Hi guys my old rig keeps on freezing. If i leave it without doing anything for 15 mins it freeze completely, if i play a game on it for awhile the system freezes and makes a really loud high pitch sound through the speakers. The error is resolved when the GPU is taken out but the Gpu works perfect in my new rig. Any ideas? Old rig specs: Q8200, 4gb drr3, 250 gb hdd, XFX 5870. Be quiet 530w pure power.