Hello. I recently purchased a MSI 660ti PE. I overclocked it some, with +100 to the core voltage, +80 to the core clock and +375 to the memory. I also have the power limit maxed to 114. I ran it through the heaven benchmark and played for many hours with games such as Skyrim, WoW, Dishonored and Borderlands 2 to test it's stability. Everything has been working fine for days. Today for some reason the card has been acting up. While playing Dishonored my monitors suddenly turned off (I use one for gaming and the other for web browsing, movie watching, etc) and turned back on. When this happened I noticed I suddenly had noticeable lag in game. I run afterburner and my temperatures never go above 60 in Dishonored and the gpu usuage is usually around 75%. After the issue happened afterburner showed my card jumped to max usage for a few seconds when the monitors turned on and off, though the temperature never rose above 60c. Might this problem come from increasing the core voltage? I am a bit new to it so I don't want to mess anything up, so I have since reset the core voltage on the bard back to factor spec. Does anyone have any insight on what might be the problem? I'd appreciate it. Also, here are my specs.