System expansions
Installing and removing drives
The system unit houses a total of four accessible drives (three 5 1/4-inch drives and one 3 1/2-inch
drive) and two non-accessible half-height (Slimline) drives .
IDE drives
By default four IDE drives are supported. Ideally hard disks are connected to IDE port 1, and
accessible drives, for example CD-ROMs, to IDE port 2 (see also the Technical Manual for the
system board).
SCSI drives
If you want to install an SCSI drive, you require an SCSI controller and an SCSI cable. Note that:
•
not every SCSI controller is suitable for operating SCSI hard disks
•
each SCSI device must be assigned its own SCSI-ID
•
The SCSI cable must always be terminated at the end, either by a drive or by a terminating
resistor on the cable. The terminating resistors of all other SCSI devices attached must not be
activated or connected.
•
Depending on the SCSI technology (UW, U2W), an adapter may be required for terminating the
SCSI drives with a 50-pin connector.
Installing an accessible drive
²
Open the system unit (see
²
Pry the plastic drive cover (A) out of the front cover.
²
Pry the shielding plate (B) on left-hand side out of the bay.
Do not throw away the covers. If you remove the drive again later, you will have to
!
reinstall the covers.
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"Opening the system
2
1
Installing and removing drives
unit").
B
A
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