Mine were 50-51C under load and 25C case (this is with a swifty MCX 462 and 68CFM 80 MM Delta, XP 1800+). Asus is full of crap and there's an article out there that proves the temps are off. Don't have the link handy. Might want to try a search.
I ended up having voltage problems with my A7V266E, RMA'd it and got another bad one. Also I didn't like the fact that Asus cranked the FSB up so it performs well in benchmarks against other boards. Another issue I found out is that the CPU voltage is actually cranked up higher than specificed in the BIOS to ensure stability. Of course no one was told this. Set you voltage to 1.75 or whatever default is and go into MBM. Ye shall see. I think that switching powersupply is a big part of the problem with the board. Epox has the same setup for the 8KHA+. Think about all the posts re: voltages etc...
Exchanged it for a KR7A 133 RAID. Have to say this is a sweet board. My first Abit and I'm very happy.