have you removed the added memory. if it reboots without the added memory check that your motherboard can handle the new memory ( size and specs ) or if you need to change a jumper
(check your manual ) or update your bios. ( check the motherboard web-site)
If it dont reboot when the added memory is removed chances are
the motherboard is broke probably due to static electricity while
you installed the new memory.
Gary
June 2005