HP ProOne 400 G1 Maintenance & Service Manual page 84

10.
Remove the nine Torx screws that secure the system board to the computer.
11.
Remove the system board from the computer.
To install the system board, reverse the removal procedures.
Updating SMBIOS Information
When replacing the system board, you must reprogram the SMBIOS information on the affected
computer. Failure to reprogram the board will result in eventual failure, such as an activation failure
(need to reactivate the system) or a system recovery failure.
To update SMBIOS information in Computer Setup:
1. Turn on or restart the computer.
2. Press
the screen.
NOTE:
press
3. Press
74 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis
Esc while the "Press the ESC key for Startup Menu" message is displayed at the bottom of
If you do not press Esc
Esc when the monitor light turns green to access the utility.
F10 to enter Computer Setup.
at the appropriate time, you must restart the computer and again