Hello, so I just recieved my new power supply, a Corsair tx650. I have been trying to install it in my computer for a while now and plugged it in, only to find that my computer shuts off after 5 seconds when I start it up. I also noticed that on my old PSU, it had this odd 2p connector connected to my motherboard and wondered if this hs anything to do with this happening. If anyone can help, please reply to this thread. Thanks!