|On switching on my PC (self-built 4 years ago and worked flawlessly until the weekend), the various fans/lights etc start, but only for a second or so and then the power is switched off, only to switch back on again, and then off, etc... It never gets anywhere near booting anything.|
Having checked connections, blown dust, removed video card, hard drive, etc I've discovered that the cpu fan does not spin and that the power will stay on with the CPU removed. Put the CPU back in and the problem re-appears.
Sounds like the fan has failed and allowed the cpu to cook. I noticed that the sealing compound has turned into a dry grey coating, like dried glue - that suggests excess heat perhaps?
The easy option of replacing the cpu fan isn't going to help, is it?
Any ideas, please?