Gateway Augsburg 915G Motherboard wont boot

[nightshade221]

so i have a gateway 5200XL with a Gateway Augsburg 915G Motherboard w/ PCI & 1394 4000966. it has 521 mb of ram 2 dvd drives and an intel pentium 4 with HT technology. for some reason the darn thing wont boot. when i plug in the power supply all i get is the mobo light. no fans, nothing. whenever i press the power button, once again, nothing. any clues as to what my problem could be? i already checked the power button and HDD lights but idk if theyre in the correct position. i also cant find any documentation on that mobo. any help is deeply appreciated.

[Sterling_Aug]

It could be either the power supply or the mobo.

[Train]

Is the socket you plug the power into loose?

Thoughts:
Power supply has gone bad and is not putting out right.
Battery is bad.
Now if the power socket is busted, you need a new motherboard.

[Ol'Tunzafun]

Check for bad caps on the motherboard. If they look OK, change the Power Supply Unit.
http://www.pcstats.com/articleview.cfm?articleID=195
http://home.earthlink.net/~doniteli/index27.htm