I am using an XFX ATI RADEON HD 6770 for the past 12-13 months without any problem except for the last couple of days.At first the screen started to flicker and later showed some vertical lines while playing a game, the monitor lost signal and I had to manually restart the pc.For the last 3 consecutive days my pc is showing the BSOD whenever I am playing a game and restarts automatically.I tried to uninstall and reinstall the video drivers from safe mode but in vain.Currently I have FIFA 13 and Sniper Ghost Warrior 2 installed, I got a copy of PES 14 yesterday and got the BSOD while playing that too.There is no sign of any problems while doing anything else, last night though the color scheme changed to classic while watching a movie on VLC.
MOTHERBOARD: ASUS M55A88-M
PROCESSOR: AMD FX 6100 6 CORE(3 GHZ)
GRAPHICS CARD: XFX ATI RADEON HD 6700
WINDOWS 7 ULTIMATE X64