I'm trying to plug my 24 pin psu into the motherboard, but the latch on the 24 pin wont latch on to the motherboard. Also, on my case (phantom 410) i have 4 3 pin fan connectors and a molex one too. Where do i plug those into. I already tried plugging the molex in to the psu but the fans only pulsated and didn't spin
The 24 pin connector should have a little hook on the latch. Some times the plastic mold is not perfect and the hook has a bit of plastic stuck on the end. If this is the case you can use a razor to clean the hook.
The case fans with 3 pin connectors should plug into the 3pin fan headers on the Motherboard. If you board only has 2 connectors you can use a fan splitter or a molex adapter.
The fan with a molex should plug to any psu molex just like an older hdd or dvd.