Removing a Power Supply, etc.
Well, I'm using my cousin's computer right now. Would I just be able to remove his power supply and try it in my computer? Mine's a Dell, and his is a Gateway. I mean, are all power supplies compatible with all computers?
As for the motherboard light, yes, I'm referring to the LED that's right on the motherboard itself. I have the case open, and nothing else responds upon pressing the power button. The motherboard light is on as soon as I plug in the computer. No fan or hard disk response, no odd noises, no CD-ROM functionality, no nothing. I'll try the other power supply, assuming that it'll work with my computer. All I need to know is whether or not it'd be compatible. I've never replaced a power supply before.