With a computer that powers on and runs its fan, but doesn't get any further, what would be useful troubleshooting steps and diagnostic equipment (if any)? It seems undamaged to look at, and the user denies dropping it or getting it wet.
This machine is a Fujitsu Amilo laptop, but I'm more interested in learning general hardware troubleshooting. I have already taken the hard drive out and rescued the data, and I don't think (and the user agrees) a basic computer from 2007 is any great loss. Which does mean I can safely practice on it!