System board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
X4PCIEXP White Expansion card PWR White 6-pin main power
X1PCIEXP2 Black Expansion card SPKR White Speaker
X1PCIEXP1 Black Expansion card FRONT USB3.0 Blue Front I/O/power switch
X16PCIEXP White Expansion card SD RDR Black Card reader
COMB Black Optional second serial
port
EXT Black Extension board
HLCK Black Hood lock SATA3 Light blue Any SATA Device other
than the primary hard
drive
PWRCPU White 4-pin processor power SATA0 Dark blue Primary hard drive
System board 73
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