>>Problem: CD-ROM does not work:

Potential causes: 

i). Improper jumper setting.

ii). Dirty lens of CR-ROM drives.

iii). Driver software is not installed properly.

iv). Improper cable connection between hard disk and CD-ROM.

v). Power cable connection is not properly.

vi). CD-ROM drive is defective.

Solutions:

i). Set the jumper setting properly ( see on the front panel of CD

ii). ROM casing)

iii). Clean the CD ROM  drive by head cleaner.

iv). Install the CD ROM driver software

v). Connect cable properly.

vi). Connect power cable properly.