I bought the Z77M offline. I was actually looking for Z77MX, but couldn't find it anywhere. Overclocking (OC) is limited on this board, in the sense that voltage and clock can not be set independently - thus limiting one from reaching 100% OC capability.

Also, no chance for a SLI - since the 2nd PCIe goes to 4x. larger cards will also 'bump' against the front panel connectors right below the lower PCIe. So, you are effectively stuck with a single GPU config.

Really Gud board for HD video editing. no problem. i have run with i5-3570k with 1 gb 9500 gt graphic card.