Service Reference Guide

Service Reference Guide G–3
System Board and Riser Board Reference Designators
P20
P21
P22
P23
P24
Primary IDE connector
Secondary IDE (Multibay) connector
Slimline CD-ROM connector
Header for front audio panel
Header for front panel USB
P25 - P26
P27
P29
P30
P31
P52
P53
P54
Video memory upgrade connector
MultiBay header
SCSI LED connector
Primary serial ATA port
Secondary serial ATA port
Serial port header
First serial port
Second serial port
P55
P58
P70
P70
P70
Double stack serial port
Top Serial B
Bottom Serial A
Riser edge connector (male-mates with J30)
Primary chassis fan header (xw6000 Configuration 1)
Primary CPU fan header (xw6000 Configuration 2)
CPU fan header (xw4000)
P71
P71
P89
P100
P101
P120
P124
Secondary chassis fan header (xw6000 Configuration 1)
Secondary CPU fan header (xw6000 Configuration 2)
Floating serial port /COM port header
ITP connector
Security card connector
Front chassis fan header (xw6000)
Hood lock header
P125
P216
SW1
SW2
SW50
Hood sensor header
White box chassis fan
Processor speed switch
Security hood switch
Clear CMOS switch
SW51
XBT1
XMM1
XMM2 - XMM5
XU1
Power button switch
Battery socket
Memory slot. DIMM1 or RIMM1 populated and tested
Following memory slots
Primary processor socket
XU2
XU15
Secondary processor socket
ROM socket
Designator Component (Continued)