[TriLUG] Hardware stability issues

[David Both via TriLUG]

Swap the PSUs. See if the problem moves. 

On October 30, 2021 5:42:47 PM EDT, Wes Garrison via TriLUG <trilug at trilug.org> wrote:
>Dear LUGgers,
>
>My children and I have built nearly-identical desktop machines, and only
>one of them is experiencing seemingly-random hard-locks (requiring 4-second
>power button press to turn off).
>
>Both machines are:
>AMD Ryzen 5 5600G processors with built-in Radeon Graphics
>MSI B550M-Pro socket AM4 micro-ATX motherboards
>32GB Crucial Ballistix RAM
>Debian 11
>
>The only obvious difference is the power supply.  My daughter's computer
>has an Antec 400W PSU, and my son's has a BFG 550W PSU.  My son's is the
>one experiencing the hard-locks.
>
>I'm currently running a memtest86 on the machine, but in my experience it's
>almost never a RAM or processor problem.
>
>Do any of you have a great way of isolating frustrating problems like this?
>
>I *hate* throwing hardware at a problem trying to troubleshoot.
>
>What would your first steps be?  Swap the RAM between the 2 machines?  Is
>there any reliable way to test PSU voltage stability?
>
>Any insight is greatly appreciated!
>
>-Wes
>-- 
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