(adsbygoogle = window.adsbygoogle || []).push({}); My friend gave me 2 desktops but one i used for parts to fix his and the gaming one he gave me wont turn on. the motherboard and the leds in the front have power but when i click the power button nothing at all no beep or fans turning or etc.

There are quite literally hundreds of things that could be causing this.

The only thing I can suggest from what little information you've provided is to make sure all connections, inside & out, are firmly in place.