System not booting with new GPU

My specs:

HP Pavillon HPE H8-1022
Pegatron IPISB-CH2 motherboard
Intel Core i7-2600CPU @3.4 ghz
Windows 7 64-bit
EVGA Geforce GTX 760
OCZ Fatal1ty 750W

So recently I bought this new GTX 760 from EVGA and a new PSU (OCZ fatal1ty 750W) to meet the requirements (my old PSU was a 460 Watt. It wouldn't be able to run the card). I've had this computer since 2011 and never had a single problem with it. Upon installing the new hardware, when starting the machine, the HP start menu screen appears, followed by a beeping sound every 10-15 seconds and no response from the keyboard.

Obviously the problem must have been with the new hardware, but no. Restoring the old ATI Radeon HD 6770 (the one that came with my computer unit when I bought it) while keeping the new PSU, my system boots and works just fine. All games and everything else works with no hassle.

To test out the GTX 760, I installed it on another computer we have and it booted up and worked perfectly. So there hardly seems to be any issue with it either..!

I tried updating my BIOS, I tried the whole bunch of different connectors that came with my modular PSU to see if that might do the trick, with and without the extensions included with the graphics card. The GPU is a 6-pin + 8-pin one, and both were always connected. After around 8-9 tries, where I checked each time to see if the connectors and the card were connected and fitted like they should, I ran out of options.

Does the problem lie with the motherboard itself (an IPISB-CH2 by Pegatron), who might not be compatible with the GTX 760 or with Nvidia at all, or is it something between my PSU and Graphics card?

Thank you all
3 answers Last reply Best Answer
More about system booting gpu
  1. Best answer
    Sounds like a bios bug on your hp.
  2. smorizio said:
    Sounds like a bios bug on your hp.

    Thanks for the answer! :)

    And yes, it just might be. But I have no clue. Right now I'm back with my Radeon HD 6770 until I find a solution and I used the opportunity to update my BIOS to its latest version. It updated succesfully, but the problem was still there when I tried the GTX 760 again.
  3. Hi, have you found a solution for this issue yet? I just bought a GTX660 to upgrade my HP Pavilion Elite h8-1260t, which has the same MB. I am getting the exact same boot up problem as you have. Spent hours troubleshooting, but no luck. Btw, I also upgraded the PSU to Corsair CX500W 80-plus Bronze at the same time.

    When I put back my original HD 7570, it worked fine. But with the GTX660, it can't get pass the HP blue screen...
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