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6970 crossfire major problem, dunno why - Page 2

post #11 of 28
Is your pcie frequency at 100?
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post #12 of 28
Thread Starter 
pls help as im stuck without a way out
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post #13 of 28
Thread Starter 
how do i check that? in the bios but where?

also i didnt change anything in the bios, and crossfire ran fine on 5970 before
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post #14 of 28
Quote:
Originally Posted by steelballrun99 View Post
absolutely nothing, ok.. i took my old crossfire 5970 out and swap the 6970's in, booted fine and deleted the ccc and stuff then rebooted, but now i dont even see bios.. then i only use 1 card at a time and it runs fine installed 11.7 and cap 3 from amd site, but when i put 2 cards in for crossfire, samething happens, nothing just blank no signal.. its like crossfire support was thrown away.. funny but im angry i cant find a reason..
Quote:
Originally Posted by steelballrun99 View Post
pls help as im stuck without a way out
You have both cards plugged in. If you don't see the screen... which card do you have the lcd connected to? Try swapping the plug to the other card. You're using the dvi plug?

Btw, how did you "delete" the drivers?
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post #15 of 28
If you still have your 5970's, install those, then uninstall your drivers. Make sure the registry is clean as well by using a program like Driver Sweeper. Once cleaned out, put the new cards in.
post #16 of 28
Quote:
Originally Posted by erocker View Post
If you still have your 5970's, install those, then uninstall your drivers. Make sure the registry is clean as well by using a program like Driver Sweeper. Once cleaned out, put the new cards in.
Don't use driversweeper.
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post #17 of 28
Do not use driversweeper.
and sell me your 5970's .
post #18 of 28
Thread Starter 
i dont have my 5970's anymore, and i already install windows again.. now im on a clean win7 64 bit, new drivers, etc.. just crossfire doesnt work.. i swapped the cables to both cards to try and same.. could my mobo be dead or something?
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post #19 of 28
Quote:
Originally Posted by steelballrun99 View Post
i dont have my 5970's anymore, and i already install windows again.. now im on a clean win7 64 bit, new drivers, etc.. just crossfire doesnt work.. i swapped the cables to both cards to try and same.. could my mobo be dead or something?
If both cards work individually, but not together it could be a hardware prob with your board.

Did you try each card in a different slot of just the one slot?

Btw, 2 5970s in crossfire, it isn't called crossfire, it's called quad fire.
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post #20 of 28
Thread Starter 
yeah its quadfire sorry, and both slots work.. i tried it on both thats y im going nuts
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