I recently bought a Sapphire R9 290, and my computer doesn't start up when it's plugged in. Only the lights on the motherboard turns on. When I use the old one it works, just not with this one. My power supply is a Corsair CX750M. I have tried updating my BIOS. Still doesn't work.
EDIT: I disconnected the cable that goes to SYS_FAN2 and now it turns on. Should I keep it disconnected?
EDIT: I disconnected the cable that goes to SYS_FAN2 and now it turns on. Should I keep it disconnected?