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usam
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3.4 beeps in all in one business pc

HP Recommended
hp all in one pc
Microsoft Windows 10 (64-bit)

The system board displays a power failure (crowbar).* 3.4 beeps.replaced the new motherboard still facing same issue.same issue found in 6 nos pall in one pc

 

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Lil_Boy_Blue
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HP Recommended

Hi

Just to be sure...

You get a LONG (MAJOR) signal category, RED LED &

then a SHORT (MINOR) signal category, WHITE LED.

Major – the category of the error; Minor – specific error in that category

The AUDIBLE repeats 5 times, and the VISUAL until power is removed.

 

Hardware

3.4

The Main-Board displays a power failure (crowbar).*

 

Indicates potential power system failure.

1 Reduce to minimum config (CPU, Main-Board, PSU,

Single memory DIMM) and isolate failed component.

2 Reduce further if issue persists.

3 Test known good PSU.

4 Replace affected component.

5 If unable to confirm source, replace CPU, Main-Board, PSU.

 

So you eliminated the PSU and CPU? The memory module also passed?

 

 

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