IBM PS/2 90 XP 486 Hardware Maintenance Reference page 36

IBM PS/2 Model 90 XP 486 and 95 XP 486 HMR
SCSI Hard Disk Drives and Devices
3.2 SCSI Hard Disk Drives and Devices
The systems are shipped with at least one Small Computer System Interface
(SCSI) hard disk drive and a SCSI adapter. Up to three (Model 90) or five
(Model 95) SCSI internal devices can be installed inside the system (all
attached to the same SCSI adapter). The default hard disk drive has the
IML image preloaded in a protected partition. Up to three additional SCSI
adapters can be installed in the system. Each additional SCSI adapter can
support up to seven external SCSI devices.
The hard disk drives automatically position and lock the read/write heads
in nondata areas when the system is powered-off.
¦ Copyright IBM Corp. 1990, 1992
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