Hello
I have purchased 2 of these cards to us in crossfire on 2 separate orders. The first one I purchased not long after launch. This has experienced problems since day 1. When in idle mode such as web browsing the card will show artifacts on screen and constantly recover the driver and sometimes hard lock. There are several threads on various forums with this same issue. It happens when using 2d as the card downclocks itself to 157 core and 300 memory and also lowers voltage. This is what is causing the problem. The work around is setting up a profile in catalyst driver and amending the downclocks to 300 core and 600 memory and up the voltage to near stock levels. This completely eradicates the problem for me but the card isn't running as it should.
The second card I purchased about a week ago doesn't exhibit this problem and I notice it has a different cooler and heatsink.
Where do I stand on rma on this card? I don't want to send it off for somebody to test in a pc running a 3d app and rejecting it as its ok.
Link below for thread on AMD forum
hxxp://forums.amd.com/game/messageview.cfm?catid=260&threadid=121063&STARTPAGE=1&FTVAR_FORUMVIEWTMP=Linear