I undervolt my Operton 180 to help with the overheating problem. It doesn't completely solve the problem but it helps a lot.
The lowest I've been able to go is 1.025V
If I go any lower, the system won't post. Even at 1.025V it nearly doesn't post (there's a 30 second post delay).
I'm currently running at 1.175V which is working well (doesn't cause a post delay).
I also had to buy a pretty good cooler and an additional case fan.
Why this processor runs so hot, I'm not sure. Maybe a defective batch floating around.
It sure is fast though. It performs better in games than my Core2 Duo E6300.
Note: I recommend backing up your system before messing with the voltage. Twice while trying lower voltages as I ended up with an unstable system that resulted in odd errors and some data corruption. Also, if your system remains stable at 1.300V, I wouldn't bother dropping the voltage any lower (as I mentioned, I'm currently at 1.175V but it's still just a test).