If you read my post above you see that my temps are good and stable. Just want to stress this as a lot of people keep saying that quad cards in a case is impossible due to heating. I don't even need a table fan or anything. On the other hand, I did not overclock drastically, just the 900/300MHz trick with AMDOverdriveCtrl.

I won't stick with Linuxcoin either. Wouldn't say it sucks, it's very good to get going quickly but it's not very practical if you want a bit more than that.