I have a custom PC with q9550 2.83ghz york field ,Galaxy GeForce GT 520 1GB 64-bit DDR3 video card ,g31t-m motherboard with 4gb of ram clocked at 400mhz, 700gb hard drive 7200rpm, recently i was messing with the bios and ps/2 ports and usb ports stopped working so now im thinking of getting a new motherboard and new ram what would you guys suggest i get im on a budget so not to expensive i dont OC, i would like the motherboard to have ddr3 ram and pci-express 2.0.