Table 5–5 provides the memory requirements and recommendations for each
operating system.
Table 5–5 Operating System Memory Requirements
Operating System Memory Requirements
Digital UNIX and
OpenVMS
32 MB minimum; 64 MB recommended
Windows NT 16 MB minimum; 32 MB recommended
Windows NT Server 32 MB minimum; 64 MB recommended
Figure 5–4 Memory Layout on the Motherboard
Bank 3
Bank 2
Bank 1
Bank 0
ECC Banks
MA00327
SIMM 3
SIMM 2
SIMM 1
SIMM 0
ECC SIMM for Bank 2
ECC SIMM for Bank 0
ECC SIMM for Bank 3
ECC SIMM for Bank 1
SIMM 3
SIMM 2
SIMM 1
SIMM 0
SIMM 3
SIMM 2
SIMM 1
SIMM 0
SIMM 3
SIMM 2
SIMM 1
SIMM 0
5.3 Motherboard
The motherboard provides a standard set of I/O functions:
• A Fast Wide SCSI controller chip (Qlogic 1020A) that supports up to 7 Fast
Wide SCSI drives
• The firmware console subsystem on 1 MB of Flash ROM
• A floppy drive controller
System Configuration and Setup 5–25
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