Sorry if this question is asked frequently but i tried a search and found nothing, anyway i have a great computer a friend of my dad's built for me and it has worked fine for about 2 years now. For the last few WEEKS when i push the power button to turn it on, it makes NOISE like it is starting up (fans and everything working so i know it is getting power) and then, after about 3 seconds it just dies completely and makes no noise. If i unplug it and TRY again it will usually do the same thing but after about 3-10 tries it eventually will boot all the way up instead of just "dying" after a few seconds. it's almost like it is powering up and then can't quite GET all the way there. it reminds me of a car when the starter is going but the motor doesn't catch. any help greatly appreciated, thanksWhen was the last time your computer had a complete internal cleaning and all connections were checked?

It also don't hurt to remove all removeable cards,memory sticks, and clean off any tarnish build up on the contacts with a clean pencil eraser rubbing GENTLY,of course.


SNAP!

Do you have a known working power supply of sufficient wattage to try?