I have a gigabyte 965P S3 with an c2d e6300 and 1GB DDR2 667 G.SKILL. Currently my c2d is running at 50 - 55 C and idling around 48 -50 C with the factory heatsink. I tried to do some mild OCing by using the auto voltage setting, setting the CPU multiplier to 7 (was originally set to 6), the cpu host clock frequency to 315, the memory multiplier to 2.00, disabling C.I.A.2, disabling virtualization technology, disable C1E, and leaving everything else at default. I pressed ctrl + F1 at the mother board intelligence page in bios but the hidden settings would not load for the memory (which runs at 1.8v and 5-5-5-15). However, coretemp reported my temps in the mid 65 -70s C. Is something wrong with my settings to cause the high temps or do I need to look into aftermarket cooling. I really would like to avoid aftermarket coolers as I could easily spend the extra money on upgrading to the e6400 in the first place. However, if I must get an aftermarket cooler, can someone recommend something cheap yet effective. I would like to obtain 2.4 GHz and thought this would be possible using the default heatsink. Also, I have a Lian Li Case with two 120mm fans running as well.