Hi, in these days im getting this screen while playing games or surfing on internet. After that pc freezing or restarting and also sometimes its getting bsod. i used memtest and tested like 1hour 30min no error. changed ram slots and get this screen again nothing changed at all. i got ati ccc 12.6. formatted my pc 3-4 days ago i mean its clean like baby. installed all windows 7 updates.
windows 7 ultimate x64
MSI 870A-G54 (FX) AMD 870 AM3+ DDR3 SATA3 USB3 ATX
Geil Enhance Corsa 8GB 1600MHz CL9 Dual Channel (2x4GB)
AMD Phenom II X4 955 Black Ed. AM3 8MB 3.2Ghz with Stock Fan
SAPPHIRE HD6850 1Gb 256Bit DX11 GDDR5
Akasa Genesis 450w Psu
What could be the problem?