Dell OptiPlex 745c, User Manual

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Drive Problems
Fill out the Diagnostics Checklist as you complete these checks.
Optical drive problems
computer cover (see the appropriate "Removing the Computer Cover" section).
2. Ensure that each card is firmly seated in its connector. Reseat any loose cards.
3. Ensure that all cables are firmly connected to their corresponding connectors on the cards. If any cables appear loose, reconnect
them.
For instructions on which cables should be attached to specific connectors on a card, see the card's documentation.
4. Close the computer cover reconnect the computer and devices to electrical outlets, and then turn them on (see Replacing the
Computer Cover ).
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 the appropriate "Removing the Computer Cover" section).
2. Remove all cards except the graphics card. See the appropriate "Cards" section for your computer.
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 Replacing the Computer Cover ), reconnect the computer and devices to electrical outlets, and then
turn them on.
4. Run the Dell Diagnostics. See Dell Diagnostics .
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 the appropriate "Removing the Computer Cover" section for your computer).
2. Reinstall one of the cards that you removed previously. See see appropriate "Cards" section for your computer.
3. Close the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on (see Replacing the
Computer Cover ).
4. Run the Dell Diagnostics. See Dell Diagnostics .
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.
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.
Test the drive —
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Insert another floppy disk, CD, or DVD to eliminate the possibility that the original one is defective.
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Insert bootable media and restart the computer.
Clean the drive or disk — See Cleaning Your Computer .
Check the cable connections
Check for Software and Hardware Conflicts — See Resolving Software and Hardware Incompatibilities .
Run the Dell Diagnostics — See Dell Diagnostics .
NOTE: High-speed Cd or DVD drive vibration is normal and may cause noise, which does not indicate a defect in the drive or the CD or DVD.