computer problems

Ok well my brothers friend has left a computer in our garage over the entire summer until now. bascially i think he will never take it back. So i decide to use it. I notice it says pentium 4 and it has a cd rw drive, and a dvd rom drive. Im thinking sweet! cause i need a burner. Anyways i hook it up and the damn thing will not turn on. I open up the computer and look at it... it is real dusty and that is about it. The mother board light turns on and off but the computer wont turn on. Is this a power supply problem? is the whole computer fried from sitting in my garage from houston heat? what do yall think?

Check if the ram is loose.

it is in there good

it is in there good

Did you hook up the monitor???

Heh, I don't know man.

Does it have a system speaker hooked into the motherboard and If so what kind of beeping is it makeing when you turn it on?

i c a cord with the label speaker on it inside of the comp but it isnt hooked up anywhere and is loose, i dont see anywhere to plug it in

Rip out everything in the case. Just try and boot it with MB, CPU, RAM, Video Card, and Power supply. See if it posts. If it doesn't then try swapping parts one by one with known good ones (possibly with your own computer). Once you have nailed down the part that doesn't work then you know what to pickup on your next trip to Frys.

I'd say clean and rebuild it, try again.