Hi there. I have a LGA775 socket and use the ThermalTakeV1. I built my computer without knowing that I had to align the cooler arrows pointing outwards. I just pressed in the pins until it seemed that it was solid.
Anyway, so I JUST saw a video tutorial on it so I removed the cooler just now and re did it the "correct" way with the arrows pointing outwards.
But I am looking at my CoreTemp right now and it is actually a few degrees higher... there was no foreign material or anything. All I did was take off the cooler to re-do the pins.
Also, my CPU VID was always 1.35 but ever since I re-arranged my cooler pins, its jumping from 1.16 to 1.35... this is really really weird...
the cpu is ok. maybe u get higher temps cause of the different air flow u might have in the case now. anyway, make sure that the heatsink is installed properly - to have a good contact with the cpu. push pins a tricky.