I'm having odd issues with this board. I'm using a Q6600 which would appear to be a good clocker (3.6 with only +0.1v) and 2 x 2gb Reaper X 800mhz 4-4-3 sticks. Problem is I cant get windows 7 Enterprise x64 to install even at stock speeds? This is a second hand setup that was fully working with Vista 64. I get a reboot at some point during "expanding files" during setup.

I can however pass memtest @ 3.6/1600/800 4-4-3 using +0.1v cpu, 2.10vddr, 1.425vnb and 1.312vfsb. I can lower vnb, vfsb and vddr a fair way and still pass memtest - I've tried all sorts of different voltage combinations.

I've also tried ram @ 5-5-5-18-2T, eist on or off, HPET on or off, changed secondary ram timings to slackest possible, moved around hdd and dvdrw sata leads, changed PME wakup from bios to OS and back again, PCI latency timer @ 32 and 64, with and without soundcard (sb audigy). Only thing left to try is to disabled the network cards i suppose?

If I have the FSB at 400 it fails quicker than with the FSB at 266. It made it all the way to 97% at 266, only lasts to 35-45% at 400mhz.

Any other ideas I can try? Wits end!

I even went to replace it with a P5B Premium which seems to have expired whilst in the box on my shelf as it now wont post, just spins fans at max speed.

I'll check this thread later tonight, gonna swap ram and attempt another install like that but if nobody has any more ideas i'll try with Server 2008 x64. 7 would be ideal though as I need to run VMs and if necessary game on it (ie if my main gaming rig is in bits).