Quote Originally Posted by synergy View Post
Yes, please, I'd be interested to find out what happens with
your G0 CPU and BIOS boot/upgrade experience.
Please let us know what BIOS rev. you end up going
from and to and whether there are any boot / volt /
frequency / etc. problems before or after.

Do these ASUS BIOSes do automatic "on by default"
over volting / overclocking? I seem to remember my
A8N32-SLI Deluxe did exactly that, and had lots of
chronic problems over and undervolting the CPU depending
on one's settings, and from what I've heard it's not an
uncommon sort of problem with ASUS boards.

Hence I'm even more than "normally" concerned about
what it'd do with an "unrecognized" CPU stepping
and very old BIOS version at boot.

I don't see any labels to indicate what the factory
flashed BIOS version is, so my only real options are to
try it with the G0 Q6600 or buy a Pentium D just to
verify/reflash the BIOS.
I got my new P5K Deluxe and so far I've only tested it outside my case. I used the Intel HSF with my E6750 G0. The CPU was recognized on boot and the default BIOS was 0202.

I used my USB flash drive to flash the 0311 BIOS using EZ Flash 2 from the BIOS. This is the version listed on the CPU support page so I decided to start with it. After flashing the BIOS I restarted, set my default values and rebooted.

With all that success I decided to take a break but as soon as I turned my back the system shutdown on it's own. I restarted and found the CPU temperature was in the 70c range. The HSF felt secure but I shutdown, reseated the HSF, restarted and when I checked the CPU temperature it was 27c.

I stayed in the BIOS for an extended period of time without any other problems. I was able to boot to Windows but won't be doing any testing until I get it installed in my case. I won't be using this HSF.

I can't be sure that a Q6600 G0 will be recognized as my E6750 was but I'd sure give it a try.

I don't have an answer for the voltage questions.