System Board Callouts - HP 280 G4 Maintenance And Service Manual

NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS.
IMPORTANT:

System board callouts

Table 4-1 System board callouts
Item Sys Bd Label
1 ODD_PWR
2 SATA2
3 SATA0
4 PWR
5 PWRCMD
6 SATA1
7 CLR_CMOS/
PSWD
8 PCIE_X16
9 PCIE_X1
10 COM HEADER
38 Chapter 4 Removal and replacement procedures
When reconnecting the cables, be sure that they are positioned correctly.
Component
Optical drive power
Optical drive
Hard drive
Power supply
Power supply
Hard drive
CMOS/password reset
Expansion card
Expansion card
Option board
Item Sys Bd Label Component
11 SYS_FAN System fan
12 PWRCPU Power supply
13 PROCESSOR Processor socket
14 CPU_FAN Fan sink
15 DIMM2 Memory module
16 DIMM1 Memory module
17 SATA_POWER Drive power
18 M2_WIFI WLAN module
19 M2_2280 Solid-state drive (M.2)
20 BAT RTC battery