System Board - HP EliteDesk 405 G4 Desktop Mini Maintenance And Service Manual

System board

NOTE: All system board spare part kits include replacement thermal material.
NOTE: System board appearance may vary.
1. Prepare the computer for disassembly
2. Remove the access panel
3. In models with a hard drive, remove the hard drive
on page
4. Remove the fan
5. Remove the heat sink
6. When replacing the system board, make sure the following components are removed from the defective
system board and installed on the replacement system board (as applicable):
● Memory modules
● M.2 solid-state drive
● Processor
WLAN module
●
Expansion connector board
●
7. To remove the system board:
a. On models with a hard drive, disconnect the speaker cable from the system board (1), and then
remove the three Torx T15 screws (2) that secure the system board to the computer.
(Access panel on page
23.
(Fan on page 35).
(Heat sink on page
(Memory modules on page
(M.2 PCIe solid state drive (SSD) on page
(Processor on page
(WLAN module on page
(Preparation for disassembly on page
17).
(Hard drive on page
36).
31)
38)
26)
(Expansion connector board on page
16).
21) and drive cage Drive cage
24)
30)
System board 39