I just purchased a new ECS motherboard with a athlon 64 3200+ processor. I put the motherboard in an old box, put the processor in (which didn't go as easily as i would have hoped, though I didn't have to put much force to put it in, it certainly wasn't no force). I then put silver paste or whatever it is on the processor, and put a heatsink/fan on top. I put in the memory, attached hard-drive, etc. When I boot the computer, I don't see anything. The monitor flicks on its orange light when I turn it on, and I can't tell what's happening. Both the case fan and the processor fan turn on, the CD-ROM starts spinning with a CD in there, but the LEDS aren't working (though I seem to remember them not working on the old pc...) No bios messages ever appear. How do I troubleshoot whether this is a memory/processor/motherboard problem? There was an excess of thermal grease that squeezed out from beneath the heat sink, which I tried to remove as best as possible. I think I feel heat coming from the processor (i took the heatsink off), but I don't want to let it run too long because it might overheat. How long can I just let it run with no heatsink? Is this hopeless? Please help, my first computer build.