PC fan running full speed - Solved
Its an HP tower PC. Following a recent power failure, the CPU cooling fan now runs full speed, sounds like a jet taking off! I've checked the CPU temp, its running about 31 degrees C. The cooling fins...
Forum Discussion
Before you go to checking caps, I would check the paste on the CPU heat sync. I have seen them dry out all the time. They still keep the CPU temp down for the most part but they run just hot enough to trigger the fan. Scrape off the old paste, clean CPU and heat sync and add more paste. you do not need that much, just a dab.
