Motherboard Pinout
Data
Appendix
c
Figure
C-l
is
a layout drawing of the computer motherboard. It identifies
all
motherboard connec-
tors
and
shows every pin
and
its
corresponding signal name. Table
C-l
lists
every motherboard
connector
and
its
usage. Table C-2 alphanumerically
lists
all
the signal names used
on
the mother-
board
and
provides their definitions.
Table
C-l.
Motherboard Connectors
Designator Connecting Assembly
PI
Processor Stack
P2 Processor Stack
P3 Power
Supply
P4
Power Supply
P5 Power Supply
P6
Power Supply
P7
Power
Supply
P8 Power Supply
P9
System Control Module
PIO System Control Module
PII
110
Backplane
PI2
lOP Finstrate
PI3
Power Supply Fan,
110
Fan
PI4
Processor Stack Fan
PI5
Processor Stack Door,
110
Door
PI6
(Not Used)
PI7
Uninterruptible Power Supply
PI8
Mass Storage Device
C-l
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