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Technical Reference Guide
7.4 SIGNAL DISTRIBUTION
Figure 7-5 shows general signal distribution between the main subassemblies of the system units.
Chassis
Fan
CPU Fan
OTES:
d d325 models unless otherwise indicated.
odels only.
PCI NIC
Card
Serial
Conn.
TX Data,
RX Data
PCI
Bus
Fan
PWR
Fan
PWR
Power On/Off
Power On
HD Activity
System
Board
PCI Slot
SYS
FAN
Conn.
CPU
FAN
Conn.
Serial
Header
Pwr Btn, Pwr/HD LED
F_P Conn.
12.8 Vcpu
JPW1 Conn.
Power
Supply
Assembly
3/5/12 VDC, 5AUX
JRW1
Conn.
PS On
Fan CMD
PWR_FAN
Conn.
Fan Sink
IDE
Data, Cntl
5, 12 VDC
Pri.
IDE Conn.
IDE
Hard Drive
CD-ROM
IDE I/F
Sec.
IDE Conn.
5, 12 VDC
L/R Audio
CD1
Conn.
Diskette Drive
Dskt.
Data, Cntl
5, 12 VDC
FDD1
Conn.
Mouse
Kybd.
Conn.
Mouse
Keyboard
Spkr Audio
Spkr Conn.
S
Headphones/
pkr Audio
Front Panel
Audio/USB
I/O Bd.
Assembly
Audio 1
Conn.
Microphone In
USB Data
PCI Slot Exp.
Edge Connector
USB 4/5
Conn.
N
Applies to both D315 an
D315 models only.
d325 m
igure 7-5. Signal Distribution Diagram F
Compaq D315 and hp d325 Personal Computers
Featuring the AMD Athlon XP Processor
Second Edition - April 2003
7-9