wow i just came back from vacation...and the new BIOS is arrived!

@Alien Grey: why didnīt you try the 266Mhz strap and go straight for 480Mhz+ FSB? Iīm stable at 4.275GHz with 475Mhz, Memory at 1188MHz. Maybe with the new Bios itīs stable above that.
The memory will be at 1200Mhz+, but with PL7. The higher FSB brings more performance.
You have water-cooling right? So 4.3Ghz+ wonīt be a problem.
btw you have PM :P