Enabled secureboot, now six beeps and blank screen

[xbox360141]

Well I just screwed up my 6 year old HP computer. I had been messing around with setting up custom secureboot keys. When I switched to the HP keys and enabled secureboot, restarted with my graphics card in, I get six beeps. Without it, using the on board graphics, I don't get the six beeps, both have blank screens. I believe I may have cleared the HP keys. My question is, can I restore the bios and the included HP keys? I did make a backup of the HP keys to a USB drive if that matters. Hoping for some help! I can't afford a new computer at the moment.

Thanks, Travis

[Grzwacz]

Hi,

You need to disable Secure boot and enable Legacy Support before upgrading graphics to a non factory graphics card.

Or you can clear the HP keys prior to installing the new hardware and create custom keys subsequent to installing the new hardware so you can use Secure boot with this new hardware.

But the PC will not boot with HP keys enabled and new hardware such as a graphics card.

Regards

[xbox360141]

Hey Grzwacz, I don't think I worded it right, I'm sorry! 

The graphics card didn't come with the computer but it was working fine before I cleared the HP keys, created custom keys, and enabled secureboot. Is there a way to enable on board graphics when I can't get anything on the screen?

I found a replacement board on eBay within my budget, do you think it would work?

Oh and the card that came with it (I don't have it anymore) was a GeForce gt640, the one I have now (which was working) is a geforce GTX 970. 

[xbox360141 · Accepted solution]

Update on my issue... The motherboard I ordered fixed the problem. So I guess the solution is don't clear the HP  secureboot keys.