Computer boots up but something is wrong with the graphics card i can't work out.

First off i have tried more than one graphics card, a brand new PSU, re-seated the CPU, made sure it was protected, etc.

When i plug the 4 pin CPU cable into the socket, the graphics card makes 2 alternating speed sounds, the hard drives fire up and everything.

The system only seems to fully work if i wiggle the graphics card and even that takes a few minutes to find the sweet spot. Sometimes when i find it the screen is pink unless i move the monitor cable going into the back of the GPU.

I have to do this everytime i turn my computer off or reboot it, i've also noticed that when it is working there is a lot of slow performance from my system, especially when running visually demanding things such as 3DS Max.

I just can't put my finger on the problem at all. The motherboard is a GIGABYTE 770T-D3L, it has 6 gig of RAM. I have tried running it without the RAM but it still hangs on that weird GPU fan problem.

Can anybody help me?

Thanks!
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More about computer boots wrong graphics card work
  1. I think it's a faulty GPU, try replacing it with friends to be sure. It can also happens sometime due to loose connection.
  2. lonewolf7 said:
    I think it's a faulty GPU, try replacing it with friends to be sure. It can also happens sometime due to loose connection.


    I have tried another one that i have but i guess i can try my friends...
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