System board callouts

Sys Bd Label

Sys Bd

Color

Component

Sys Bd Label

Sys Bd

Color

Component

 

Connector

 

 

 

Connector

 

 

 

 

 

 

 

 

 

 

CHFAN2

Chassis fan

Red

Fan

SPKR

Speaker

White

Speaker

 

connector

 

 

 

connector

 

 

 

 

 

 

 

 

 

 

HSENSE

Hood sensor

White

Hood sensor

FRONT USB

Front I/O

Yellow

Front I/O

 

connector

 

 

 

connector

 

 

 

 

 

 

 

 

 

 

PWRCPU

Processor

White

4-pin processor

CMOS

CMOS button

Yellow

Reset CMOS

 

power

 

power

 

 

 

 

 

connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XU1

Processor

Green

Processor

BAT

Battery

Black

RTC battery

 

 

 

(soldered on)

 

socket

 

 

 

 

 

 

 

 

 

 

CPUFAN

Processor fan

White

Processor fan

FRONT AUD

Front I/O

Blue

Front I/O

 

connector

 

 

 

connector

 

 

 

 

 

 

 

 

 

 

DIMM4

DIMM4

White

Memory module

X4PCIEXP

PCI Express

Black

Expansion card

 

(Channel A)

 

 

 

x16

 

 

 

 

 

 

 

downshifted

 

 

 

 

 

 

 

to x4

 

 

 

 

 

 

 

 

 

 

DIMM3

DIMM3

Black

Memory module

X1PCIEXP2

PCI Express x1

Black

Expansion card

 

(Channel A)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

118 Chapter 5 Removal and replacement procedures – small form factor (SFF) chassis