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Internal Components: Dell Precision WorkStation 220 System User's Guide
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Internal Components: Dell Precision™ WorkStation 220 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 Precision ResourceCD
- A small flat-blade screwdriver and a #1 Phillips-head screwdriver (or
quarter-inch hex-nut driver)
Your system also includes an interior system service label affixed
to the inside of the computer cover (see Figure 1
and Figure 2 for the location of this label on the
mini tower and desktop chassis, respectively). Refer to this label for the location of
system board components and connectors while troubleshooting your system.
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Left side cover |
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Inside of cover |
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.
- If you have a mini tower chassis, remove the accelerated graphics
port (AGP) card brace according to the instructions in "Removing and Replacing the AGP Card Brace."
- 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 7. 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 5.
- If you have a mini tower chassis, replace the AGP card brace.
- Replace the computer
cover, and reconnect the system to an electrical outlet. Also, reconnect any telephone or
telecommunication lines to the computer.
- Insert the Dell Precision ResourceCD into the
CD-ROM drive, reboot the system, and run the System Board Devices test
group in the Dell Diagnostics.
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, and reseat any loose
expansion cards.
- 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.
- Insert the Dell Precision ResourceCD into the
CD-ROM drive, and reboot the system.
- Run the System Board Devices test group in
the Dell Diagnostics.
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.
- If you have a mini tower chassis, remove the AGP card brace according
to the instructions in "Removing and Replacing
the AGP Card Brace."
- Reseat the battery in its socket with
the side labeled "+" facing up.
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.
- Insert the Dell Precision ResourceCD into the
CD-ROM drive, reboot the system, and run the RAM test group in the Dell Diagnostics.
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, and
reseat the RIMMs in their sockets.
To reseat a RIMM, you need to rotate the power
supply out of the way.
- If the problem is not resolved, insert the Dell
Precision ResourceCD into the CD-ROM drive, reboot the system, and run the RAM
test group in the Dell Diagnostics.
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
video card.
Before attempting to troubleshoot the video subsystem, perform the
procedure found in "Troubleshooting
the Monitor" to determine whether or not the monitor is the source of the
problem.
If the monitor is not at
fault, perform the following steps:
- Check the monitor cable connections as indicated in "Checking Connections and Switches."
- If the problem is not resolved, see your video card
documentation for further troubleshooting instructions.
If any of the tests fail, 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:
- Insert the Dell Precision ResourceCD into the
CD-ROM drive, and reboot the system. Run the System Board Devices test
group in the Dell Diagnostics.
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."
- Perform the procedure in "Troubleshooting
a Dead System Board With the RTCRST Jumper."
- 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.
- If you have a mini tower chassis, remove the AGP card brace according
to the instructions in "Removing and Replacing
the AGP Card Brace."
- Install a jumper plug on the RTCRST jumper pins
and then remove it.
- Replace the AGP card brace, 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.
- Insert the Dell Precision ResourceCD into the
CD-ROM drive, reboot the system, and run the appropriate test group in the Dell Diagnostics.
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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