NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
System board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
X1PCIEXP3 Black Expansion card SATA3 Light blue Any SATA Device other
than the primary hard
drive
X1PCIEXP2 Black Expansion card SATA2 Light blue Any SATA Device other
than the primary hard
drive
X1PCIEXP1 Black Expansion card CMOS Yellow Reset CMOS
X16PCIEXP Black Expansion card BAT Black RTC battery
COMA Black Optional serial port WIRELESS Black WLAN module
CHFAN2 Brown Rear fan connector SSD1 Black M.2 solid-state drive
COMM_DP Black Flex port module USBCDEG White USB-Type C
PROCESSOR Silver Processor SATAPWR1 Black Drive power
PWRCPU White 4-pin processor power PWRCMD White Power supply
System board 63
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