Specifications

HP ProDesk 400 G2 system board callouts
Sys Bd Label Sys Bd
Connector
Color Component Sys Bd Label Sys Bd
Connector
Color Component
COMB Serial Port Black Optional second
serial port
BAT Battery
socket
Black RTC battery
PWRCPU Processor
power
connector
White 4-pin processor
power
MEDIA External
media
connector
Black External media
device
Processor Processor
socket
Silver Processor FRONT USB not used Blue not used
CMOS CMOS button Yellow Reset CMOS SPKR Speaker
connector
White Speaker
CPUFAN Processor fan
connector
White Processor fan FRONT AUD Front I/O Blue Front I/O/power
switch
DIMM3 DIMM3
(Channel B)
White Memory module X1PCIEXP3 PCI Express x1 Black Expansion card
DIMM1 DIMM1
(Channel A)
White Memory module X1PCIEXP2 PCI Express x1 Black Expansion card
68 Chapter 5 Removal and replacement procedures: Microtower