My friends Ironside computer he just bought has been freezing almost all the time when hes playing games. Help? It cant be with ram, we tried switching them around, theres one stick. heres the specs

OS: Windows 8.1 64-bit )6.3, Build 9600)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: To be filled by O.E.M.
Processor: AMD Athlon(tm) X4 860K Quad Core Processor (4 CPUs), ~3.7GHz
Memory: 8192MB RAM
Page Fil: 2323<B used, 7732MB Available
DirectX Version: DirectX 11.

Help us please, we like playing CSGO And GMod, and its hard when his computer freezes!