I restarted my PC, but it abruptly shut down (the weird thing is that the fans were still running, so I unplugged it for a while). When I tried to turn it on, it would just power the fans on, but not POST. When I saw it did that, I pulled the memory modules out, and tried booting it with no memory. And it beeped, so I put the RAM back in, testing each stick and and slot separately, but it still won't boot. Could both sticks have died at the same time?