http://valid.x86-secret.com/show_oc.php?id=309887

Got a bit paranoid that my Ph. BE wont do more then 210-220 on HTT and was trying to get as high HTT as possible, setting everything else to low/slow. For some reason (and it's been mentioned elsewhere ) regular Windows XP 32-bit is a lot more stable then the X64 version. I think it goes for Vista as well. Is it a windows issue or phenom running in "long" 64 bit mode?
I am guessing Windows, but could be both.
Most of my staff, naturally, is on 2 Raid disks with WinX64
Oh well there is always Linux