You should check if everything is plug in the right place, check all the wires, it should work all right, accept if something is damage. Check and make sure all fans are working and the processor is seated right. Try starting it up with 1 stick of ram at a time. If you still have the problem try starting with the other stick. If you don't find a problem with your ram take out all pci and agp cards and disconnect everything except the harddrive and leave the graphic card in if you have one . Then try starting it up. If it starts and run fine with just the harddrive. You can start hooking everything else up 1 at a time and start the computer up each time you connect something.
