My PC, which I built over two years ago (and has been running fine the entire time) is now shutting off about a second after I try to power it up after going from the stock AMD CPU cooler to a Corsair H80i. I used arctic silver 5 thermal compound. All the fans are spinning, and I can hear the pump when it starts up.
Through my preliminary googling, it looks like it could be either my CPU is overheating instantly, or my motherboard doesn't detect a CPU fan, but I don't know how to find out which one it is.
On my MSI motherboard, 1 light comes on before it shuts off.
Any help troubleshooting would be greatly appreciated.
My PC's specs: AMD FX6300, 4x2gb Kingston HyperX Black ram, Nvidia GTX 770 2GB MSI Twin Frozr Kingwin 750w PSU, 2x1tb hard drives
EDIT: never mind, it works