GPU stops giving signal after a few minutes even in BIOS

Diegoauron · Jan 4, 2015

Hello I hope someone can help me with this problem. Since yesterday my computer stops showing any video (monitor goes blank) after a few minutes of either going into windows or even inside the BIOS everything keeps running I can see the fans and stuff. First I thought it was a motherboard problem so I changed back to my old parts (Motherboard and CPU) and I still have the issue. I have also used two different PSUs and still it happens. I tried many things including cleaning the graphics card and changed thermal paste and still I have the problem.
Help would be really appreciated.

My Graphics card is Asus HD 7750

RaDiKaL_ · Jan 4, 2015

Can you reach into windows to see your temperatures? You changed it's thermal paste but still let's make sure it worked, check all your temps with HWMonitor Pro, enable it's log feature so you can review later the gathered data copying the report to another pc.

Also there's the chance of voltage instability, this too we'll be able to verify with HWMonitor log.

Diegoauron · Jan 4, 2015

RaDiKaL_ :

Unfortunately I can't because as soon as I get inside Windows start screen goes blank.. I'll try to get to that tho.

Ok I finally got inside Windows and just as I was about to take picture of the temps I lost video signal.. But the temps were were fine 37°C

RaDiKaL_ · Jan 4, 2015

hmm While being in BIOS can you see your CPU's temperature? monitor it until you lose signal, I know you changed mobo and CPU, but I wonder if your old CPU's cooler is still good (specially it's thermal paste).

Diegoauron · Jan 4, 2015

RaDiKaL_ :

OK I already went back to my original build since I found out its the Graphics card and not the motherboard. But yeah I can see the temps in the BIOS and the CPU and mobo tems look fine. CPU temp goes at 45ish never passes 51.
It used to just lose video output as soon as I got into windows but now it actually stays a bit in windows and Ive seen temps in HWinfo and they all look fine.

bishopi5 · Jan 4, 2015

Cable..

Diegoauron · Jan 4, 2015

bishopi5 :

Hello, no its not the cable because when I used the old motherboard that actually has on board graphics or works fine

RaDiKaL_ · Jan 4, 2015

Well certainly the video card is the issue, as a last attempt I'd say reseat the video card in your system but you've already done that while switching motherboards, seems the video card is faulty so it's time to replace it.

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GPU stops giving signal after a few minutes even in BIOS

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