AvoK95 wroteWhere did you see lightning in the middle of summer ? There is only 2% chance of a CPU being fried. it rarely happens, almost never.
hehehe, i said that as one of the causes of a dead CPU !
There's a bit of miss understanding here...
You have a fully functioning HP desktop, your friend gave you a working "Board+CPU+RAM+VGA", you took your old parts then install the new ones, your PC works fine for a couple of days then suddenly it wont post ? is that right ?
or..
It was working fine with your old parts but it won't post after installing your new parts ? "Board+CPU+RAM+VGA" ?
Sorry mate if you can't answer some questions we can't help you, it's the very last thing to suspect a corrupted BIOS
please give some details...