My GPU is currently the Nvidia Geforce GT 210 1GB DDR3 edition with stock frequency of 589 MHz. I overclocked it one or two months ago to 650 MHz and it ran fine for a month and a half with all games running smoothly. Now, however, the monitor goes off while I am playing a game but the cpu keeps running and its light keeps glowing. Even if I put FIFA 13 on extremely low settings, the GPU overheats and goes off in 7-10 minutes. Using SpeedFan, I checked the temp- All the other temps are shown fine but the GPU shows these extraordinary readings: 80-90 degrees during normal use and excess of 100 degrees during gaming. I am planning on buying a new GPU but I thought it would be better to discuss about it. Any help?