Dell OptiPlex 755 - Manual (Page 198)

Drive Problems
Ensure that Microsoft® Windows ® Recognizes the drive —
Windows XP:
l Click Start and click My Computer.
Windows Vista®:
l Click the Windows Vista Start button and click Computer.
If 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 —
l Insert another disc to eliminate the possibility that the original drive is defective.
l Insert a bootable floppy disk and restart the computer.
Clean the drive or disk —
See Cleaning Your Computer .
Check the cable connections
Run the Hardware Troubleshooter —
See Troubleshooting Software and Hardware Problems in the Microsoft® Windows® XP and Microsoft Windows Vista® Operating Systems .
Run the Dell Diagnostics —
See Dell Diagnostics .
Optical drive problems
Adjust the Windows volume control —
l Click the speaker icon in the lower-right corner of your screen.
l Ensure that the volume is turned up by clicking the slidebar and dragging it up.
l Ensure that the sound is not muted by clicking any boxes that are checked.
Check the speakers and subwoofer —
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.
NOTE: High-speed optical drive vibration is normal and may cause noise, which does not indicate a defect in the drive or the media.
NOTE: Because of different regions worldwide and different disc formats, not all DVD titles work in all DVD drives.