I have an 8 year old HP that is running Windows ME. When I boot up my computer I get a message saying "CPU Fan Failed. Will shut down in 5 seconds." I took out the out the old fan and replaced the fan and the power supply with one from another PC that I use to part out. I booted up the PC and all fans are running, but I am still getting the same error. Has anyone else seen this or have any idea as to what the problem might be?