Right folks, So my laptop is now running a fan pretty much all the time. I have run SpeedFan 4.40 and it is showing my CPU core sensor between 76 and 84 celsuis at load with the fan on full whack. The laptop is old and probably needs a good clean out. However, I also believe, because most of the heat is coming from the CPU, that I need to replace the thermal paste between the heatsink and the cpu. It's running ridiculously hot. So, what's the usual thermal paste to use (bearing in mind I haven't built a pc in ten years)? Would like to use same stuff for my new build PC too (Intel Xeon W3520 based) if possible? Any help appreciated.