Greetings, I've got a late 2011 15" MBP with the anti-glare display, and the 6770M GPU. I replaced the RAM with 1600Mhz memory (corsair) about a year ago I put in a Samsung EVO 500gb drive around the same time. I've traced a problem with performance to the following situation: When the battery is not 100% charged, and is CHARGING, (plugged in) I get a kernel task process that spins up and uses my CPU like crazy, 500%+. If I unplug the power adapter, it goes back to normal. if I put an ICE PACK under where the charger is, it settles down. My fan spins up like crazy (obviously during any GPU intensive application) as well. Could I have a bad heat sensor or something? Is charging + GPU use overheating something? Has anyone else experienced this? I'm waiting on the broadwell MBP and hopefully the new GPU they use for it, just frustrating that it keeps getting delayed, when this problem occurs my laptop is basically unusable until the battery has fully recharged. Any advice would be appreciated!