HP 24-f0020 all in one blank screen 3 long beeps and 4 short... - HP Support Community

Bswayz420 · ‎03-23-2023

Hello I have a HP 24-f0020 all in one. When I go to boot up I get a blank screen with 3 long beeps and 4 short beeps. After it does 3 or 4 series of beeps it attempts to startup but says unsupported adapter installed. Our house got struck by lightening then everything died. The original power supply died so I have used several different ones that smart computer ppl said that would work. Any ideas?

Bill_To · ‎03-24-2023

Hi

It is either a problem with the replacement power adapter or: memory, CPU, or MB. I would disconnect: the HDD and M.2 SSD if applicable, optical drive, and the M.2 WIFI card (one at a time to check for a successful POST).

I would first verify the replacement power adapter is okay but the power spike could have taken out other components.

You would have to swap in other known, good replacement components (memory, CPU, and MB) if the PC still does not POST after removing or replacing the first group of components.

Prométhée · ‎03-24-2023

hi

try this

Getting error unsupported adapter installed - HP Support Community - 6145827

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HP 24-f0020 all in one blank screen 3 long beeps and 4 short beeps.

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