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1-4 System Overview
Expanding the Server as Needs Grow
A typical minimum system configuration may include the following:
board set consisting of system I/O board, CPU base board with a
Pentium
II Xeon processor, and a memory board
diskette drive and SCSI CD-ROM drive
three SCSI hard drive cages with one hard drive and a RAID controller
installed
network add-in boards
two 420 watt power supplies (an optional third power supply provides
redundant power)
onboard 2 MB video memory
system I/O board has two ISA slots and nine PCI slots for add-in boards.
The system I/O board also has a riser board for external I/O (serial,
parallel, video) interfaces.
chassis can hold six removable media drives: four 5 1/4-inch half-height
bays with a CD-ROM drive installed in one bay; and two 3 1/2-inch half-
height bays with a diskette drive installed.
As server/client needs grow, you can expand system processor capacity,
memory, drives, option boards, and the number of power supplies.
CPU base board has four slots for CPUs, for a configurable range of one,
two, three, or four processors.
Memory board supports 16 DIMM devices for up to a maximum memory
size of 4 GB.
System I/O board has eleven option board slots (two ISA and nine PCI).
Chassis can hold six removable media drives.
Three SCSI hard drive cages support up to 12 hot-swap bays for 3 1/2-
inch ultra wide SCSI-2 hard drives.
Configuration Constraints
The system has four 5 1/4-inch half-height bays accessible from the front. These
bays are convenient for diskette, tape, and CD-ROM drives (removable media).
Because of the EMI generated by hard drives, the increased susceptibility to
ESD, and cooling requirements, hard drives should not be installed in the 5 1/4-
inch half-height bays.