hi, I recently bought notebook (used market)(acer 5750g with 8G ram) with i7 2670QM, it was at 80C idle and max 1.8GHz-2.2GHZ at 96C, so i cleaned it, change thermal paste and now it is on 70C idle and constantly at 2.2 but when i run anything (chrome, youtube etc. ) its like 80-90C and than throttling to 0.786GHz over and over again. is there any way to undervoltage the i7 ?