I've got your same setup, and I'm maxed out at 2.47 and below 100*F under full load. It is really pissing me off that I can't get any higher and I've tried everything. I'm still having trouble accepting the fact that I may never see 2.6. So if you can get your Venice 3200+ and MSI K8N above my 2.47 PLEASE let me know what you did differently!!