Unknown beep code HP Pavilion Power 580-xx, Mainboard Basswood 8399

[Ohle]

Hello,

two days ago we had a blackout in our street for almost 2 hours. My Computer was on, but afterwards impossible to start again.

The Fans were running,but the screen keeps black. After a "lost" jumper replacement in default, i got this beep code:

2 long, 2 short, 1 long, repeated five times, although the last time without the fifth beep.

I found a lot of Beep Code explanations, but not this one, so please give me a hint!

I changed the video card, the power supply, the RAM etc. no recovery. I still hope for a corrupted BIOS or so, the motherboard would be the worst case....

Ohle

[itsmyname]

@Ohle -- there are many "beep-codes" listed at: HP and Compaq Desktop PCs - BIOS Beep Codes | HP® Customer Support

Can you match your computer's "beeps" to anything on that web-page?

[Ohle]

Thx for the suggestion,

if i recognize the first two beeps as a BIOS failure followed by the two short and a long one, it could be this:

Unable to initialize video or video card required but not installed, which would be a motherboard issue or a BIOS problem?

I tried also the Windows+B "trick" and a different video card, without any success.

[itsmyname]

@Ohle -- Unable to initialize video or video card required but not installed, which would be a motherboard issue or a BIOS problem?

As the message suggests, can you experimentally add-in a PCI-E video-card, which should "bypass" the integrated-video (and any problem with that circuitry) ?

[Ohle]

The motherboard (Basswood) has no intergrated grpahics, but i tried a different video card, a RX580.

Meanwhile i am convinced that the motherboard is the faulty device, i can t prove it but the whole system is from 2017 and now it´s time to renew some parts of the PC.

Thank you for your suggestions!

Ohle