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PC won't boot after gpu upgrade

Tags:
  • GPUs
  • Boot
  • Graphics
Last response: in Graphics & Displays
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August 29, 2014 2:05:36 PM

I've looked around, but so far no other solutions have been of any help.

I have a Gigabyte 970A-UD3 mobo, 8GB of RAM, 3 HDDs (1TB, 500GB, & 250GB), 700 Watt Coolmax PSU, and a XFX 7850 2GB GPU.

Problem: I bought a MSI 7950 3GB card (used, but taken care of) and when I tried to turn my pc on after plugging it in, I heard one long beep followed by two short ones. I let it run for a minute but after nothing coming up on the monitor I shut it down. I then plugged a second 6-pin cable thinking it was a power issue, but then the only thing that happened was my LED fans flash on then turn back off. After that I put my 7850 back in and the pc works just fine. Using to type this actually.

My rig is less than a year old so I don't think it would be my PSU losing its max output, but I'm not an expert on PSUs so I could be very wrong on that. Any help is appreciated.

More about : boot gpu upgrade

August 29, 2014 2:10:11 PM

The maximum output of the psu is fine for the card. It comes down to amps tho, maybe it just cant put enough juice into that card to sustain it? Or the card is simply faulty
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August 29, 2014 2:11:11 PM

From the beep code and your MB manual we can be sure that the problem is the graphics card. Can you test it in another rig? Did the previous owner show you it was functioning?
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August 29, 2014 2:32:59 PM

Coolmax makes garbage PSU's it's a possibility it just can't power the card. That or a bad video card. Even if it is the card that is bad you should still seriously look into replacing that PSU before it fries the system.
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