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Author Topic: H81 PRO BTC with ref design 7990  (Read 370 times)
coincowboy
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February 08, 2014, 09:10:11 PM
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Anyone using a reference design 7990 with their H81 PRO BTC?  Care to share you experiences?  I've had all kinds of Display Driver stopped working issues when trying to use the 1x slots with powered risers (or unpowered).  I could not push the card hard without having this problem.  I did manage to have the system stable for short periods - sometimes as long as a day or so, but then the display driver would almost always crash.

I've got a hefty enough Corsair AX1200i and a decent circuit supplying 120V.

I'm now running the card in the 16x slot and it appears to be holding steady at peak performance at 610 Watts (that seems pretty high to me - anyone else's suck that much juice?)

http://imgur.com/6IOhwVu

Anyone out there having the same problems with their 1x slots?

Please share your experiences!
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coincowboy
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February 09, 2014, 03:43:45 PM
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*BUMP*

Anyone?
coincowboy
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February 11, 2014, 07:15:28 PM
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Well, let me ask this another way - has anyone had intermittent Display driver stopped working and has recovered problems with this motherboard with any cards?
djcrypto
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February 11, 2014, 07:35:17 PM
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Do these cards require two risers each? I seem to remember them taking up two slots on the motherboard.

I dont use them but maybe there is a config you can do in the BIOS or bump the Powertune on Afterburner to compensate?

QRK: QR78Eydx1jmLEM8VvjjxQx24GNugiL82B3
BTC: 1MmndJtdCsxAFsV3zjhTojXr6YeAAnw4Te
DRK: Xw1fyFCPq5Xgnu3BJXDRQbPcbqfDpfFbFF
coincowboy
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February 11, 2014, 07:44:27 PM
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Interesting, I've never heard of a card that requires two risers.  No, the 7990 only has one.

I've tweaked the configuration to death in afterburner.  I can definitely run the card stable at half power, but I really shouldn't have to do that.  This board is sold as a mining board and was supposed to be built from ground up with crypto mining in mind.  I shouldn't have these types of issues.

BIOS is latest.  I'm beginning to wonder if testing against a 7990 was ever done.  The most successful testing I've seen is against lower power cards like the 270X and 280X.
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