PC not recognizing GPU

[Jordan1417]

So I have a pretty ancient computer that I gave to my girlfriend so we could play some games together, its my old desktop which is the HP Pavilion p7-1210. Everything in it is from the original computer, the only parts i've changed out is the HDD and I put 8GB of ram in it. It still has the stock APU which I reapplied thermal paste to and it has the original PSU which still works fine. The computer will boot with no problem if I have the DVI cord plugged into the mobo for the Integrated Graphics, but when I plug the DVI cord into the GPU the monitor doesn't appear to be getting a signal. I've checked and made sure the GPU was seated properly and the GPU fan will spin when the pc is turned on. I've tried the GPU in my personal pc and can confirm that it works fine so thats not the issue. I tried looking in the bios for a setting to make it run off the GPU but the bios doesn't seem to have anything like that. The GPU I have in it is a Radeon 7750 which is a low wattage card so it should work with the psu that was already in place. Anybody have any suggestions to try? Thanks!

[Keesler]

What I'm thinking is the mobo isn't able to push out enough power to the card so it can even boot, it's recommended a 600w psu for that card.

either the psu can supply enough for the mobo to power the card and it's self or that mobo can't power a card like that.

[Jordan1417]

14 hours ago, Keesler said:

What I'm thinking is the mobo isn't able to push out enough power to the card so it can even boot, it's recommended a 600w psu for that card.

either the psu can supply enough for the mobo to power the card and it's self or that mobo can't power a card like that.

I found a bios update that I'm going to try, if that doesn't work then I guess ill look for a worse gpu lol

[Keesler]

3 hours ago, Jordan1417 said:

I found a bios update that I'm going to try, if that doesn't work then I guess ill look for a worse gpu lol

lol I know the feeling with my old dell