Installed IDE CD-ROM drive does not work due to loose CD-ROM controller card.
Cause:
The CD-ROM drive controller card is loose.
Solution:
Push down on the card to re-seat controller card into its expansion slot. Replace the computer cover, connect all power cords, and turn the computer on.
WARNING: Electrical shock hazard! Make sure the power is turned off and the external power cables have been disconnected before removing the computer cover.
CAUTION 1: This task should be performed by a qualified computer technician.
CAUTION 2: Please observe steps to reduce the potential damage to computer components from electrostatic discharge.
1) Remove the computer cover.
2) Using even pressure on the IDE controller card, gently press down on the expansion card to securely seat the card into the expansion slot.
CAUTION: Keep the card vertical while inserting it into an expansion, and be careful not to bend the CD-ROM drive controller card. Bending the CD-ROM drive controller card can damage the circuitry.
3) Replace the computer cover, and reconnect the power cord to the computer.
4) Turn on the computer.