I emailed Gigabyte to let them know that the 7B bios gave me issues, the response is pretty cool.

From : xxxx
Sent : 12/8/2007 22:21
Question : BIOS 7b only enables 3 cores on my Q6600.


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Model Name : GA-P35-DS3P(rev. 1.1)
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M/B Rev : 1.1
BIOS Ver : 7b
Serial No. :
Purchase Dealer : MSY
C/tick Number :
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VGA Brand : inno3d Model : 8800gt
CPU Brand : Intel Model : Q6600 Speed : 2.4
Operation System : Win XP 64-bit SP : 2
Memory Brand : g.skill Type : DDRII
Memory Size : 2x1gb Speed : pd8500
Power Supply : 850 W
There response:

Dear Sir,

Thank you for your kindly mail and inquiry. About the issue you mentioned, please follow the steps below taking off the on-board battery to leak voltage to clear CMOS then try again later.

1) Turn off power.
2) Remove the power cord from MB.
3) Take out the battery gently and put it aside for about 10 minutes or longer. (Or you can use a metal object to connect the two pins in the battery holder to make them short-circuited.)
4) Re-insert the battery to the battery holder.
5) Connect power cord to MB again and turn on power.
6) Press F1 to enter BIOS and load fail-safe defaults setting.
7) Save changes and reboot the system.

At last, if there is any further question or suggestion about our products/service, please do not hesitate to contact us. We will try to help you to resolve them as soon as we can.

Best Regards,
GIGABYTE TECHNOLOGY
They are on the ball.