System component compatibility?

Compatibility is fine, but a couple of things might be issues.

There's room for the HD 7970 pair, since the primary PCI-E x16 slot sits to the left of your x1 slot and the secondary slot is to the right. There's enough space.

However, with many Micro-ATX boards there's not enough space between the CPU socket and RAM slots for really large coolers like the Hyper 212 EVO to fit when you're using memory sticks with tall heat spreaders, like Corsair Vengeance or G.Skill Ripjaws. The CPU fan can't slide all the way down, it physically hits the top your first memory module. So if you're using a really big cooler like that, go with low-profile RAM.

http://www.newegg.com/Product/Product.aspx?Item=N8...

Also, I question whether the Cooler Master Elite 430 has good enough airflow for a 7970 CF pair... For such a high-end combination you really should have a High Air Flow case, like the Cooler Master HAF 912.

http://www.newegg.com/Product/Product.aspx?Item=N8...

Finally, why go for the MicroATX version of the Extreme4? Get the full ATX Extreme4 board and you'll have more room for everything, which helps alleviate potential issues with heat and cramped spaces.

http://www.newegg.com/Product/Product.aspx?Item=N8...

You might think about upgrading to a better coolermaster case like the haf series , might also consider of buying some arctic silver thermal paste as well , looks like cheap thermal paste they use with the coolermaster hyper 212+, the slots should be farther apart for the graphic card to fit , most are using double pci brackets , the cpu cooler with those specs should hold the overclocking above 4.0 ghz , great specs upgrade the case and you are good to go

+1 to C MAN

Except get an asus P8Z77-V LK instead.also get windows 7 pro 64 bit.thats so that you can run 32gb ram in the future.

I, admittedly, am too lazy to look in the time of the full score, yet i will supply some advice: -i propose on getting some Arctic Silver 5 to place between the proc and the heatsink to enhance the circulate of warmth between the proc and the heatsink. -verify the max wattages of all the climate and notice in the event that they (all blended) exceed the max wattage of the means furnish -verify the voltage of the processor, and notice if that precise voltage is on between the voltage rails of the means furnish -make confident the processor and the motherboard help the cost of ram you picked (on your case, make confident they help DDR3 1600MHz RAM) it would say all of it interior the info of the product. -determine you purchase a computer screen that helps a minimum of between the outputs on the video card. stable success!!!