Here are my E8500 on the Asus Commado cooled with the boxedcooler...

http://valid.x86-secret.com/show_oc.php?id=320227

Other FSBs with different mobos, but same CPU:
Asus Blitz Extreme: 570Mhz
Asus P5B Deluxe: 550Mhz
DFI Lanparty DK P35: 525Mhz

The Commando is great