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Checking Inside the Computer: Dell PowerEdge 6300 Installation and Troubleshooting Guide

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Checking Inside the Computer: Dell™ PowerEdge™ 6300 Installation and Troubleshooting Guide

Safety First-For You and Your Computer Troubleshooting the Battery
Computer Orientation Troubleshooting Power Supply Problems
Removing and Replacing the Computer Cover Troubleshooting a Cooling Fan
Troubleshooting Expansion Cards Troubleshooting the Video Subsystem
Troubleshooting System Memory Troubleshooting the System Board
Accessing the Interior of Your System Troubleshooting the Diskette Drive Subsystem
Inside the Chassis Troubleshooting a SCSI Tape Drive
Responding to a Dell OpenManage HIP Alert Message Troubleshooting SCSI Hard-Disk Drives
Troubleshooting a Wet Computer
Troubleshooting a Damaged Computer

This section provides troubleshooting procedures for components inside the computer. Before you start any of the procedures in this section, do the following:

You need the following items to perform the procedures in this section:

  • The Dell Server Assistant CD and a blank, formatted 3.5-inch diskette
  • The Dell PowerEdge 6300 Systems User's Guide
  • The key to the system keylocks
NOTE: When you see the question, "Is the problem resolved?" in a troubleshooting procedure, perform the operation that caused the problem.

Safety First--For You and Your Computer

The procedures in this guide require that you remove the cover and work inside the computer. While working inside the computer, do not attempt to service the computer except as explained in this guide and elsewhere in Dell documentation. Always follow the instructions closely.

Working inside the computer is safe--if you observe the following precautions.

WARNING: The power supplies in this computer system produce high voltages and energy hazards, which can cause bodily harm. Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer.
WARNING: This system may have more than one power supply cable. To reduce the risk of electrical shock, a trained service technician must disconnect all power supply cables before servicing the system.

WARNING FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

Before starting to work on the computer, perform the following steps in the sequence listed:

1. Turn off the computer and all peripherals.

2. Disconnect the computer, peripherals, and power supplies 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.

3. Touch an unpainted metal surface on the computer chassis, such as the power supply, before touching anything inside the computer.

4. While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components.

5. Never place conductive objects such as tools, metal pens, or screws on the system board.

In addition, Dell recommends that you periodically review the safety instructions at the front of this guide.


Computer Orientation

When following the procedures in this guide, assume that the locations or directions relative to the computer are as shown in Figure 1.

Figure 1. Computer Orientation

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Removing and Replacing the Computer Cover

The computer is enclosed by a front bezel and a cover. To troubleshoot problems inside the computer, you may need to remove the cover to allow access to the system board, small computer system interface ( SCSI ) backplane board, and external SCSI devices.

Using the Computer Cover Keylock

The computer cover provides a three-position keylock that allows the following access options to the system's interior:

  • The latch position (denoted by the square icon) allows access to the PCI compartment through the PCI access door.
  • The unlocked position (denoted by the open lock icon) enables the computer cover to be removed.
  • The locked position (denoted by the lock icon) locks both the computer cover and the PCI access door.

When the system is unlocked, the latch and unlocked positions can be accessed without the key.

Removing the Computer Cover

Use the following procedure to remove the computer cover:

1. Observe the precautions in Safety First--For You and Your Computer. Also observe the safety instructions at the front of this guide.

2. Turn the keylock on the back edge of the cover to the unlocked position (designated by the open lock icon).

If necessary, unlock the keylock using the system key (see Figure 2).

3. Slide the cover a half-inch (about a centimeter) or so toward the back of the computer, and grasp the top of the cover at both ends.

4. Lift the cover away from the chassis.

Figure 2. Removing the Computer Cover

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Replacing the Computer Cover

Use the following procedure to replace the computer cover:

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.

CAUTION: Make sure that there are no cables or cable connectors lying on the top diskette drive in the upper drive cage. Foreign objects on top of the drive can interfere with drive operation and permanently damage the drive.

2. Check that no tools or parts (including screws) are left inside the computer.

3. Make sure the keylock on the cover is in the unlocked position.

4. Fit the cover over the side rail at the bottom of the chassis, and slide it closed.

5. Secure the cover with the keylock.

6. Set the keylock to the locked position.

Removing the Front Bezel

Use the following procedure to remove the front bezel of the computer:

1. Remove the computer cover.

See Removing the Computer Cover.

2. Gently pry the four tabs along the right edge of the bezel loose with your finger tips, and disengage the three clips on the opposite edge from the chassis (see Figure 3).

3. Rotate the bezel to the left to disengage and remove.

Figure 3. Removing the Front Bezel

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Replacing the Front Bezel

Use the following procedure to replace the front bezel of the computer:

1. Align the three clips on the edge of the bezel and press the bezel into place until the tabs on the opposite edge of the bezel snap into place.

2. Reinstall the computer cover.

See Replacing the Computer Cover.


Accessing the Interior of Your System

Accessing the interior of your system requires disassembly of various components, depending on the task that you need to perform. The following sections describe how to disassemble system components to access the PCI expansion cards, microprocessors or memory module, system board, SCSI backplane board, and power supply paralleling board.

Accessing the PCI Expansion Cards

The PowerEdge 6300 system provides an access door to the PCI expansion card compartment (see Figure 4) for easy installation and removal of the expansion cards. To open the access door, the keylock must be in the latch position (designated by the square icon) or the unlocked position (designated by the open lock icon).

Figure 4. Accessing the PCI Expansion Cards

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Accessing the Microprocessors, Memory Module, or System Board

To access the microprocessors or the memory module inside the system, you must remove the interior support panel (see Figure 5). To remove the support panel, turn the thumbscrews on the left side of the panel, rotate the panel outward slightly, lift the hinge side of the panel to clear the tabs from the hinge slots, and remove the panel.

To access the system board, you must remove all expansion cards in addition to the support panel. For instructions on removing the expansion cards, see Removing an Expansion Card.

Figure 5. Removing the Support Panel

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Accessing the SCSI Backplane Board and Power Supply Paralleling Board

To access the backplane board or the power supply paralleling board, you must open the system board tray to the service position (see Figure 6). To open the system board tray, release the tray latch at the back lower corner of the tray and pull the tray open to the first slide position. To remove the tray completely, pull the tray slightly outward (or upward if the system is mounted horizontally) to clear the slide catch and then pull the tray out of the chassis.

Figure 6. Opening the System Board Tray

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Inside the Chassis

In Figure 7, the cover on the right side of the computer is removed to provide an interior view. Figure 7 also identifies the drive bays. Refer to th is illustration to locate interior features and components discussed later in this guide.

The system board--the large, vertical, printed circuit board at the left side of the chassis--holds the computer's control circuitry and other electronic components. Some hardware options are installed directly on the system board. The external drive bays provide space for up to three half-height 5.25-inch drives, typically CD-ROM drives or tape drives. The diskette drive bay holds a 3.5-inch diskette drive. The hard-disk drive bays provide space for up to six 1.6-inch or 1-inch SCSI hard-disk drives. These hard-disk drives are connected to a SCSI host adapter on the system board or on an expansion card via the SCSI backplane board.

When you look inside the computer, note the DC power cables leading from the power supply paralleling board. The power cables supply power to the system board, SCSI backplane board, externally accessible drives, and any expansion cards that connect to external peripherals.

The wide ribbon cables are the interface cables for internal drives. For non-SCSI drives such as the diskette drive, an interface cable connects each drive to an interface connector on the system board or on an expansion card. For SCSI devices, interface cables connect externally accessible SCSI devices and the SCSI backplane board to a SCSI host adapter either on the system board or on an expansion card. (For more information, see Installing Drives in the External Bays and  Installing Hard-Disk Drives.)

During an installation or troubleshooting procedure, you may be required to change a jumper or switch setting. For information on the system board jumpers, see Jumpers and Switches.

Figure 7. Inside the System (Right-Side View)

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Responding to a Dell OpenManage HIP Alert Message

The Dell OpenManage Hardware Instrumentation Package (HIP) server management application monitors critical system voltages and temperatures, the system cooling fans, and the status of the SCSI hard-disk drives in the computer. The application generates alert messages that appear in the simple network management protocol (SNMP) trap log file. See Messages and Codes, for a listing of these alert messages. (More information about the Alert Log window and options is provided in the Dell OpenManage HIP online help and the HP OpenView NNM SE 1.2 With Dell OpenManage HIP 3.2 User's Guide.)


Troubleshooting a Wet Computer

Liquid spills, splashes, and excessive humidity can cause damage to the system. If an external device (such as a printer or an external drive) gets wet, contact the device manufacturer for instructions. If the computer gets wet, complete the following steps:

1. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

2. Let the computer dry for at least 24 hours.

Make sure that it is thoroughly dry before proceeding.

3. Remove all expansion cards installed in the computer.

See Removing an Expansion Card.

4. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

Does the system have power?

Yes. Go to step 5.

No. See  Getting Help,  for instructions on obtaining technical assistance.

5. Turn off the system, disconnect it from the AC power source, remove the computer cover, and reinstall all expansion cards you removed in step 3.

See Removing an Expansion Card.

6. Replace the computer cover, and reconnect the system to the AC power source.

7. Run the System Set Test Group in the Dell Diagnostics.

See Running the Dell Diagnostics.

Do the tests complete successfully?

Yes. The system is operating properly.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting a Damaged Computer

If the computer was dropped or damaged while being moved, you should check the computer to see if it functions properly. If an external device attached to the computer is dropped or damaged, contact the manufacturer of the device for instructions or see Getting Help, for information on obtaining technical assistance from Dell. Follow these steps to troubleshoot a damaged computer:

1. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

2. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

3. Check all the board and card connections in the computer.

Check the following connections:

  • Expansion-card connections to the system board
  • Drive carrier connections to the SCSI backplane board
  1. Verify all internal cable and component connections.
    Make sure that all cables are properly connected and that all components are properly seated in their connectors and sockets.
  2. Replace the computer cover and reconnect the system to the AC power source.

6. Run the System Set Test Group in the Dell Diagnostics.

See Running the Dell Diagnostics.

Do the tests complete successfully?

Yes. The system is operating properly.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting the Battery

If an error message indicates a problem with the battery, or if the System Setup program loses the system configuration information when the computer is turned off, the battery may be defective.

Follow these steps to troubleshoot the battery:

1. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

2. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge

3. If an expansion card blocks your access to the battery, remove the expansion card.

See Removing an Expansion Card for instructions.

4. Check the connection of the coin cell battery to the system board.

Is the battery firmly installed in the battery socket on the system board?

Yes. Go to step 6.

No. Go to step 5.

5. Reseat the battery in its socket.

Is the problem resolved?

Yes. The battery was loose. You have fixed the problem.

No. Go to step 6.

6. Replace the battery.

See Replacing the Battery for instructions on replacing the battery.

WARNING: There is a danger of a 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.

Is the problem resolved?

Yes. The battery's charge was low. You have fixed the problem.

No. See Getting Help, for instructions on obtaining technical assistance.

7. Reinstall the expansion cards removed in step 3, if applicable.

8. Replace the system cover, and reconnect the system to the AC power source.


Troubleshooting Power Supply Problems

The redundant power supplies in Dell PowerEdge 6300 systems are controlled by the power supply paralleling board. The two indicators on the back of the power supply (see Figure 8) signal the status of each power supply. If the red power-supply fault indicator lights up, the power supply should be replaced.

Figure 8. Power Supply Features

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Replacing a Power Supply

Follow these steps to replace a power supply:

1. Disconnect the AC power cable from the power outlet, and then disconnect the other end of the cable from the power supply.

2. Remove the AC power cable from the cable strain-relief clips.

3. Remove the power supply (see Figure 9):

  1. Push in on the power supply handle and slide the handle to the left (or upward if mounted in the horizontal position) to release it.
  2. Rotate the handle outward and then slide the power supply out of the chassis.

Figure 9. Removing the Power Supply

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4. Slide the new power supply into the chassis to the point where the power supply initially stops.

The outer edge of the power supply should be flush with the chassis.

NOTE: Do not use excessive force when sliding the power supply into the chassis.

5. Using both hands, slide the power supply handle to the left (or up if the chassis is mounted horizontally) so that the two ends of the handle engage into the slots in the chassis, and then rotate the power supply handle to the closed position.

The handle acts as a lever to push the power supply into the proper position inside the chassis.

6. Slide the handle to the right (or down if the chassis is mounted horizontally) so that the latch engages into the slot in the chassis.

NOTE: The power supply will not function until the latch is engaged.

7. Connect the AC power cable to the power supply and route the cable through the strain-relief clips on the power supply handle.

8. Connect the AC power cable to the power outlet.

Troubleshooting Power Cable Connections

1. Check the AC power outlet and power cable (see Checking Connections and Switches).

2. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources.

3. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

4. Check the power cable connections to connectors POWER1, POWER2, and POWER3 on the system board .

See Figure 1 for the location of these connectors.

5. Check the cable connections on the power supply paralleling board (see Table 1).

Table 1. Power Cable Connectors on the Power Supply Paralleling Board

 

Connector

Cable Connection

PS1.PB1 and

PS1.PB2

To the power connector on the first power supply

PS2.PB1 and

PS2.PB2

To the power connector on the second power supply

PS3.PB1 and

PS3.PB2

To the power connector on the third power supply

PWR1

To POWER1 connector on system board

PWR2

To POWER2 connector on system board

PWR3

To POWER3 connector on system board

FD

To diskette drives and other devices in external drive bays

HD_B/P

To POWER connector on SCSI backplane board

NOTE: For the full name of an abbreviation or acronym used in this table, see the abbreviation and acronym list.


Troubleshooting a Cooling Fan

A total of five cooling fans are installed in the Dell PowerEdge 6300 system chassis; two fans are located at the front of the system board tray, and three fans are mounted in a removable assembly adjacent to the hard-disk drive bays.

The three-fan assembly for the hard-disk drives is hot-pluggable. That is, you can remove the entire three-fan assembly and replace it with another entire three-fan assembly while the system is running. If you wish to replace the individual fans in the assembly, you must turn off the system before removing the fan assembly to prevent system overheating while the fan is replaced.

On the two-fan assembly for the system board, you can hot-plug the individual fans, but only a single fan at a time. Because the fans in the two-fan assembly can be removed and replaced without removing the assembly from the system, you can replace either fan while the system is running. However, if you need to remove the two-fan assembly, you must turn off the system before doing so.

CAUTION: You can hot-plug the three-fan assembly only if you immediately install a replacement assembly. Removing the three-fan assembly from a running system for any period of time beyond what is needed for immediate replacement can result in system overheating.

You can only hot-plug the fans in the two-fan assembly one fan at a time. Removing more than a single fan from operation at one time can result in system overheating.

If the Dell OpenManage HIP server-management application program issues a fan-related error message, follow these steps to troubleshoot the problem.

NOTE: You can perform the following procedure with the system turned on or off.

1. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

2. Check the fan cable connections as follows:

  • For the two-fan assembly for the system board, check the connections between the fan connectors and the extension cables extending from the system board.

  • For the three-fan assembly for the hard-disk drives, remove the assembly and reinstall it, making sure that the electrical connector is fully seated.

Do the fans operate properly?

Yes. You have fixed the problem.

No. Replace the defective fan or fan assembly as described in the following subsections.

Replacing a Fan in the Two-Fan Assembly

Follow these steps to replace a defective cooling fan in the two-fan assembly for the the system board.

NOTE: You can perform the following procedure with the system turned on or off.

1. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

2. Identify the defective cooling fan in the assembly.

Before removing the fan, note the direction of the airflow.

3. Disconnect the cooling fan's power cable from the extension cable attached to the appropriate FAN connector on the system board.

4. Remove the faulty cooling fan from the fan assembly by releasing the two fan retention tab s on the assembly (see Figure 10).

Figure 10. Removing a Cooling Fan in the Two-Fan Assembly

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5. Remove the four push pins that fasten the finger guard to the old fan and attach the guard to the new fan. Make sure that the guard is placed on the correct side of the fan relative to the direction of the airflow.

6. Insert the replacement cooling fan into the carrier, and snap the two fan retention tabs back into position.

7. Connect the cooling-fan power cable to the extension cable attached to the system board.

The cooling fan should begin operating.

8. Replace the computer cover.

Replacing the Three-Fan Assembly

Follow these steps to replace the three-fan assembly for the hard-disk drives.

NOTE: You can perform the following procedure with the system turned on or off.

1. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

2. Lift up on the release latch on the back of the three-fan assembly and slide the assembly out of the system (see Figure 11).

Figure 11. Removing the Three-Fan Assembly

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3. Slide the new replacement assembly into the system, making sure that the electrical connector is fully seated.

The cooling fans should begin operating.

4. Secure the fan cables using the cable management clip on the chassis by the fans.

5. Replace the computer cover.


Troubleshooting Expansion Cards

If an error message indicates an expansion-card problem or if an expansion card seems to perform incorrectly or not at all, the problem could be a faulty connection, a conflict with software or other hardware, or a faulty expansion card. Follow these steps to troubleshoot expansion cards:

1. Start the Resource Configuration Utility, and verify that all Peripheral Component Interconnect (PCI) expansion cards have been configured correctly. Save the configuration before exiting the utility.

See Chapter 5, "Using the Resource Configuration Utility," in the Dell Power-Edge 6300 Systems User's Guide for instructions.

2. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

3. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

4. Verify that each expansion card is firmly seated in its connector.

Are the expansion cards properly seated in their connectors?

Yes. Go to step 6.

No. Go to step 5.

5. Reseat the expansion cards in their connectors.

See  Removing an Expansion Card and Installing an Expansion Card  for instructions on removing and replacing expansion cards.

Is the problem resolved?

Yes. The connection was loose. You have fixed the problem.

No. Go to step 6.

6. Verify that any appropriate cables are firmly connected to their corresponding connectors on the expansion cards.

For instructions on which cables should be attached to specific connectors on an expansion card, see the expansion card's documentation.

Are the appropriate cables firmly attached to their connectors?

Yes. Go to step 8.

No. Go to step 7.

7. Reconnect the cable connectors to the appropriate connectors on the expansion cards.

Is the problem resolved?

Yes. The cable connections were loose. You have fixed the problem.

No. Go to step 8.

8. If applicable, inspect all jumpers and configuration switches on each expansion card.

For instructions on jumpers and configuration settings, see the expansion card's documentation.

Is each expansion card configured correctly?

Yes. Go to step 10.

No. Go to step 9.

9. Reconfigure the card according to the instructions in the card's documentation.

Is the problem resolved?

Yes. The memory configuration of the card was incorrect. You have fixed the problem.

No. Go to step 10.

10. Remove all expansion cards.

See  Removing an Expansion Card for information on removing expansion cards.

11. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

12. Enter the System Setup program, and update the system configuration information.

See Chapter 4, "Using the System Setup Program," in the Dell PowerEdge 6300 Systems User's Guide for instructions.

13. Run the RAM Test Group in the Dell Diagnostics.

See Running the Dell Diagnostics.

Do the tests complete successfully?

Yes. Go to step 14.

No. See Getting Help, for information on obtaining technical assistance.

14. Turn off the system, disconnect it from the AC power source, and remove the computer cover.

15. Reinstall one of the expansion cards you removed in step 10, and repeat steps 11 through 13.

16. Repeat steps 11 through 15 for each of the remaining expansion cards that you removed in step 10.

Have you reinstalled all of the expansion cards without encountering a test failure?

Yes. You have fixed the problem.

No. See Getting Help, for information on obtaining technical assistance.


Troubleshooting System Memory

A system memory problem can be a faulty dual in-line memory module (DIMM) or a faulty system board. If a random-access memory (RAM) error message appears, the system probably has a memory problem.

When you turn on or reboot the system, the Caps Lock and Scroll Lock indicators on the keyboard should flash momentarily and then turn off. If the Num Lock category in the System Setup program is set to On, the Num Lock indicator should flash momentarily and then remain on; otherwise, it should turn off. Abnormal operation of these indicators can result from a defective DIMM in socket DIMM A.

Follow these steps to troubleshoot system memory:

1. Turn on the system, including any attached peripherals.

Is there an error message indicating invalid system configuration information after the memory count completes?

Yes. Go to step 2.

No. Go to step 12.

2. Enter the System Setup program to check the Total Memory or System Memory setting.

See Chapter 4, "Using the System Setup Program," in the Dell PowerEdge 6300 Systems User's Guide for instructions.

Does the amount of memory installed match the Total Memory or System Memory setting?

Yes. Go to step 12.

No. Go to step 3.

3. Turn off the system, including any attached peripherals, and disconnect the AC power cable from its power source.

4. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

5. Remove the support panel.

Turn the two thumbscrews on the support panel and pull the tabs on the right side of the panel out of the slots in the chassis.

6. Remove the memory module.

Hold the module by the corners where the handles are and carefully pull the module out until the edge connectors are free from the system board connector.

NOTE: Be careful not to touch components or gold edge connectors on the module.

7. Reseat the DIMMs in their sockets.

See Adding Memory for instructions on removing and replacing DIMMs.

8. Replace the memory module.

Hold the module by the corners with the DIMM sockets facing down. Ease the module into the correct slot guides until it is touching the system board connector. Press the module carefully but firmly into the system board connector and rotate the handles closed.

NOTE: Before closing the handles, make sure the memory module is aligned with the system board connector.

9. Replace the support panel.

Align the panel so that the two tabs are to the right. Fit the tabs into the two slots on the chassis back and swing the panel closed. Secure the panel with the two thumbscrews.

10. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

11. Enter the System Setup program and check the System Memory setting again.

Does the amount of memory installed match the System Memory setting?

Yes. Go to step 12.

No. Go to step 13.

12. Reboot the system, and observe the monitor screen and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard.

Does the monitor screen remain blank, and do the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard remain on?

Yes. Go to step 13.

No. Go to step 15.

13. Turn off the system, disconnect it from the AC power source, and remove the computer cover.

14. If possible, swap the DIMM in socket DIMM A with one of the same capacity, reboot the system, and observe the monitor screen and the indicators on the keyboard.

Is the problem resolved?

Yes. You have fixed the problem.

No. Go to step 15.

15. Run the RAM Test Group in the Dell Diagnostics.

See Running the Dell Diagnostics.

Do the tests complete successfully?

Yes. You have fixed the problem.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting the Video Subsystem

Troubleshooting video problems involves determining which of the following is the source of the problem: the monitor, the monitor interface cable, the video memory, or the video logic of the computer. You can also have a high-resolution video expansion card installed, which overrides the video logic of the computer.

The following procedure troubleshoots problems with the video memory and video logic only. Before you begin, perform the procedure found in Troubleshooting the Monitor to determine whether or not the monitor is the source of the problem.

If you have a high-resolution video expansion card, first complete the steps in Troubleshooting Expansion Cards to verify that the card is configured and installed correctly.

Follow these steps to troubleshoot the video subsystem:

1. Run the Video Test Group in the Dell Diagnostics.

See Running the Dell Diagnostics.

Most of the tests in the Video Test Group are inter­active; that is, you must respond before the diagnostics continues with the next test.

Do the tests complete successfully?

Yes. It is not a video hardware problem. Go to Finding Software Solutions.

No. Go to step 2.

2. Turn off the system, including any attached peripherals, and disconnect the AC power cable from its power source.

3. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

4. Determine whether a video expansion card is installed.

Is a video expansion card installed?

Yes. Go to step 5.

No. The on-board video controller is faulty. See Getting Help, for instructions on obtaining technical assistance.

5. Remove the video expansion card, and repeat step 1.

Do the tests complete successfully?

Yes. The video expansion card is faulty. See Getting Help, for instructions on obtaining technical assistance.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting the System Board

A system board problem can result from a defective system board component, a faulty power supply, or a defective component connected to the system board. If an error message indicates a system board problem, follow these steps to troubleshoot the problem:

1. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

2. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

3. Remove all expansion cards except the SCSI host adapter card and the video expansion card (if they are installed).

4. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

5. Enter the System Setup program, and update the system configuration information.

See Chapter 4, "Using the System Setup Program," in the Dell PowerEdge 6300 Systems User's Guide for instructions.

6. Run the System Set Test Group in the Dell Diagnostics.

See Running the Dell Diagnostics.

Do the tests complete successfully?

Yes. Go to step 7.

No. Go to step 12.

7. Turn off the system, disconnect it from the AC power source, and remove the computer cover.

8. Reinstall one of the expansion cards you removed in step 3, repeat steps 4, 5, and 6, and continue with step 9.

9. Replace the computer cover, and reconnect the system to the AC power source.

10. Run the System Set Test Group again.

Do the tests complete successfully?

Yes. Go to step 11.

No. Go to step 12.

11. Repeat steps 7, 8, and 9 for each of the remaining expansion cards you removed in step 3.

Have you reinstalled all of the expansion cards without encountering a test failure?

Yes. Go to step 12.

No. The expansion card is faulty. See Getting Help, for instructions on obtaining technical assistance.

12. Disconnect the keyboard and reboot the system.

Does the system boot successfully?

Yes. Go to step 13.

No. See Getting Help, for instructions on obtaining technical assistance.

13. Swap the keyboard with a comparable working keyboard, and run the System Set Test Group again.

Do the tests complete successfully?

Yes. You have fixed the problem.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting the Diskette Drive Subsystem

If the monitor displays a system error message indicating a diskette drive problem during execution of either the boot routine or the Dell Diagnostics, the problem may be caused by any of the following conditions:

  • The system configuration settings do not match the physical diskette subsystem configuration.
  • The diskette drive cable is not properly connected or is faulty.
  • An expansion card is interfering with proper drive operations.
  • A diskette drive may be improperly configured.
  • The diskette drive is faulty.
  • The computer's power supply is not providing sufficient power for the drives.
  • The computer's diskette drive logic is faulty.

Follow these steps to troubleshoot the diskette drive subsystem:

1. Enter the System Setup program, and verify that the system is configured correctly for the Diskette Drive A setting.

See Chapter 4, "Using the System Setup Program," in the Dell PowerEdge 6300 Systems User's Guide for instructions.

2. If the system configuration settings are incorrect, make the necessary corrections in the System Setup program, and then reboot the system.

3. Run the Diskette Drives Test Group in the Dell Diagnostics to see whether the diskette drive subsystem now works correctly.

See Running the Dell Diagnostics for more information.

Do the tests complete successfully?

Yes. If you were in the middle of another procedure, continue with the next step in the procedure you were performing.

No. Go to step 4.

4. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

5. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

6. Remove the support panel.

Turn the two thumbscrews on the support panel and pull the tabs on the right side of the panel out of the slots in the chassis.

7. Check the diskette drive cabling.

Is the diskette drive securely connected to the diskette drive interface cable connector?

Is the diskette drive interface cable connector securely connected to the interface connector (labeled "FLOPPY") on the system board?

Is the drive's DC power cable firmly connected to the drive?

Yes. Go to step 10.

No. Go to step 8.

8. Reconnect the cable connectors.

9. Replace the support panel.

Align the panel so that the two tabs are to the right. Fit the tabs into the two slots on the chassis back and swing the panel closed. Secure the panel with the two thumbscrews.

10. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

11. Run the Diskette Drives Test Group in the Dell Diagnostics to see whether the diskette drive subsystem now works correctly.

See Running the Dell Diagnostics for more information.

Do the tests complete successfully?

Yes. You have fixed the problem.

No. Go to step 12.

12. Repeat steps 4 and 5, and remove all expansion cards.

See Removing an Expansion Card for instructions.

13. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

14. Run the Diskette Drives Test Group in the Dell Diagnostics to see whether the diskette drive subsystem now works correctly.

Do the tests complete successfully?

Yes. An expansion card may be conflicting with the diskette drive logic, or you may have a faulty expansion card.
Repeat steps 1, 2, and 3.

No. Go to step 13.

15. Repeat steps 4 and 5, and reinstall one of the expansion cards you removed in step 10.

See Removing an Expansion Card for instructions.

16. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

17. Run the Diskette Drives Test Group in the Dell Diagnostics to see whether the diskette drive subsystem now works correctly.

Do the tests complete successfully?

Yes. Go to step 18.

No. Go to step 19.

18. Repeat steps 15 through 17 until all expansion cards have been reinstalled or until one of the expansion cards prevents the system from booting from the diagnostics diskette.

19. Repeat steps 4 and 5. Verify that the drive's termination is enabled and that the drive-select jumper is set to the DS1 position.

NOTE: Some diskette drives may require you to remove the drive from the computer to change the drive's termination and drive-select settings.

For information about the drive's termination and drive-select settings, refer to the documentation for the drive.

Is the drive configured correctly?

Yes. See Getting Help, for instructions on obtaining technical assistance.

No. Go to step 20.

20. Correct the drive-select jumper and drive termination settings.

21. Replace the computer cover, reconnect the system to the AC power source, and turn on the system.

22. Run the Diskette Drives Test Group in the Dell Diagnostics to see whether the diskette drive subsystem now works correctly.

Do the tests complete successfully?

Yes. You have solved the problem.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting a SCSI Tape Drive

A SCSI tape drive can be an internal device installed in one of the externally accessible drive bays or an external device that attaches to a SCSI host adapter connector on the back panel of the computer. The SCSI tape drive is controlled by a SCSI host adapter card installed in the computer, which may also control other SCSI devices connected to one or more SCSI cables. SCSI devices often require device drivers for the particular operating system being used by the computer system.

Tape drive problems often result from a defective tape drive, a defective tape cartridge, or software. Follow these steps to troubleshoot a SCSI tape drive:

1. Remove the tape that was in use when the problem occurred, and replace it with a tape that you know is not defective.

Is the problem resolved?

Yes. The original tape was defective. Replace it with a new tape. You have fixed the problem.

No. Go to step 2.

2. Reboot the system and press <F2> to enter the System Setup program.

Is Secondary SCSI set to Enabled?

Yes. Go to step 4.

No. Go to step 3.

3. Verify that any required SCSI device drivers are installed on the hard-disk drive and are configured correctly.

See Chapter 3, "Installing and Configuring SCSI Drivers," in the Dell PowerEdge 6300 Systems User's Guide for instructions on installing and configuring the SCSI device drivers for the system's on-board SCSI host adapter or Dell PowerEdge Expandable RAID Controller host adapter card. For any other type of SCSI host adapter card, see the documentation that accompanied the SCSI host adapter card.

Are the drivers installed and configured correctly?

Yes. The SCSI device drivers were installed or configured incorrectly or were corrupted. You have fixed the problem.

No. Go to step 4.

4. Reinstall the tape backup software as instructed in the tape-backup software documentation.

Is the problem resolved?

Yes. The tape backup software was corrupted. You have fixed the problem.

No. Go to step 5.

5. Reboot the system and check for the presence of the tape drive during the optional ROM scan sequence.

Is the problem resolved?

Yes. The drive is correctly cabled and is receiving power. Go to step 10.

No. Go to step 6.

6. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

7. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

8. Remove the support panel.

Turn the two thumbscrews on the support panel and pull the tabs on the right side of the panel out of the slots in the chassis.

9. Check the SCSI cable connections to the tape drive and to the SCSI host adapter connector. If the tape drive is an internal device, check the DC power cable connection to the tape drive.

Are the cables firmly connected?

Yes. Go to step 11.

No. Go to step 10.

10. Reseat the cable connectors, replace the support panel, and replace the computer cover. Reconnect the system to the AC power source and turn it on.

Is the problem resolved?

Yes. You have fixed the problem.

No. Go to step 11.

11. Turn off the system, including any attached peripherals, and disconnect the AC power cable from its power source. Then remove the computer cover.

12. Remove the tape drive. Then verify that the tape drive is configured for a unique SCSI ID number and that the tape drive is terminated or not terminated as appropriate.

See the documentation for the tape drive for instructions on selecting the SCSI ID and enabling or disabling termination.

Is the tape drive configured correctly?

Yes. Go to step 15.

No. Go to step 13.

13. Reconfigure the tape drive's SCSI ID and termination settings as appropriate. Reinstall the tape drive, replace the computer cover, and reconnect the system to the AC power source and turn it on.

Is the problem resolved?

Yes. The tape drive was configured incorrectly. You have fixed the problem.

No. Go to step 14.

14. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source. Then remove the computer cover.

15. Replace the SCSI cable that connects the tape drive to the SCSI host adapter. Replace the computer cover, and then reconnect the system to the AC power source and turn it on.

Is the problem resolved?

Yes. You have fixed the problem.

No. See Getting Help, for instructions on obtaining technical assistance.


Troubleshooting SCSI Hard-Disk Drives

Hard-disk drive problems can be caused by a number of conditions, including problems with the drive itself, the SCSI backplane board, or a cable connected to the SCSI backplane board.

The SCSI backplane board monitors the SCSI hard-disk drives connected to the backplane board. In the event of a drive failure, systems using the optional Dell PowerEdge Expandable RAID Controller host adapter card will issue the following signals using the drive indicator lights adjacent to each SCSI hard-disk drive:

  • If a drive shows signs of imminent failure, the drive online indicator stays on , and the drive failure indicator blinks on briefly each second.
  • If a drive has failed, the drive online indicator turns off , and the drive failure indicator blinks off briefly each second.

Other drive indicator patterns are listed in Table 2.

Table 2. SCSI Hard-Disk Drive Indicator Patterns

 

Condition

Indicator Pattern

Identify drive

All three drive status indicators blink simultaneously.

Drive being prepared for removal

The three drive status indicators flash sequentially.

Drive ready for insertion or removal

All three drive status indicators are off.

Drive being prepared for operation

The drive online indicator is on. The drive activity light may flash briefly.

Drive bay empty

All three drive status indicators are off.

Drive predicted failure

The drive online indicator is on. The drive failure indicator blinks on briefly each second.

Drive failed

The drive online indicator turns off. The drive failure indicator blinks off briefly each second.

Drive rebuilding

The drive online indicator blinks rapidly.

Drive online

The drive online indicator is on.

Use the following procedure to troubleshoot a hard-disk drive problem.

CAUTION: This troubleshooting procedure can destroy data stored on the hard-disk drive. Before you proceed, make sure you have backed up all the files on the hard-disk drive.

1. If the on-board SCSI host adapter is being used to control the SCSI backplane board, reboot the system and press <F2> to enter the System Setup program.

Is Primary SCSI A set to Enabled?

Yes. Go to step 3.

No. Go to step 2.

2. Change the Primary SCSI A setting to Enabled, and reboot the system.

Is the problem resolved?

Yes. You have fixed the problem.

No. Go to step 3.

3. Verify that the SCSI device drivers are installed and configured correctly.

See Chapter 3, "Installing and Configuring SCSI Drivers," in the Dell PowerEdge 6300 Systems User's Guide to determine which drivers are required and how they should be installed and configured.

Are the required SCSI device drivers installed and configured correctly?

Yes. Go to step 5.

No. Go to step 4.

4. Reinstall and/or reconfigure the required SCSI device drivers. Then reboot the system.

Is the problem resolved?

Yes. You have fixed the problem.

No. Go to step 5.

5. Remove the drive carrier and install it in another drive bay.

Is the problem resolved?

Yes. The SCSI backplane board has a defective connector. See Getting Help, for instructions on obtaining technical assistance.

No. Go to step 6.

6. Turn off the system, including any attached peripherals, and disconnect the system from its AC power source.

7. Remove the computer cover.

See Removing the Computer Cover.

CAUTION: See Protecting Against Electrostatic Discharge.

8. Check the SCSI cable connections to the SCSI backplane board and to the SCSI host adapter. Check the DC power cable connection to the SCSI backplane board.

The SCSI cable may be connected to the SCSI host adapter on the system board or to a SCSI host adapter card in an expansion slot. See Installing Hard-Disk Drives, for the location of the cable connectors on the SCSI backplane board and the SCSI host adapter.

Are the cables firmly connected?

Yes. Go to step 10.

No. Go to step 9.

9. Reseat the cable connectors, and then reconnect the computer and peripherals to their AC power sources and turn them on.

Is the problem resolved?

Yes. The cable connections were faulty. You have fixed the problem.

No. Go to step 10.

10. Partition and logically format the hard-disk drive. If possible, restore the files to the drive.

To partition and logically format the drive, see the documentation for the computer's operating system.

Is the problem resolved?

Yes. The hard-disk drive format was corrupted. You have fixed the problem.

No. See Getting Help, for instructions on obtaining technical assistance.

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