Dell OptiPlex 740 - Manual (Page 187)

Drive Problems
Fill out the Diagnostics Checklist as you complete these checks.
CD and DVD drive problems
turn them on.
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 Cover for mini tower computers, or Removing the Computer Cover for desktop
computers).
2. Remove all cards except the graphics card (see PCI, PCI Express Cards, and PS/2 Serial Port Adapters for mini tower computers, or
Removing a PCI Card for desktop computers).
If your primary hard drive is connected to a drive controller card 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 Removing the Computer Cover for mini tower computers, or Removing the Computer Cover for desktop
computers).
2. Reinstall one of the cards that you removed previously (see PCI, PCI Express Cards, and PS/2 Serial Port Adapters for mini tower
computers, or Installing a PCI Card for desktop computers).
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 ).
5. If any of the tests fail, the card you just reinstalled is faulty and needs to be replaced.
6. 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 —
l Insert another floppy disk, CD, or DVD to eliminate the possibility that the original one is defective.
l Insert bootable media and restart the computer.
Clean the drive or disk — See CDs and DVDs .
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.
NOTE: Because of different regions worldwide and different disc formats, not all DVD titles work in all DVD drives.
Adjust the Windows volume control —