What POST codes indicate a system board failure?

POST error message '103-System Board Failure' indicates DMA, timers may not be functioning correctly. Follow recommended actions including clearing CMOS memory and replacing the system board if necessary.

From the official HP Elitedesk 800 G1 Small Form Factor PC manual, page 2

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What does error code 103 mean on HP EliteDesk 800 G1?
POST error message '103-System Board Failure' indicates DMA, timers may not be functioning correctly. Follow recommended actions including clearing CMOS memory and replacing the system board if necessary.
How do I fix a system board failure error on my EliteDesk?
POST error message '103-System Board Failure' indicates DMA, timers may not be functioning correctly. Follow recommended actions including clearing CMOS memory and replacing the system board if necessary.
What should I do if my EliteDesk shows POST code 103?
POST error message '103-System Board Failure' indicates DMA, timers may not be functioning correctly. Follow recommended actions including clearing CMOS memory and replacing the system board if necessary.
Which components are affected by the 103-System Board Failure error?
POST error message '103-System Board Failure' indicates DMA, timers may not be functioning correctly. Follow recommended actions including clearing CMOS memory and replacing the system board if necessary.

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