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CrossfireX problems... please help !!

post #1 of 19
Thread Starter 
Okay, I just put my water-cooling system together and got everything hooked up... running peachy. Got my crossfire 5770's hooked up again and ready to rock and roll.. did some benching to test out the temps found out that my second card is not working during gaming even though crossfire is enabled.

I've swapped from 10.3 to 10.2 to see if this made a change.
I've used a separate video card in the second PCI-E slot, it worked.
I moved the second card up to the first slot, it worked.

I'm not sure what the hell is going on... can someone please give me some advice here? I don't know if I should swap out the motherboard and see if that fixes it or what... thanks!
post #2 of 19
What game were you playing?

Was it a game that supported dual GPU's. If not, the second GPU won't be used. It will sit idle.

If you set the CCC 3D AI setting to advanced, it will force crossfire on games that dont natively support dual GPU's. That could cause a bit of stutter though.

Since some games weren't originally built to support multi GPU rendering, the second card will be unused during gameplay.
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Steak_N_Eggs
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ESXi 5.x Server
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post #3 of 19
what are you using to monitor the load on your gpus?
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post #4 of 19
Thread Starter 
I'm running furMark, multi-gpu... and msi afterburner to monitor the status of the cards. I attempted playing BC2 and it's only getting 45fps instead of the normal 90 as well...

I'm gonna go get a mobo from MicroCenter tomorrow and see if that fixes it.... any other updates would be THANKFULLY ACKNOWLEDGED!
post #5 of 19
it's because of a crappy/buggy powersaving option that ATi now includes with the catalyst suite... well that is if the 2nd card's clocks/temps/fans show up as zero's in overdrive?

if that's the case, i trouble shot this the other day... the powersaving feature is called: EnableUlps, and there are several instances of this in the registry that will need the values changed to 0 from 1

i don't know which is a bigger fail atm; this or the camcorder hdmi on the fermi's...
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post #6 of 19
Thread Starter 
Well, suniva *****... I'm not sure how that would have to do with it... but it doesn't. I hadn't changed a thing since 10.2 and it worked just fine.
post #7 of 19
Thread Starter 
Thanks!
post #8 of 19
is that what is happening? the 2nd card wouldn't read in overdrive?
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post #9 of 19
Thread Starter 
No, it wouldn't work.... it was enabled in cfx... but when i played games or benchmarked, it was at 0% usage
post #10 of 19
And you have Catalyst AI enabled, and you aren't running in windowed mode, correct?

I really doubt it's the motherboard at fault. Have you tried a safe-mode driver sweep yet?
    
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hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
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