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‎02-24-2023 01:35 PM

HP Recommended

I am trying to upgrade the power supply in my ProDesk 400 G3 to add a graphics card.  I purchased a standard 400W ATX power supply.  The motherboard connectors appear to be standard ATX and everything plugs in without an issue.  When I power it on, I get a beep error code for power.  Do these machines not use standard ATX power pins and just have similar connectors or do I have a bad power supply?

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1 REPLY 1

‎02-24-2023 02:54 PM

HP Recommended

@centuri,

 

Welcome to our HP User Forum!

 

You are correct: to the best of my knowledge an industry standard ATX power supply should work:

 

NonSequitur777_0-1677275598677.png

 

Kind Regards,

 

NonSequitur777


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