when you do go to overclock, 3 GHz is the "easiest" to hit because of the 6850, same chip, same multiplier, different bus. Just raise the bus up to 333 from 266, and up the voltage to ~1.25-1.3. Have your memory run however you want it, minimum DDR-2 667. Leaving it on auto most every board will take care of the voltage and it will work fine. 333x9= 3 GHz.
Being a stock intel board, you may need a little more luck than anything.
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Reply to rockbyter
Clock gen wouldn't help if it can control the board. The board is locked as per Intel standard.
Change the motherboard, get a new after market sink. Period.
The Asus P5Q Pro is a good overclocker and has the same features as the more expensive Asus P5Q Deluxe. My P5Q Deluxe and Q6600 (VID 1.32) have hit a very stable 3.0 ghz at 1.272 V.
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