System board callouts
Sys Bd Label
Color
Component
Sys Bd Label
Color
Component
DISPLAY
Black
Display connector
PWR
White
Main power
WLAN
Black
WLAN module
SATA1
Dark blue
Second hard drive
CPU
Black
Processor socket
SATAPWR0
White
Hard drive power
XMM3
Black
Memory module
SATA2
Light blue
Hard drive
XMM1
Black
Memory module
CPUFAN
White
Fan connector
XBT1
Black
RTC battery
CHFAN
Black
Fan connector
CMOS
Yellow
Reset CMOS
EXT
Black
PS2/serial board
SPKR
Black
Speaker
LVDS
Black
Display connector
SSD
Black
M.2 SSD drive
2DWCAM
White
Webcam connector
PSWD
Green
Clear system passwords
42
Chapter 4 Removal and Replacement Procedures