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- HP ProDesk 400 G4 beeps 5.7 after start

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06-11-2024 04:11 AM
Product: HP ProDesk 400 G4 Desktop Mini PC
Operating System: Microsoft Windows 10 (64-bit)
Hello everyone,
I have had an HP ProDesk 400 G4 Desktop Mini PC for several years.
Now I have the following problem. After turning on the power, the PC beeps five times long and seven times short.
At the same time, the LED flashes red five times and white seven times and the PC does not start.
Could you please advise what the problem is? I can't find this error code anywhere.
Thank you very much for your reply.
Jiri Vodehnal
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