Tried installing new GPU, went back to old GPU and now no signal on either

swordfishes

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Mar 30, 2014
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4,510
Was having problems with a recent ebay purchase. GPU would crash, both screens would have lots of lines and games would freeze. Also windows would flicker. To determine if it was the GPU, I got one from a friend and installed the drivers for it (forgetting to uninstall the old drivers for the other GPU)

Radeon HD 5870
MSI p43-c51 7519 ver 2.1
OCZ 600W MXSP

Worked ok besides issues while playing games. Decided to stress test and saw that the temps rose very high (90C), so I created a fan curve. Solved the problem for a bit but then it came up again so I tried getting a new GPU to work. Sapphire Vapor-X HD4890

All cables have been secured, tried resetting bios and CMOS, Everything is plugged in. Tried swapping RAM.

With the Radeon card it tries to boot but doesn't get past POST. No beeps, not sure if there is a speaker or not. Got it to boot once but when I connected my other monitor and closed the case up it stopped working again.

Got a code 0037 when it tried to boot before, there's nothing in the manual about it.

Now all I get is no signal. I know it tries to boot because I have to hold the power button down for a few seconds to get it to turn off.

With the Sapphire card, it acts like it's not recognized and still no signal. One press of the power button and it turns off immediately.

All fans are spinning, no beeps, no windows sounds. Tried with DVI and Display Port cables on different monitors that all previously worked.

Thought it might be an issue with the extra drivers installed so I disconnected the HDD to try to get it into bios, but nothing.

I don't have a breadboard or postcard.

Besides trying a different PSU/GPU, what other options do I have?

Like I said, it booted up once, into Windows, and everything looked great. I think it's a bad GPU but then why does the other one not work?

I think the GPU was overclocked as it had extra fans on the rear cutout panels, so maybe it fried something?

Thanks
 

swordfishes

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Mar 30, 2014
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4,510
Update! It's running. Sort of. Put a new video card back in, runs ok. Put my old video card in and it boots, but when I stress test it, it fails. Put new card in and boots but I can't get fur mark to load with the new card.

Using a 600w supply, tried a 1000w but is couldn't get it to turn on. CPU issue? All video cards work excellent and pass stress tests in other computer with 1000w psu.
 

swordfishes

Reputable
Mar 30, 2014
3
0
4,510
Update again. 1000w power supply and new gpu work. 1000w power supply and original gpu do not work. Are there compatibility issues between msi p43-c51 board and Radeon 5870??? Power supply is tested and good. Video card works in other computers. Other video cards work in this computer. Is this just a bad matchup?