Gpu not detected and onboard gpu only sometimes works

[BlackShuck]

I have been having some weird problems with my computer. Earlier today I re applied some thermal paste to my CPU as it was getting to hot. Before this, my computer was running fine and when I start it up to see if my fresh thermal paste had worked I found that nothing would appear on screen. It just said no signal on the screen. I thought it may have been the ram but the onboard gpu works. After restarting to go to the bios I found it stopped working. And then it worked again later.

So the on board works sometimes and the main gpu never works if that makes sense. I am panicking at the moment as I have no idea what to do. No forum has had the answers so far, and this is why I am now asking for help.

Thanks


Ben

 

[Welshstig]

Did you set your gpu to the main video output?

 

[BlackShuck]

What do you mean

 

[Welshstig]

Did you set your gpu in the bios to the main video output.

 

[BlackShuck]

It isn't detected by the bios
It is as though it wasn't plugged in

 

[Welshstig]

Resit your gpu and try a different PCI-E lane.

 

[BlackShuck]

Tried that already. The on board gpu isn't working now. Does this sound like it is the mobo

 

[Welshstig]

Possibly, but you can try this;

-Reset your BIOS
-Disable IGP
-Uninstall old drivers
-Download the latest drivers (For the moterboard, gpu and so on...)

 

[sora]

Tried that already. The on board gpu isn't working now. Does this sound like it is the mobo

It could definitely be the motherboard. What motherboard do you have?

 

[BlackShuck]

I have an asus mobo. I reset the bios as we'll by taking out the CMOS battery and putting it back in. And I cannot disable this igp as neither gpus work.

If it is the mother board what could have caused it to brake.
When I was working on it I used an anti static wrist strap.