Hi, I recently bought new Motherboard Gigabyte F2A68HM-S1 with AMD processor A series that running 3.5ghz. I also partnered it with GeForce GT-730 2Gb ddr3 video card. But still I experiencing hanging in my pc even if I already formatted it. The only ones that left old was my 160gb hdd and 500W power supply that came from the year 2009, are they the reason why my PC won't run to its best performance? I also have 4gb of ddr3 ram. My pc don't use all of the 4gb and displays only 3.45 usable even if my os is a 64bit Windows7 Pro. Do I also have to change my power supply and hdd to solve this? Help guys.