N580GTX - d3d11 appwindow::do_swap(): device removed

I just received my N580GTXoc from Newegg and I've been getting random freezes, display driver crashes (display driver has crashed and recovered) and the error dialog box "d3d11 appwindow::do_swap(): device removed" when running Unigine Heaven 2.1
My stats are:
XFXForce 780i
Intel Q9550 @ 2.85 ghz
4gig ram
Ultra X3 1,000w psu
MSI N580GTXoc at "stock speed" of 823/1069/1645 (see image)
Video Driver 266.58
Any help would be appreciated!
Brew

Quote from: Brewskie on 13-February-11, 05:49:44
I applied the voltage to 1038v and all the tests that were freezing can now run. Although there is a little artifacting and tearing in some places. But it's not very bad really.
The bench scores aren't really very high for a GTX580 but that's because of the mainboard, cpu and memory. Sandy Bridge 2600k would really help
Do I stick with this voltage? Or are there other things to do also?
Will I have to load up AB every time windows starts now?
Thanks again for your great help
Quote
Will I have to load up AB every time windows starts now?
nope, not necessary
Quote
I applied the voltage to 1038v and all the tests that were freezing can now run. Although there is a little artifacting and tearing in some places. But it's not very bad really.
Test it with OCCT Test:
http://www.ocbase.com/perestroika_en/index.php?Download
Select GPU:OCCT , checkmark "Error Check", then click on "On"
And leave it to test for few hours, see if arficats will comes there.[if such are appear they will be counted]

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