio connector for onboard audio
FRONTPANEL Front-panel cable connector
IDEn EIDE interface connector
KYBD_MOUSE Keyboard and mouse connectors
MICROPROCESSOR Microprocessor connector
MODEM Telephony connector
MONITOR Video connector
NIC_USB Integrated NIC connector and USB connectors
PAR_SER1_SER2 Parallel and serial port connectors
PCI1 and 2 PCI expansion card connectors
POWER Main power input connector
PSWD Password jumper
VRISER Riser board connector
SPEAKER Internal speaker
VRM Voltage regulator module connector (may not be removable on some systems)

Memory

Removing DIMMs

memory02.gif (7925 bytes)
1 Securing clips (2)

 

caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."
  1. Press the securing clips outward simultaneously until the memory module disengages and pops out slightly from the socket.

  2. Lift the module away from the socket.

Replacing DIMMs

  1. Press the module fully into the socket while closing the securing clips to lock the module into place.
memory01.gif (19296 bytes)
1 Securing clips (2)
2 Slot
  1. Close the computer cover, reconnect your computer and peripherals to their electrical outlets, and turn them on.

    NOTE: After you open and close the cover, the chassis intrusion detector causes the following message to appear on the screen at the next system start-up:

    ALERT! Cover was previously removed.

    You will need to reset the chassis intrusion detector.

    The system detects that the new memory does not match the existing system configuration information and generates the following message:

    The amount of system memory has changed.
    Strike the F1 key to continue, F2 to run the setup utility

  1. Press <F2> to enter system setup, and check the value for System Memory.

    The system should have already changed the value of System Memory to reflect the newly installed memory. Verify the new total. If it is correct, skip to step 5.

  2. If the memory total is incorrect, turn off and disconnect your computer and peripherals from their electrical outlets. Open the computer cover, and check the installed DIMMs to make sure that they are seated properly in their sockets. Then repeat steps 2, 3, and 4.

  3. Reset the chassis intrusion detector by changing Chassis Intrusion to Enabled or Enabled-Silent.

  4. NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

  5. When the System Memory total is correct, press <Esc> to exit system setup.

  6. Run the Dell Diagnostics to verify that the DIMMs are operating properly.

AGP Graphics Card/GPA (AIMM) Card

Installing an AGP Card

NOTE: The small form-factor and small desktop systems support low-profile AGP cards.
  1. Remove the filler bracket by raising the hinged lever and sliding the bracket up.


Removing the AGP Slot Filler Bracket in the Small-Form Factor System

1 Hinged lever

Removing the AGP Slot Filler Bracket—Small Desktop System

agplever.gif (10217 bytes)

Removing the AGP Slot Filler Bracket—Small Mini-Tower System

  1. Insert the AGP card into the connector on the system board. Make sure that the card is securely fastened by the AGP card clip.

Installing an AGP Card

agp_ins.gif (22848 bytes)
1 Front end notch of AGP card
2 I/O panel AGP video connector
3 AGP card clip lever
  1. Press the AGP card clip lever toward the PCI slots.

  2. Slide the AGP card into place.

  3. Release the AGP card clip lever, ensuring that the tab on the AGP card clip lever fits into the notch on the front end of the AGP card.
  1. Secure the AGP card bracket by lowering the securing lever on the back panel.

Removing an AGP Card

  1. Raise the hinged lever on the back on the system.

  2. On the AGP card clip, press the lever toward the PCI slots.

  3. Pull the AGP card up out of the AGP card clip.

Installing a GPA (AIMM) Card

aimm_ins.gif (22201 bytes)
1 Front end of GPA card
2 Back end of GPA card
3 GPA connector
4 AGP card clip tab
5 AGP card clip
6 AGP card clip lever tab
7 AGP card clip lever
  1. Insert the card into the connector.

  2. Hook the back end of the card under the AGP card clip tab.

  3. Lower the front end of the card, and push the AGP card clip lever away so that the AGP card clip lever tab is out of the way.

  4. Insert the card firmly into the connector, and release the lever so that the tab is over the front end card bottom.

Removing a GPA (AIMM) Card

  1. Press on the AGP card clip lever so that the tab is not covering the card edge bottom.

  2. Lift the card's front end up, and slightly tilt it upward until the other card end is free from the AGP card clip tab.

Microprocessor and Cooling Package

Removing the Cooling-Fan/Heat-Sink Assembly and Microprocessor

caution.gif (1120 bytes) CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."
  1. Open the computer cover.
caution.gif (1120 bytes) CAUTION: The microprocessor and heat-sink assembly can get extremely hot. Be sure the assembly has had sufficient time to cool before you touch it.
  1. Disconnect the cooling fan power cable from the FAN1 connector on the system board.

  2. On the small mini-tower system, remove the airflow shroud as shown in the following illustration.
  3. 1 Anchor tabs (3)
  4. Remove the cooling-fan/heat-sink assembly.

Your system has one of two types of heat-sink clip—a green-tabbed clip or a toggle clip.

  • For systems with the green-tabbed clip, press down on the inside edge of the green tab as shown in the following illustration. Remove the clip from the socket, and then remove the heat sink from the microprocessor.

    1 Clip
    2 Green tab
  • For systems with the toggle clip, remove the DIMM closest to the microprocessor heat-sink assembly. Pull down on the toggle clip lever until you can unhook the ends of the clip from the tabs on each side of the ZIF socket. Remove the clip from the socket, and then lift the heat sink from the microprocessor.
    1 Heat sink
    2 Toggle clip lever
    3 ZIF socket tabs (2)
  1. Remove the microprocessor chip from the socket.

NOTICE: Be careful not to bend any of the pins when you remove the microprocessor package from the ZIF socket. Bending the package pins can permanently damage the microprocessor.

The ZIF socket has a lever-type handle that secures and releases the microprocessor package from the ZIF socket.

  1. Pull the socket release lever straight up until the microprocessor package releases.

  2. Remove the microprocessor package from the socket.

Leave the release lever extended so that the socket is ready for the new microprocessor package.

Removing the Microprocessor

proces02.gif (10324 bytes)
1 Microprocessor chip
2 Socket release lever
3 ZIF socket

Replacing the Microprocessor Package and Cooling-Fan/Heat-Sink Assembly

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.

NOTICE: If you are replacing the microprocessor, do not reuse the old heat sink. Doing so can cause the microprocessor to overheat because of an inadequate amount of thermal compound between the heat-sink assembly and the microprocessor package.

NOTICE: You must position the microprocessor package correctly in the ZIF socket to avoid permanent damage to the microprocessor and the computer when you turn on the system.

  1. Install the microprocessor package in the ZIF socket.

    1. If the release lever on the ZIF socket is not all the way out, move it to that position now.

    2. Align pin-1 (the beveled corner) of the microprocessor package and pin-1 of the ZIF socket.

Installing the Microprocessor Chip

proces03.gif (10059 bytes)
1 Pin-1 corners of chip and socket aligned
  1. Set the microprocessor package lightly in the socket, making sure that all the pins are headed into the correct holes.

    Because the system uses a ZIF socket, there is no need to use force (which could bend the pins if the microprocessor package is misaligned).

  2. When the microprocessor package is positioned correctly, press it with minimal pressure to fully seat it in the ZIF socket.

  3. When the microprocessor package is fully seated, pivot the release lever back toward the system board until it snaps into place, securing the microprocessor package.
  1. Replace the cooling-fan/heat-sink assembly.
  1. If you are installing a new cooling-fan/heat-sink assembly, remove the plastic cover that is attached to the bottom of the new cooling fan/heat-sink assembly.

  2. Place the cooling-fan/heat-sink assembly on top of the microprocessor package.

  3. Orient the securing clip so that the tab is facing the memory modules, and hook both ends of the securing clip over the ZIF socket tabs.

  4. If your system has the toggle clip, rotate the lever upward until it snaps into place. Then replace the DIMM you removed earlier.
NOTE: If you are installing a microprocessor replacement kit from Dell, return the original heat-sink assembly and microprocessor package to Dell in the same package in which your replacement kit was sent. Your microprocessor replacement kit should include a replacement microprocessor heat sink.
  1. If you have a mini-tower system, replace the airflow shroud.

  2. Reconnect the cooling fan power cable to the FAN1 connector on the system board.

Checking System Functions

As the system boots, it detects the presence of the new microprocessor and automatically changes the system configuration information in system setup.

note.gif (1135 bytes) NOTE: After you open and close the cover, the chassis intrusion detector causes the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.
  1. Enter system setup and confirm that the system data area correctly identifies the type of installed microprocessor.
note.gif (1135 bytes) NOTE: For instructions on using system setup, see the online System User's Guide
  1. While in system setup, reset the Chassis Intrusion option by pressing the left- or right-arrow key to select Reset and then choosing Enabled, Enabled-Silent, or Disabled.
note.gif (1135 bytes) NOTE: If a setup password has been assigned by someone else, contact the network administrator for information on resetting the chassis intrusion detector.
  1. Run the Dell Diagnostics to verify that the new processor is operating correctly.

Voltage Regulator Module

Earlier GX150 systems contain a removable voltage regulator module (VRM). If your microprocessor upgrade kit comes with a VRM, perform the following steps:

note.gif (1135 bytes) NOTE: The VRM cannot be removed on some systems.

NOTICE: If you use a flat-head screwdriver to press on the levers, be very careful to not let the screwdriver slip and damage system board components.

  1. To remove the VRM, press on the levers of the VRM connector until the module is released and pops up. Since there is not much room between the microprocessor heat sink and the VRM, you may have to use a flat-head screwdriver to press on the levers.

Removing the VRM

1 VRM
2 VRM connector
3 Levers (2)
  1. Install the VRM by inserting it into the connector until you hear the module snap into place.

System Battery

Removing the System Battery

batt_rmv.gif (7679 bytes)
1 Battery
2 Socket


caution.gif (1120 bytes) CAUTION: There is a danger of the new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions.
  1. If possible, enter system setup and print the system setup screens.

  2. Remove the system battery by carefully prying it out of its socket with your fingers or with a blunt, nonconducting object such as a plastic screwdriver.

Replacing the System Battery

  1. Orient the new battery with the "+" facing up.

  2. Insert the battery into its socket and snap it into place.

System Board

Removing the System Board—Small Form-Factor Desktop, Small Desktop, and Small Mini-Tower Systems

remsysbd.gif (12921 bytes)
1 System board and metal tray assembly
2 Tab


caution.gif (1120 bytes) CAUTION: Before you remove any component from the system board, read the steps in "Precautionary Measures."


note.gif (1135 bytes) NOTE: The system board and the metal tray are attached and are removed as one piece.
  1. Remove or move any components that restrict access to the system board.
     
  2. Disconnect all cables from the system board.

    Before you remove the existing system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part.
note.gif (1135 bytes) NOTE: The small mini-tower system has a tab on the riser board. Release the tab before you remove the system board.
  1. Pull up on the tab and slide the system board toward the front of the chassis; lift it up and away.

  2. Place the system board that you just removed next to the replacement system board.

Replacing the System Board

  1. Transfer components from the existing system board to the replacement system board.

    1. Remove the memory modules and install them on the replacement board.

    caution.gif (1120 bytes) CAUTION: The microprocessor package and heat-sink assembly can get hot. To avoid burns, be sure that the package and assembly have had sufficient time to cool before you touch them.


    1. Remove the fan/heat-sink assembly and microprocessor package from the existing system board and transfer it to the replacement system board.

    2. For the small mini-tower replace the riser board

  1. Configure the settings of the replacement system board.

    Set the jumper on the replacement system board so it is identical to the one on the existing board.
note.gif (1135 bytes) NOTE: Some components and connectors on the replacement system board may be in different locations than the corresponding connectors on the existing system board.
  1. Orient the replacement board by aligning the notches on the bottom to the tabs on the chassis floor.

  2. Slide the board toward the back of the chassis until it clicks into place.

  3. Replace any components and cables that you removed from the system board.

  4. Reconnect all cables to their connectors at the back of the computer, close the computer cover, and reconnect the computer and devices to their power sources and turn them on.
note.gif (1135 bytes) NOTE: After you close the cover, the chassis intrusion detector causes the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.
  1. Reset the chassis intrusion detector.

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