So, I have this old war horse HP Prodesk 400 G3 SFF. It has worked fine for years but on friday it did not post. Warranty ended 2018 and therefore I need to ask this here. When I press power button the led light up but nothing more happens. No monitor signal (tested with several monitors). I have done all the tricks and nothing helps.
Please read the rest from the link above.
Anyone have any idea how to resurrect this nice piece of hardware?
PSU should be fine. I've tested this setup with another good PSU and with it this hw do exactly the same.
I suspect that there is something fishy with the MB but I cannot figure out what.
As stated in the spicework thread in my mind it is strange that this is kinda semi-alive. Never seen symptoms like this. If this would be totally dead I would just throw this to metal recycling trash pallet. What is strange the it seems to me that some bios checkups are run (because of beeps/blinks if memory is removed or processor has no power) but it do not post.
This is zero money worth old computer and I have other newer computers and I could just throw this one to trash but I am curious to find out what is wrong with this because of the symptoms. Power is on and pre-post checkups are run but not completed. BIOS messed up or real hw failure?
I am not going to invest into this a dime but only some time if could revive this. Just for interest. Anyone any ideas to try?
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