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System will start with 5870, but not gtx560


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Loltsuka Loltsuka is offline
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Join Date: Jul 2012
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21-Jul-2012, 07:37 PM #1
System will start with 5870, but not gtx560
Allright so first my specs:
Nexus 80%+ 800W psu
Core i7 950 not overclocked
Asus p6t motherboard
8gb of ram, vengeance 1600mhz (2x4gb) seated in a1 and b1
2x 640gb hard drives
Windows 7 64bit

Now to the issue, when I plug my radeon 5870 into the mobo, I can boot into windows and log in np, but when I install catalyst drivers etc, I crash in gui, except if I disable the card in device manager, resulting in me using the crappy on-board gpu. I first thought tyat the 5870 was busted so I plugged a brand new gtx560 in and it crashed at POST a few times, and then coming to the windows logo and crashing there. No error messages, and then I plug my 5870 (still no drivers) and windows boots up fine. I've re-seated everything multiple times, and checked wires and heat, nothing out of the ordinary. So is the mobo busted, or the psu, or is something conflicting with the drivers?
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