HP ProDesk 400 G3 MT Business PC HP ProDesk 480 G3 MT Business PC HP ProDesk 490 G3 MT Business PC - Maintenance and Service Guide

HP ProDesk 490 G3 system board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
PWRCPU White Processor power PSWD Green Clear system passwords
XU1 Silver Processor SATA1 Light blue Optical Drive
CPUFAN White Processor fan SATA0 Dark blue Hard drive
XMM4 White Memory module
(Channel B)
CMOS Yellow Reset CMOS
XMM3 Black Memory module
(Channel A)
BAT Black RTC battery
XMM2 White Memory module
(Channel B)
SPKR White Speaker
XMM1 Black Memory module
(Channel A)
FRONT_AUD Blue Front I/O
PB/LED Black Power switch X4PCIEXP White Expansion card
PWR White 24-pin main power
connector
X1PCIEXP2 Black Expansion card
COMB Black Optional serial port X1PCIEXP1 Black Expansion card
FRONT USB3.0 Blue Front I/O X16PCIEXP White Expansion card
SD RDR Black SD card reader DISPLAY White Optional DisplayPort
connector
SATA2 Light blue Optional SATA drive CHFAN2 Red Chassis fan
66 Chapter 4 Removal and replacement procedures: Microtower