System board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
X1PCIEXP3 Black Expansion card PWRCMD White Power supply
X1PCIEXP2 Black Expansion card SATAPWR0 Black Drives
X1PCIEXP1 Black Expansion card PWR White 6-pin main power
X16PCIEXP White Expansion card SPKR White Speaker
COMB Black Optional second serial
port
FRONT USB3.0 Blue Front I/O/power switch
HLCK Black Hood lock SD RDR Black Card reader
CHFAN2 Black Rear fan connector SATA0 Dark blue Hard drive
PWRCPU White 4-pin processor power SATA1 Light blue Any SATA Device other
than the primary hard
drive
60 Chapter 4 Removal and replacement procedures: Small Form Factor
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