i think i must be the unluckiest person with the N68s-ucc 
i've received a Phenom II x3 this morning, so changed out my 7750be (wouldn't unlock extra cores) and placed in the phenom and DDR3 1600mhz,
no boot
, powered on/off 3 times and then it booted stating boot error press F2/delete to go into bios or will go to windoes in some seconds, i leave and it goes into windows fine.
I then restart system and then have the same issue so i change ram settings to run at 1600mhz with correct voltage and timings and again reboot to same issue.
this is bugging me as when it gets into windows it works perfectly.
Bios version 1.60
any help with getting this working correctly would be appreciated.

i've received a Phenom II x3 this morning, so changed out my 7750be (wouldn't unlock extra cores) and placed in the phenom and DDR3 1600mhz,
no boot

I then restart system and then have the same issue so i change ram settings to run at 1600mhz with correct voltage and timings and again reboot to same issue.
this is bugging me as when it gets into windows it works perfectly.
Bios version 1.60
any help with getting this working correctly would be appreciated.