User's Guide

1-8 System Overview
System Board Features
The system board offers a “flat” design with the processor and memory subsystems
residing on the board. This figure shows the major components on the system board.
The following subsections describe the system board major components.
A
– Primary processor connector
R
– Internal SCSI HDD bay connector
B
– Not used
S
– Not used
C
– Secondary processor connector
T
– Jumper block
D
– Memory DIMM slots
U
– Lithium backup battery
E
– Secondary VRM
V
– 64 bit, 66 MHz PCI slots for add-in boards
F
– Not used
W
– 64 bit, 33 MHz PCI slot for add-in board
G
– Not used
X
– 32 bit, 33 MHz PCI slots for add-in boards
H
– Power on/off switch connector
Y
– PCI/ISA shared slot for add-in board
I
– Not used
Z
– Fan connectors (Fan1, Fan2)
J
– Main power connector
AA
– LAN RJ-45 network controller connector
K
– Reset switch connector
BB
– SVGA monitor port connector
L
– Speaker connector
CC
– Parallel port connector
M
– Diskette drive connector
DD
– Mouse PS/2 compatible connector
N
– IDE connector
EE
– Keyboard PS/2 compatible connector
O
– Fan3 connector
FF
– Not used
P
– External SCSI and media bays connector
GG
– Serial port connectors (top COM 1, bottom COM2)
Q
– Fan4 connector
HH
– USB connectors (top USB 1, bottom USB 2)
System Board