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Anybody running 2 bios-modded 4850's in CF?

post #1 of 6
Thread Starter 
I've been trying to get mine to work for a while now but eventually gave up.

So I'm curious if any of you are successfully running bios-modded HD 4850's in CrossfireX.

If you are, Are they identical?, what drivers?, and did you have to do anything special to get it to work?

Thanks guys.
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post #2 of 6
Thread Starter 
So none of yall have bios modded HD 4850's?
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post #3 of 6
I have 2 Visiontek 4850's 512 Mb (different models) both flashed with the same Asus bios and they work just fine in crossfire. I haven't had them crossfired lately but I think the last drivers I used with them was 10.4.
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post #4 of 6
Thread Starter 
Are they reference models?
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post #5 of 6
Thread Starter 
Alright, well on a whim I decided to try it one more time yesterday. It worked. No problems at all.

Not sure if this made it work but here's what I did different this time.
-I selected the option to increase the Overdrive limits in addition to changing the clock settings
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post #6 of 6
I ran 2x Diamond 4850's that I mod'd the BIOS' on for Xfire just fine. If you have 2x cards that run good and just wont Xfire, flash one of the cards with the others BIOS... this worked best for me to fix the "wont Xfire issue".. from there I mod'd both BIOS for higher start clocks and fan speeds.

Heres a pic of my daily user with said GPU's before they were sold.

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