Card Fan Problems; Drive Problems - Dell Precision 490 Desktop User Manual

Test the graphics card —
1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then remove the
computer cover (see Removing the Computer
2. Remove all cards except the graphics card. See Cards.
If your primary hard drive is connected to a drive controller card and not to one of the system board IDE connectors, leave the drive
controller card installed in the computer.
3. Close the computer cover (see
turn them on.
4. Run the Dell Diagnostics. See
Test the cards —
1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then remove the
computer cover (see Removing the Computer
2. Reinstall one of the cards that you removed previously. See Cards.
3. Close the computer cover (see
turn them on.
4. Run the Dell Diagnostics. See
If any of the tests fail, the card you just reinstalled is faulty and needs to be replaced.
5. Repeat this process until you have reinstalled all cards.
Card Fan Problems
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 opening 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.
Check the cable connections —
System Board Components).
Drive Problems
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 opening 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.
Fill out the Diagnostics Checklist as you complete these checks.
Ensure that Microsoft® Windows® recognizes the drive —
is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from
recognizing the drive.
Test the drive —
Insert another floppy disk, CD, or DVD to eliminate the possibility that the original one is defective.
l
Insert a bootable floppy disk and restart the computer.
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Clean the drive or disk — See Cleaning Your
Check the cable connections
Cover)
Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and then
Dell Diagnostics.
Cover).
Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and then
Dell Diagnostics.
Make sure the card fan cable is connected firmly to the card fan connector on the system board (see
Click the Start button and click My Computer. If the floppy, CD, or DVD drive,
Computer.