You can increase your computer memory by installing memory modules on the system board.
Your computer supports DDR2 memory. For additional information on the type of memory supported by your computer, see your Owner's Manual.
DDR2 Memory Overview
DDR2 memory modules should be installed in pairs of matched memory size, speed, and technology. If the DDR2 memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. See the label on the module to determine the module's capacity.
NOTE: Always install DDR2 memory modules in the order indicated on the system board.
The recommended memory configurations are:
A pair of matched memory modules installed in DIMM connectors 1 and 2
or
A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4
NOTICE: Do not install ECC or buffered memory modules. Only unbuffered, non-ECC memory is supported.
NOTE: If you install DDR2 667-MHz memory, the speed is reduced to 533 MHz.
If you install mixed pairs of DDR2 400-MHz (PC2-3200) and DDR2 533-MHz (PC2-4300) memory, the modules function at the slowest speed installed.
Be sure to install a single memory module in DIMM connector 1, the connector closest to the processor, before you install modules in the other connectors.
NOTE: Memory purchased from Dell is covered under your computer warranty.
NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module. Otherwise, your computer may not start properly. You should install your original memory modules in pairs either in DIMM connectors 1 and 2 or DIMM connectors 3 and 4.
Addressing Memory With 4-GB Configurations
Your computer supports a maximum of 4 GB of memory when you use four 1-GB DIMMs. Current operating systems, such as Microsoft® Windows® XP, can only use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than 4 GB. Certain components within the computer require address space in the 4-GB range. Any address space reserved for these components cannot be used by computer memory.
Removing Memory
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Press out the securing clip at each end of the memory module connector.
Grasp the module and pull up.
If the module is difficult to remove, gently ease the module back and forth to remove it from the connector.
Installing Memory
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
Connect your computer and devices to electrical outlets, and turn them on.
When a message appears, stating that memory size has changed, press <F1> to continue.
Log on to your computer.
Right-click the My Computer icon on your Microsoft® Windows® desktop and click
Properties.
Click the General tab.
To verify that the memory is installed correctly, check the amount of memory (RAM) listed.
Cards
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Your Dell™ computer provides the following slots for PCI and PCI Express cards:
Two PCI card slots
One PCI Express x16 card slot
One PCI Express x1 card slot
PCI Cards
Your computer supports two PCI cards.
If you are installing or replacing a card, follow the procedures in the next section. If you are removing but not replacing a PCI card, see "Removing a PCI Card."
If you are replacing a card, remove the current driver for the card from the operating system.
Gently push the release tab on the card retention door from the inside to pivot the door open.
Because the door is captive, it will remain in the open position.
If you are installing a new card, remove the filler bracket to create a card-slot opening. Then
continue with step 6.
If you are replacing a card that is already installed in the computer, remove the card.
If necessary, disconnect any cables connected to the card. Grasp the card by its top corners, and ease it out of its connector.
Prepare the card for installation.
See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer.
CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.
Place the card in the connector and press down firmly. Ensure that the card is fully seated in
the slot.
1
bracket within slot
4
alignment guide
2
bracket caught outside of slot
5
fully seated card
3
alignment bar
6
not fully seated card
Before you close the card retention door, ensure that:
The tops of all cards and filler brackets are flush with the alignment bar.
The notch in the top of the card or filler bracket fits around the alignment guide.
1
alignment guide
3
release tab
2
alignment bar
4
card retention door
Close the card retention door by snapping it into place to secure the card(s).
NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment.
Connect any cables that should be attached to the card.
See the documentation for the card for information about the card's cable connections.
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
Replace the computer cover, reconnect the computer and devices to electrical outlets, and
then turn them on.
If you installed a sound card:
Enter system setup, select Audio Controller, and then change the setting to Off.
Connect external audio devices to the sound card's connectors. Do not connect external
audio devices to the microphone, speaker/headphone, or line-in connectors on the back
panel.
If you installed an add-in network adapter and want to disable the integrated network
adapter:
Enter system setup, select Integrated NIC, and then change the setting to Off.
Connect the network cable to the add-in network adapter's connectors. Do not connect
the network cable to the integrated connector on the back panel.
Install any drivers required for the card as described in the card documentation.
Gently push the release tab on the card retention door from the inside to pivot the door open.
Because the door is captive, it will remain in the open position.
If you are removing the card permanently, install a filler bracket in the empty card-slot
opening.
If you need a filler bracket, contact Dell (see your Owner's Manual for information about how to contact Dell).
NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
Close the card retention door by snapping it into place to secure the card(s).
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
Replace the computer cover, reconnect the computer and devices to electrical outlets, and
then turn them on.
Remove the card's driver from the operating system.
If you removed a sound card:
Enter system setup, select Audio Controller, and then change the setting to On.
Connect external audio devices to the audio connectors on the back panel of the
computer.
If you removed an add-in network connector:
Enter system setup, select Integrated NIC, and then change the setting to On.
Connect the network cable to the integrated connector on the back panel of the
computer.
PCI Express Cards
Your computer supports one PCI Express x16 card and one PCI Express x1 card.
If you are installing or replacing a PCI Express card, follow the procedures in the next section. If you are removing but not replacing a card, see "Removing a PCI Express Card."
If you are replacing a card, remove the current driver for the card from the operating system.
Gently push the release tab on the card retention door from the inside to pivot the door open.
Because the door is captive, it will remain in the open position.
If your computer includes a card retention mechanism, to secure the x16 card in place from
the top:
Pivot the mechanism upward and gently squeeze in on the sides to release the
mechanism from the two tab slots holding it in place.
Set the retention mechanism aside in a secure location.
If you are installing a new card, remove the filler bracket to create a card-slot opening. Then
continue with step 6.
If you are replacing a card that is already installed in the computer, remove the card.
If necessary, disconnect any cables connected to the card. If your computer includes a card retention mechanism, remove the top of the retention mechanism by pressing the tab and pulling up on the top. Gently pull the securing tab, grasp the card by its top corners, and then ease it out of its connector.
1
securing tab
4
PCI Express x16 card slot
2
PCI Express x1 card
5
PCI Express x16 card
3
PCI Express x1 card slot
Prepare the card for installation.
See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer.
CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.
If you are installing the card into the x16 card connector, position the card so the securing slot
is aligned with the securing tab, and gently pull the securing tab.
NOTICE: Ensure that you release the securing tab to unseat the card. If the card is not removed correctly, the system board may be damaged.
Place the card in the connector and press down firmly. Ensure that the card is fully seated in
the slot.
1
bracket within slot
4
alignment guide
2
bracket caught outside of slot
5
fully seated card
3
alignment bar
6
not fully seated card
If you replaced a card that was already installed in the computer and you removed the
retention mechanism, you may reinstall the retention mechanism.
Before replacing the card retention mechanism, ensure that:
The tops of all cards and filler brackets are flush with the alignment bar.
The notch in the top of the card or filler bracket fits around the alignment guide.
Snap the card retention mechanism into place, securing the x16 PCI card.
1
card retention door
2
card retention mechanism
3
release tabs (2)
NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment.
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
Replace the computer cover, reconnect the computer and devices to electrical outlets, and
then turn them on.
If you installed a sound card:
Enter system setup, select Audio Controller, and then change the setting to Off.
Connect external audio devices to the sound card's connectors. Do not connect external
audio devices to the microphone, speaker/headphone, or line-in connectors on the back
panel.
If you installed an add-in network adapter and want to disable the integrated network
adapter:
Enter system setup, select Integrated NIC, and then change the setting to Off.
Connect the network cable to the add-in network adapter's connectors. Do not connect
the network cable to the integrated connector on the back panel.
Install any drivers required for the card as described in the card documentation.
Gently push the release tab on the card retention door from the inside to pivot the door open.
Because the door is captive, it will remain in the open position.
If your computer includes a card retention mechanism, to secure the x16 card in place from
the top:
Pivot the mechanism upward and gently squeeze in on the sides to release the
mechanism from the two tab slots holding it in place.
Set the retention mechanism aside in a secure location.
If you are removing the card permanently, install a filler bracket in the empty card-slot
opening.
If you need a filler bracket, contact Dell (see your Owner's Manual for information about how to contact Dell).
NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
NOTE: When you install a filler bracket, ensure that the bracket is seated correctly.
Reseat the card retention mechanism in the tabs and pivot downward to snap it into place.
Close the card retention door to snap it into place, securing the card(s).
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
Replace the computer cover, reconnect the computer and devices to electrical outlets, and
then turn them on.
Remove the card's driver from the operating system.
If you removed a sound card:
Enter system setup, select Audio Controller, and then change the setting to On.
Connect external audio devices to the audio connectors on the back panel of the
computer.
If you removed an add-in network connector:
Enter system setup, select Integrated NIC, and then change the setting to On.
Connect the network cable to the integrated connector on the back panel of the
computer.
Install any drivers required for the card as described in the card documentation.
Drive Panel
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
Remove the hard drive and second hard drive, if applicable.
Remove the two front-panel screws.
NOTICE: Use care when handling the front-panel release tabs to avoid damaging them.
Using a small, flat-blade screwdriver, press the four top front-panel release tabs upwards and
press down on the four bottom release tabs to loosen the front panel.
Starting from the bottom of the front panel, pivot the panel toward the top of the computer
and remove the panel.
1
top front-panel release tabs (4)
2
front-panel screws (2)
3
front panel
4
bottom front-panel release tabs (4)
Drives
Your computer supports a combination of these devices:
Up to two serial ATA hard drives
One FlexBay drive (may contain an optional floppy drive or an optional Media Card Reader)
Up to two CD or DVD drives
1
CD/DVD drive(s)
2
FlexBay for optional floppy drive or optional Media Card Reader
3
hard drive(s)
Connect CD/DVD drives to the connector labeled "IDE1" on the system board. Serial ATA hard drives should be connected to the connectors labeled "SATA0" or "SATA2" on the system board.
IDE Drive Addressing
When you connect two IDE devices to a single IDE interface cable and configure them for the cable select setting, the device attached to the last connector on the interface cable is the master or boot device (drive 0), and the device attached to the middle connector on the interface cable is the slave device (drive 1). See the drive documentation in your upgrade kit for information on configuring devices for the cable select setting.
Connecting and Disconnecting Drive Interface Cables
When you install a drive, you connect two cables—a DC power cable and a data cable—to the back of the drive and to the system board.
When removing an IDE drive data cable, grasp the colored pull-tab and pull until the connector detaches.
Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the other connector. Keyed connectors ensure that the pin-1 wire in the cable (indicated by the colored stripe along one edge of the IDE cable—serial ATA cables do not use a colored stripe) goes to the pin-1 end of the connector. The pin-1 end of a connector on a board or a card is usually indicated by a silk-screened "1" printed directly on the board or card.
NOTICE: When you connect an IDE interface cable, do not place the colored stripe away from pin 1 of the connector. Reversing the cable prevents the drive from operating and could damage the controller, the drive, or both.
1
interface cable
2
interface connector
Power Cable Connector
To connect a drive using the power cable, locate the power connector on the power supply.
1
SATA power cable connector
3
power cable connector
2
power connector
4
power connector
Hard Drive
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
NOTICE: If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure.
Check the documentation for the drive to verify that it is configured for your computer.
If you are installing a replacement hard drive, remove the old hard drive.
Unpack the replacement hard drive, and prepare it for installation.
Check the documentation for the drive to verify that it is configured for your computer.
NOTE: If your replacement hard drive does not have the hard drive bracket attached, remove the bracket from the old drive by unsnapping it from the drive. Snap the bracket onto the new drive.
1
drive
2
hard drive bracket
Gently slide the drive into place until you feel a click or feel the drive securely installed.
Connect the power and hard-drive cables to the drive.
1
serial ATA data cable
2
power cable
Check all connectors to be certain that they are properly cabled and firmly seated.
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
Connect your computer and devices to electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
Adding a Second Hard Drive
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
Check the documentation for the drive to verify that it is configured for your computer.
Press the blue release tabs on each side of the hard drive bracket toward each other and slide
the drive up and out of the computer.
Snap the bracket onto the hard drive.
Gently slide the new drive (the second hard drive) into place until you feel a click or feel the
drive securely installed.
1
release tabs (2)
3
hard drive bay
2
second hard drive in lower bay
4
primary hard drive in upper bay
Connect a power cable to the drive.
Connect the data cable to the drive and to the system board.
Floppy Drive
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
Disconnect the power and data cables from the back of the floppy drive.
NOTE: If you are installing a PCI Express x16 card, the card may cover the floppy-drive connectors. Remove the card before connecting the floppy-drive cables.
Slide the sliding plate lever toward the bottom of the computer and, without releasing the
sliding plate lever, slide the floppy drive out through the front of the computer.
1
sliding plate lever
2
sliding plate
3
floppy drive
Installing a Floppy Drive
NOTE: If the new floppy drive does not include shoulder screws, use the screws within the drive panel insert.
NOTICE: To connect a network cable, first plug the cable in to the network port or device and then plug it in to the computer.
Connect your computer and devices to their electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
Enter system setup and select the appropriate Diskette Drive option.
Verify that your computer works correctly by running the Dell Diagnostics.
Media Card Reader (Optional)
For information about using a Media Card Reader, see your Owner's Manual.
Removing a Media Card Reader
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Disconnect the FlexBay USB cable on the back of the Media Card Reader from the Media
Card Reader connector on the system board and route the cable through the cable routing
clip.
1
sliding plate lever
2
sliding plate
3
Media Card Reader
Slide the sliding plate toward the bottom of the computer and, without releasing the sliding
plate, slide the Media Card Reader out through the front of the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Disconnect the power and data cables from the back of the drive.
Slide the sliding plate lever toward the bottom of the computer and, without releasing the
sliding plate lever, slide the CD/DVD drive out through the front of the computer.
NOTICE: To connect a network cable, first plug the cable in to the network port or device and then plug it in to the computer.
Connect your computer and devices to their electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
Enter system setup and select the appropriate Drive option.
Verify that your computer works correctly by running the Dell Diagnostics.
Heat-Sink Assembly
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
CAUTION: Despite having a plastic shield, the heat-sink assembly may be very hot during normal operation. Ensure that the assembly has had sufficient time to cool before you touch it.
NOTE: To loosen the two captive screws on each side of the heat-sink assembly, you need a long Phillips screwdriver.
Loosen the two captive screws that attach the heat-sink assembly to the system board on
either side of the assembly.
Pivot the assembly toward the back of the computer and lift to remove the assembly.
NOTICE: After you remove the heat-sink assembly, lay the assembly on its side. Do not set the heat-sink assembly upright or touch the thermal interface, as this may result in damage to the thermal interface material.
Lay the assembly aside on its side.
1
heat-sink assembly
2
captive screws (2)
NOTICE: When you install the heat-sink assembly, do not touch the thermal interface on its underside, as this may result in damage to the thermal interface material.
Processor
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat-sink assembly. If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you install your new processor.
Push down on the release lever and slide the lever out from under the side latch on the
processor socket.
Pull the lever back to release the processor cover.
1
processor cover
4
release lever
2
processor
5
side latch
3
processor socket
NOTICE: When removing or replacing the processor, do not touch any of the pins inside the processor socket or allow any objects to fall onto the pins in the socket.
Grasp the processor by the edges to remove it from the processor socket.
Leave the release lever extended in the release position so that the socket is ready for the new processor.
Installing the Processor
NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: When installing the processor, do not touch any of the pins inside the socket or allow any objects to fall onto the pins in the socket.
Unpack the new processor, being careful not to touch the underside of the processor.
NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer.
If the release lever on the processor socket is not fully extended, move it to that position.
Orient the front and rear alignment notches on the processor with the front and rear
alignment notches on the socket.
Align the pin-1 corners of the processor and socket.
1
processor cover
6
release lever
2
tab
7
front alignment notch
3
processor
8
socket and processor pin-1 indicators
4
processor socket
9
rear alignment notch
5
cover latch
NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor.
Set the processor lightly in the socket and ensure that the processor is positioned correctly.
When the processor is fully seated in the socket, close the processor cover.
Ensure that the tab on the processor cover is positioned underneath the release lever at the front of the socket.
Pivot the release lever back toward the socket and snap it into place under the side latch to
secure the processor.
NOTICE: If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you replace the processor.
If you installed a processor replacement kit from Dell, return the original heat-sink assembly and processor to Dell in the same package in which your replacement kit was sent.
NOTICE: When installing the heat-sink assembly, do not touch the thermal interface on its underside, as this may result in damage.
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug the cable into the computer.
Connect your computer and devices to electrical outlets, and turn them on.
Fan Assembly
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Press the release tab on the fan-cable connector on the system board to remove the
connector.
1
fan release tabs (2)
2
fan assembly
3
fan cable connector
4
release tab on fan cable connector
Simultaneously press the fan-release tab on one side of the fan assembly and pull the fan-
release tab located on the bottom of the opposite side of the assembly upwards.
Slide the fan assembly toward the back of the computer and lift to remove the assembly.
Front I/O Panel
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Remove the screw that secures the front I/O panel to the front of the computer.
Pull the I/O panel toward the back of the computer and lift the panel to remove from the
computer.
Disconnect any cables from the I/O panel.
System Board
Jumper Settings
The jumper locations are shown below.
Jumper
Setting
Description
PSWD
(default)
Password features are enabled.
Password features are disabled.
RTCRST
(default)
Real-time clock reset in normal operation.
Clear CMOS settings.
Removing the System Board
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
Shut down the computer through the Start menu.
Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer, turn
them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network port or device.
Disconnect any telephone or telecommunication lines from the computer.
Disconnect your computer and all attached devices from their electrical outlets, and then
press the power button to ground the system board.
NOTICE: To connect a network cable, first plug the cable into the network port or device, and then plug the cable into the computer.
Connect your computer and devices to electrical outlets, and turn them on.
Power Supply
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
Disconnect the DC power cables from the system board and the drives.
1
release button
2
power supply
3
screws (4)
4
AC power connector
NOTICE: Note the routing of the DC power cables underneath the routing clips in the computer frame as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped.
Remove the four screws that attach the power supply to the back of the computer frame.
Press the release button located on the floor of the computer frame.
Slide the power supply toward the front of the computer approximately 1 inch.
Lift the power supply out of the computer.
Replacing the Power Supply
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
Slide the power supply into place.
Replace the screws that secure the power supply to the back of the computer frame.
Reconnect the DC power cables.
NOTICE: You must route the DC power cables properly through the routing clips when you replace the cables to prevent them from being pinched or crimped.
Route the cables through the routing clips, and press the clips to close them over the cables.
