I am getting the GeForce GTX 460 : http://www.scan.co.uk/products/1gb-...shader-clock-1526mhz-336-cores-2x-dl-dvi-i-mi but I am worried that it won't fit my motherboard (http://www.amazon.co.uk/Gigabyte-SK...ard-Rev/dp/tech-data/B0050BGGBG/ref=de_a_smtd). The GPU's interface is PCIe 2.0 (x16) but the mobo only has a PCIe x16. Will it fit?