It's not necessarily a new build, but I took components from a stock Acer computer and added them into a new case along with a new motherboard. Everything is compatible. The problem I'm having is that when I go to turn on my computer, the case fans and CPU fan will spin or "twitch" then stop. I'd tried to turn it on again, but the second time nothing would happen - no twitch, no nothing. The LED on my motherboard will be illuminated, but the computer's fans just won't spin. I haven't bothered to plug my computer into a display cause what's the point if CPU fan isn't even running? Unless you guys suggest otherwise. Any ideas on what's going on?