System board callouts
Sys Bd Label
Color
Component
Sys Bd Label
Color
Component
NTDP1
Black
Display connector
DIMM1
Black
Memory module
NTDP2
Black
Display connector
WLAN
Black
WLAN module
XU1
Black
Processor socket
BAT
Black
RTC battery
CMOS
Yellow
Reset CMOS
PSWD
Black
Clear system passwords
SPKR
Black
Speaker
CHFAN
Black
Fan connector
CPUFAN
White
Fan connector
SSD
Black
M.2 SSD drive
DIMM3
Black
Memory module
SATA0
Dark blue
Hard drive
44
Chapter 4 Removal and replacement procedures