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