Those of you who are experiencing there turbo mode turning off with prime.. well it's supposed to do that. Prime is putting all core's to 100%. Turbo mode only works on single threaded applications. It overclocks one core and shuts the other 3 down. Your board is performing just perfectly because this is the way intel designed turbo mode. If you run a single threaded app like SuperPi, You'll see that your Turbo mode will work every time because it's a single threaded app. (Unless you have manually set affinity to all cores in the process manager).

And as for the RMA. This is a standard practice with all motherboard manufacturer's. If you RMA your board, you most likely will get a refurbished one back as a replacement. Thats why if your within 30 days of buying the product, you should always RMA to the reseller such as newegg or tigerdirect. Biostar, Asus, EVGA, Gigabyte, all do the same thing. Send refurbs back.

@Bringerofdeath- When you switched your second GX2 from the bottom white slot to the second blue slot, Did you see a performance increase at all? The bottom white slot only runs at a max of 8X so I'm just wondering what kind of difference you saw.

Thanks