Computer Troubleshooting Tips

by Clarence
(USA)

I need some computer troubleshooting tips or help finding some solid Online Computer Tech Support:

I have an Emachine that is about 14 months old. The problem is that the power button does not light up but the fan runs at a high speed. I've tried computer troubleshooting this issue: I did check the cpu and memory sticks and they are good. Not sure what's going on? Oh, the monitor does not come on either. Any ideas?

P.S. I bought most of the computer parts online but getting online tech support after purchase (and after one year) is almost non-existent.