Guys Im still having the problem of the cards giving 1/2 scores in Unigine both in single and xfire. ie My xfire now perform the same as a single card
Now Ive done everything. Uninstall drivers, safe mode clean, reinstall drivers, use default bios, reflash bios to original Saph6950.
I consistently see 1/2 what the performances should be on the cards separate and xfire.
I've been thinking about this today at work. Comments on my logic welcome.
1. Id did my benches upon recieving the cards, every thing was as it should be and reflecting the Unigine scores of others. Using stock and mod bios'
2. Last Friday after some BFBC2, I exited the game and disengaged Xfire. I got a BSOD and registry dump.
3. Investigated this BSOD and appeared to happen when disengaing xfire, not all the time but mostly when the card fans were at 50+%.
4. On Sat I installed Crysis Warhead to give the cards a workout, I thought the 6950 by all reports could give enthusiast a good nudge.
The game ran like it was on my old GTX260, crap frame rate even on gamer settings. Was a bit disappointing, shrugged it of at the time.
5. Thought I would do another unigine bench to check that the cards.
6. Benches were 1/2 scores, the panic sets in.:shock: All the while still the odd BSOD reg dump, when going in or out of xfire.
My deduction atm:
1. This is not a driver or bios issue. The results are consistently half. Reg drriver/hotfix driver, 6950/6950mod bios.
2. This is not a physical problem with the cards. It occurs when each card is separate or in xfire. Afterburner show gpu's working well, the gpu and memory clocks are as they should be as per the bios that is in use.
3. When I think of half performance, I think of 32/64bit. Could my Win 7 registry be now corrupted after the BSOD's. Could Win7 now be defaulting to a 32bit mode when using the cards(device)? Would this result in half performance?
Any thought appreciated.
In the mean time I will get my 5850's back in and compare their bench scores.
Cheers Guys.
Update: I put in the 5850 and windows installed a new ATI device driver. The 5850 was only 4 fps and 90 score lower than my original 5850 test. But I may have used the other 5850 for the original test.. Definitely not a 50% drop. Def not the mobo.
I am hoping when I put in the 6950, Windows will again install a device driver. This is what could have been damaged in the registry.