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Internal Components: Dell OptiPlex GX200 System User's Guide
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Internal Components: Dell™ OptiPlex™ GX200 System User's Guide
This section provides troubleshooting procedures for components
inside your 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:
- A copy of the Dell ResourceCD
- A small flat-blade screwdriver and a #1 Phillips-head screwdriver (or
quarter-inch hex-nut driver)
The procedures in this section require that you remove the cover and
work inside your computer. While working inside your 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 your computer is safe—if you observe the
following precautions.
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CAUTION FOR YOUR PERSONAL SAFETY AND
PROTECTION OF THE EQUIPMENT |
Before you start to work on the computer, perform the following steps in
the sequence indicated:
- Turn off the computer and all peripherals.
- Touch an unpainted metal surface on the
computer chassis, such as the metal around the card-slot openings at the back of your
computer, before touching anything inside your computer.
- Disconnect the computer and peripherals from their electrical outlets. Doing so reduces the potential for personal injury or shock. Also disconnect any telephone or telecommunication lines from the computer.
While
you work, periodically touch an unpainted metal surface on the computer chassis to
dissipate any static electricity that might harm internal components.
In addition, Dell recommends that you periodically review the safety
instructions in your System Information Guide.
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NOTE: If your low-profile or midsize chassis has
an optional stand attached to it, remove the optional stand before
removing the computer cover. |
To remove the computer cover, perform the following steps:
- Turn off your computer and peripherals, and observe the Warning
for Your Personal Safety and Protection of Your Equipment described in "Safety First — For You
and Your Computer."
- If you installed a padlock through the padlock ring on the back panel,
remove the padlock.
- Remove the computer cover.
If your computer is a small-form-factor, low-profile, or midsize chassis, press in on the two securing buttons until the cover is free to swing up (see Figure 1 or Figure 2).
Raise the back of the cover, and pivot it toward the front
of the computer.
Lift the cover off the hooks at the front of the chassis.
Figure 1. Removing the Small-Form-Factor Computer Cover
Figure 2. Low-Profile or Midsize Computer Cover Removal
If your computer is a mini tower chassis, face the
back of the computer and slide the upper half of the padlock ring to the left to unlock
the cover release mechanism. Then face the left side of the computer and
press the release button (located at the bottom-left corner of the front bezel) (see Figure 3).
Lift the bottom of the cover, allowing it to pivot up
toward you.
Disengage the tabs that secure the cover to the top of the
chassis, and lift the cover away.
To replace the computer cover, perform the following steps:
- 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.
- Check to see that no tools or extra parts (including screws) are left
inside the computer's chassis.
- Replace the computer cover.
If
your computer is a small-form-factor, low-profile, or midsize chassis, face the front of
the computer and hold the cover at a slight angle as shown in Figure 4 or Figure
5.
Align the bottom of the cover with the bottom of the chassis and
insert the hooks on the cover into the recessed slots on the computer chassis so that the
tabs catch the hooks inside the slots.
Pivot the cover down toward the back of the chassis and into
position. Make sure that the securing buttons click into place.
Figure 4.
Replacing the Small-Form-Factor Computer Cover
Figure 5. Replacing the Low-Profile or Midsize Computer Cover
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| 1 |
Ledge |
| 2 |
Hooks in slots (3 on low-profile chassis;
4 on midsize chassis) |
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If your computer is a mini tower chassis, face the left side of the
computer and hold the cover at a slight angle as shown in Figure
6.
Align the top of the cover with the top of the chassis and insert
the hooks on the cover into the recessed slots on the computer chassis so that the tabs
catch the hooks inside the slots.
Pivot the cover down toward the bottom of the chassis and into
position. Make sure that the securing hooks at the bottom of the cover click into place.
- If you are using a padlock to secure your system, reinstall the
padlock.
Liquids can damage your computer. While you are not likely to
submerge your computer, spills, splashes, and excessive humidity can also cause damage. If
an external device (such as a printer or an external drive) gets wet, contact the
manufacturer for instructions. If your computer gets wet, perform the following steps:
- Turn off the system, including any attached peripherals, and
disconnect all the AC power cables from their electrical outlets. Also, disconnect any
telephone or telecommunication lines from the computer.
- Remove the computer cover.
- Let the computer dry
for at least 24 hours. Make sure that it is thoroughly dry before you proceed.
- Remove all expansion cards
installed in the computer except a drive controller card and video expansion card.
- Replace the computer cover, reconnect the system to an
electrical outlet, and turn it on.
If the system has power, proceed to step 6. If the system does not have power, see "Getting
Help" for instructions on obtaining technical
assistance.
- Turn off the system,
disconnect it from the electrical outlet, remove the computer cover, and reinstall all
expansion cards that you removed in step 4.
- Replace the computer
cover, and reconnect the system to an electrical outlet. Also, reconnect any telephone or
telecommunication lines to the computer.
- Start the
Dell Diagnostics and run the System Board
Devices test group.
If the tests complete
successfully, your system is operating properly. If any of the tests fail, see "Getting Help" for instructions on
obtaining technical assistance.
If your computer was dropped or damaged, you should check your
computer to see if it functions properly. If an external device attached to your 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. To troubleshoot a damaged
computer, perform the following steps:
- Turn off the system, including any attached peripherals, and
disconnect all the AC power cables from their electrical outlets. Also, disconnect any
telephone or telecommunication lines from the computer.
- Remove the computer cover.
- Check all the
expansion-card connections in the computer.
- Verify the
diskette/tape drive, hard-disk drive, and all other internal connections.
Make sure that all cables are properly connected and that all components are properly
seated in their connectors and sockets.
- Replace the computer cover, reconnect the system to an
electrical outlet, and reconnect any telephone or telecommunication lines.
- Start the
Dell Diagnostics and run the System Board Devices test group.
If the tests complete successfully, your system is operating properly. If any of the tests
fail, see "Getting Help" for instructions on obtaining technical
assistance.
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CAUTION: 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. |
If an error message indicates a problem with the battery or if System Setup loses the system configuration
information when the computer is turned off, the battery may be defective.
To troubleshoot the battery, perform the following steps:
- Turn off the system, including any attached peripherals, and
disconnect all the AC power cables from their electrical outlets. Also, disconnect any
telephone or telecommunication lines from the computer.
- Remove the computer cover.
- Reseat the battery in
its socket.
The battery is a coin cell that snaps into a socket on the system board.
- If the problem is not resolved, replace the battery.
If the problem is still not resolved, you may have a faulty system
board. See "Getting Help"
for instructions on obtaining technical assistance.
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. To
troubleshoot expansion cards, perform the following steps:
- Turn off the system, including any attached peripherals, and
disconnect all the AC power cables from their electrical outlets. Also, disconnect any
telephone or telecommunication lines from the computer.
- Remove the computer cover.
- Verify that each
expansion card is firmly seated in its connector. If any expansion cards are loose, reseat
them.
- Verify that any cables
are firmly connected to their corresponding connectors on the expansion cards. If any
cables appear loose, reconnect them.
For instructions on which cables should be attached to specific connectors on an expansion
card, see the expansion card's documentation.
- Remove all expansion cards
except the video card.
- Replace the computer cover, reconnect the system to an
electrical outlet, and turn it on.
- Start the
Dell Diagnostics and run the RAM
test group.
If the tests complete successfully,
proceed to step 8. If any of the tests fail, see "Getting Help" for information on obtaining technical
assistance.
- Turn off the system,
disconnect it from the electrical outlet, and remove the computer cover.
- Reinstall one of the
expansion cards that you removed previously, and repeat steps 6 and 7.
If any of the tests fail, the expansion card you just reinstalled is faulty and needs to
be replaced. If the tests complete successfully, repeat steps 8 and 9 with another
expansion card.
- If you have replaced all the expansion cards removed
previously and the expansion card problem is not resolved, see "Getting Help" for information on obtaining technical assistance.
A computer memory problem can be a faulty Rambus in-line memory
module (RIMM) or a faulty system board. If a random-access memory (RAM) error message
appears, the computer 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 option in System Setup 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 RIMM in socket A. To troubleshoot system memory, perform the
following steps:
- Turn on the system, including any attached peripherals.
- If an error message
indicates invalid system configuration information, enter System Setup and check the System
Memory option. If the amount of memory displayed does not match the amount of
memory installed, turn off the computer, disconnect it from the electrical outlet, remove the computer cover, and reseat the RIMMs in their
sockets.
- Replace the computer cover, reconnect the system to an
electrical outlet, and turn it on.
- If the problem is not resolved, start the Dell Diagnostics and run the RAM
test group.
If the Dell Diagnostics identifies a
faulty RIMM, replace
that RIMM. If the Dell Diagnostics determines that the system board is faulty, or if
the Dell Diagnostics does not identify the cause of the problem and the problem is still
not resolved, see "Getting
Help" for instructions on obtaining technical assistance.
Troubleshooting video problems involves determining which of the
following is the source of the problem: the monitor, the monitor interface cable, or the
integrated video controller.
Before attempting to troubleshoot the integrated video controller,
perform the procedure in "Troubleshooting the Monitor" to determine
whether the monitor is the source of the problem.
If the monitor is not at fault, reinstall
the video drivers. Instructions on reinstalling the video drivers are provided in the documentation that accompanied your Dell ResourceCD. If reinstalling the video
drivers does not resolve the video problem, the integrated video controller may be faulty.
See "Getting Help" for instructions on obtaining technical assistance.
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, perform the following steps:
- Start the Dell Diagnostics and run the System Board
Devices test group.
If any of the tests fail, see "Getting Help" for instructions on obtaining technical
assistance.
- Turn off the system, including any attached peripherals, and
disconnect all the AC power cables from their electrical outlets. Also, disconnect any
telephone or telecommunication lines from the computer.
- Remove the computer cover.
- Verify that the power
cables from the power supply are firmly connected to the connectors on the system board.
- Replace the computer cover, reconnect the system to an electrical outlet, and turn it on. If
the problem is not resolved, proceed to step 6.
- Perform the procedure in "Troubleshooting Expansion Cards."
If the problem is not resolved, proceed to step 7.
- Perform the procedure
in "Troubleshooting the Keyboard."
- If the problem is still not resolved, see "Getting Help" for instructions on
obtaining technical assistance.
If the system cannot boot and you have exhausted all other
troubleshooting options, perform the following steps:
- Turn off the system, including any attached peripherals, and
disconnect all the AC power cables from their electrical outlets. Also, disconnect any
telephone or telecommunication lines from the computer.
- Remove the computer cover.
- Install a jumper plug on the RTCRST jumper pins and then remove it.
- Replace the computer cover,
reconnect the system to an electrical outlet, and turn on the system. If the problem is
not resolved, see "Getting
Help" for instructions on obtaining technical assistance.
If the monitor displays a
system error message to indicate a drive problem during execution of either the boot
routine or the Dell Diagnostics, or if a drive is not operating
correctly, perform the following steps:
- Enter System Setup, and verify that the problem
drive is configured correctly. Make any necessary changes, and reboot the system.
- If the problem is not resolved, turn off the system,
including any attached peripherals, and disconnect all the AC power cables from their
electrical outlets. Also, disconnect any telephone or telecommunication lines from the
computer.
- Remove the computer cover.
- Verify that the DC
power cables from the power supply are firmly connected to the connectors on each drive.
Also verify that the interface cable for each drive is firmly connected to the drive and
to the system board.
- Replace the computer cover, reconnect the system to an
electrical outlet, and turn it on. If the problem is not resolved, proceed to step 6.
- Start the
Dell Diagnostics and run the appropriate test
group.
If the Dell Diagnostics identifies a faulty drive, replace the drive. If the Dell
Diagnostics identifies a faulty controller, the system board may be faulty. See "Getting Help" for instructions on
obtaining technical assistance.
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