Hey Crazykooter, you know if it were me and I had read this thread pretty closely and I saw there was someone running his e8400 at 4500mhz everyday of the week with Absolutely no problems of any kind ever with his set up.
You know I think I would try the bios he is running just to see.

One more little .02 cents here I think before I got too wound up over any bios I would first learn how to go for ward or backwards with any bios try before I loaded up any new bios. You can just use Asus update in windows to go to any bios you would like if you take the time to look at the options it offers under the little arrow tab.

Like I said I would look to see whao has had an easy time getting hi-speed from his system and see what he is using and try to emulate that.

See Sig.

WZ