HP ProDesk 400 G1 Maintenance And Service Manual page 55

13. Lift the left side of the system board, and then remove it from the computer (2).
To install the system board, reverse the removal procedures.
NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
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 Esc while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the
screen.
NOTE: If you do not press
Esc when the monitor light turns green to access the utility.
3. Press F10 to enter Computer Setup.
4. Go to Security > System ID's.
Esc at the appropriate time, you must restart the computer and again press
System board 47