My second build went perfectly. I used a E6750 on a 680i Lt in an antec 900. installing the stock cpu cooler was difficult thanks to one of the screws/clamps being shorter than the others. After a little bit of reseating I got it on. Now I believed the temps for a stock E6750 were high at 47c idle 69-72c load in an Antec 900. I just replaced my Antec truepower 2.0 550w with a PC P&C Silencer 750w, but during the installation the cpu cooler poped out on one corner. Now my idle temps are 55c and overheating, over 110c, on load and this climps slowly to over 110c even at continuous 50% CPU load. Is this my CPU failing? Or is this my CPU cooler failing? The fan is running fine at the correct RPMs. Is it also true that stock Intel CPU cooler can not be reinstalled? Thank you for any help whatsoever.