System board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
CPUFAN White Fan connector SPKR White Speaker connector
DIMM2 Black Secondary memory
socket
X1PCIEXP11 Black WLAN module socket
CMOS Yellow CMOS reset button M.2 Black Solid-state drive socket
DIMM1 Black Primary memory socket PSWD Black/blue Password header and
jumper
BAT Black RTC battery SATA1 Black Hard drive data
connector
42 Chapter 4 Removal and replacement procedures
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