5-40

Upgrades and Options
13. Align drive/carrier assembly so it engages the guide
rails in the bay.
14. Gently push the assembly into the bay until the drive
docks with the backplane connector and locks in
place.
15. Close the EMI metal panel, and secure with the two
thumbscrews.
16. Close the front exterior panel.
Removable Media Devices and Diskette Drives
A CD-ROM reader is always mounted in bay A. SCSI
removable media devices can be installed in periph eral
bays B and C. SCSI devices should be installed in the
first available bay from the top (bay A). Figur e 5-16
illustrates the recommended removable media
configuration. These bays are intende d to hold tape,
CD-ROM, or other removable media drive s. Narrow
SCSI drives in the 5 1/4-inch bays receiv e contro l
signals from a fast/wide SCSI-2 controller on the
system board (channel A).
Notice: The SCSI termination resistors must be
installed in the last SCSI drive of the daisy chain
cabling (top media bay A). All other devices must h ave
terminators removed.
Hard disk drives cannot be installed in a 5 1/4-inch
external bay because the drive gen erates EMI, is mo re
susceptible to ESD, and would not have sufficient
cooling.
A 1.44 MB diskette drive is always mounted in bay D.
A second device can be installed in bay E.