Gpu all of a sudden breaks??

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I had just started playing rocket league, then after 30 seconds of playing my game starts lagging like crazy! I checked to see if anything was wrong in HWmonitor, and I saw that my 750 ti was running at about 2%, and my clock speed was at ~150 mhz!! While playing games my gpu never goes above 60C, so I don't know what could be the problem. HELP!!!!

 

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and now my resolution is lower than usual...

 

[GameableXP]

realized it was me upgrading my os to windows 10 that caused the problem, durp