So there are 2 systems on eBay ill link both that I'm looking at one with a z77 and one with a p67 board both paired with an i5 2500k and 16 gb of ddr3 which should I pick z77- https://www.ebay.com/itm/Asus-P8Z77-M-Pro-Intel-LGA-1155-Motherboard-i5-2500k-16GB-DDR3-1600/292614355574?hash=item44212cba76:g:1ucAAOSwHZhbLXiN p67- https://www.ebay.com/itm/202348206726