greydeath, What I was suggesting really isn't all that dangerous, even for inexperienced computer users. It's not difficult to open up a computer case and just look at the cooling fan for a CPU to see if it's still spinning. It also doesn't require changing or tweaking any parameters to go into the BIOS and look at the current CPU temperature (if the motherboard supports temp readings). I don't know that the CPU itself is necessarily the problem, just that it's one more thing to at least check which can then be ruled out. My other suggestion was thinking along the lines of finding out which if any program was the resource pig and closing down any unnecessary programs running in the background to free up processing and memory power. If it's the Hold Bros. software itself that's causing a strain, the best thing to do if Cacheman doesn't help is to close any non-essential programs when running it.