CPU fan cyles fast/slow - annoying noise
The computer is three years old but is fast and runs Win 7 ultimate. It just started making an annoying noise. It is definitely the fan on the mother board very close to the CPU (Intel Pentium 4 something). The cycle is faster than once a second and mimics a hard drive write. Touching the mother board clearly isolates the vibration and one can see the fan speed up and slow down. At first I thought something was overheating but it does this as soon as the computer turns on and continues indefinitely.
OK - "Replace the fan" That is a major nuisance and I am hoping that some really clever person has a neat solution; e.g. oil it or twist the board (scary) or something like that.
There are some old threads about noisy fans but those descriptions don't seem to fit my situation.
Thanks in advance. I have gotten some really clever advice on this forum.:confused: