Pros: Bought this board for the explicit reason of unlocking the Callisto 550 BE to a quad core... it works. FYI, DO NOT use the windows bios flashing, use Q-Flash. Total setup cost $170 which is how much Newegg is now selling a combo for now (wish I had waited) but still love this deal. Board came with F1 bios but download the F2 bios from Gigabyte's website and you are good. USE Q-FLASH, trust me.

Cons: I had to do a lot of reading to make sure this board would unlock the Callisto's 4 cores. It does, you don't have to read anymore.

Overall Review: Scoring 5.9 in windows vista ultimate.

Pros: 5 eggs what else can I say that has not been said.

Cons: None.

Overall Review: Best value board that I could determine was the GIGABYTE GA-MA770T-UD3P. It unlocks all cores and was a piece of cake.

Pros: Free Call of Duty, inexpensive, ddr3.

Cons: 384mb of ram

Overall Review: If you don't have Call of Duty it is totally worth it.