Possibly, once they move away from the design ATI has given them, then there is no guarantee that anything will work together in this manor.
ATI specified a "2 prong" bridge, XFX modified the design on there cards to use just a single "prong", so in theory, if you used only XFX in the SLI/Crossfire setup, you would be doing ok, but where you are using an original design with another companies slightly different design, the cards are not properly communicating with each other.
The rev 1 and rev 2 and so on, mean Revision, every few months a manufacture might change what type of parts they use for a particular GPU, and will give it a revision number higher than 1, to mean it is no longer an original design.
No. I was saying the single or dual prong specified XFX's custom board. I call it a "rev 2" because its their 2nd revision of the card which is a piece of crap. The custom PCB is what is the culprit though, not simply the prong. I was plagued with 4 of these specific cards and they where all junk and i wound up selling them. My 4890 had the same problem, XFX, and custom PCB.That kinda is what I said, isn't it?
You can try RMAing the board in hopes that you get a better one or you can sell it and get another Sapphire card. Either way as long as the problem is fixed thats all that matters. Im not sure if BC2 has very good crossfire scaling anyways. You could always try selling both of them and get a 6850 or 6870.Well- the whole REV stuff I understand now - thanks to cOrrOsive and PPMuire . Either way I have "fixed" the crash to desktop and the FPS in games by pulling the XFX card. Now the question is: what do I do with the XFX card- I doubt XFX will give me a new one as it still "works" - and even if they do- why would I want it- you cant crossfire them and the sapphire card is working better than the XFX card ever did. So - I have a perfectly good ( maybe) XFX 5770 card that is of no real use to me. I guess I could sell it - but I am unsure if it is really 100% or not. So, I don't want to stick it on some one else. have not had a chance to run the Furmark or the other bench test ( discussed earlier in this thread) using just the Sapphire card ( as opposed to the crossfire setup with the XFX card and the Sapphire card together) - it will be interesting to see results. Will post results ASAP and update you on what XFX says when I try to RMA the card.