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Designator
P22
P23
P24
P25 - P26
P27
P29
P30
P31
P50
P52
P53
P54
P55
P58
P64
P65
P70
P71
P89
P100
P101
P120
P124
P125
P216
SW1
SW2
SW50
SW51
SW52
U15
U100
XBT1
XMM1
XMM2 - XMM5
XU1
XU2
XU15
XU100
Y1
Y2
Y3
Y4
Y5
Service Reference Guide, d500
Component (Continued)
Slimline CD-ROM connector
Header for front audio panel
Header for front panel USB
Video memory upgrade connector
MultiBay header
SCSI LED connector
Primary serial ATA (SATA) port
Secondary serial ATA (SATA) port
Serial debug header
Serial port header
First serial port
Second serial port
Double stack serial port
Top
Serial B
Bottom
Serial A
Riser edge connector (male-mates with J30)
VSFF expansion connector
Graphics option connector
Primary (CPU) fan header for fansink
Secondary CPU fan header for fansink
Floating serial port /COM port header
ITP connector
Security card connector, system board
Secondary chassis fan header
Hood lock header
Hood sensor header
White box chassis fan
Processor speed switch
Security hood switch
Clear CMOS switch/push button
Power button switch
System reset switch
ROM chip
Security chip
Battery socket
Memory slot. DIMM1 or RIMM1 populated and tested
Following memory slots
Primary processor socket
Secondary processor socket
ROM socket
Security chip socket
Primary (TH) system clock crystal
Secondary (SMT) system clock crystal
Primary (YTH) NIC clock crystal
Secondary (SMT) NIC clock crystal
RTC clock crystal/tie-down
336492-003
E–3
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