IBM NETVISTA 2251 - Manual (Page 31)

gently pry the static shield loose from the drive bay.
3. Install the drive into the bay. Align the screw holes and insert the two screws.
4. Connect the power and signal cables to the drive.
CD-ROM drive jumper settings
CD-ROM and PC/CD-ROM drives use jumpers or tabs to set the drives as primary
(master) or secondary (slave). Refer to the drive connector labels or the figures
Chapter 4. Installing Options 23