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Gaming Desktop - Help - Assembling

Hello everyone,

Just received my haf x, a couple of hours ago, been checking my case and all the fans have molex? :ouch: Plugs .... But my motherboard only has 4 pin conectors , I'm starting to think I made a wrong purchase .......

Can you guys help me out? I'm building my first pc, so I'm new to all this..


Should I just connect everything to the Psu until I buy a fan controller? Help me out please I have all the parts on the floor and I really need to get the desktop up and running. :D


Many thanks in advance


Here's my parts: i5-3570K, asus P8Z77V, haf X, corsair hx850, corsair vengence low profile 8gb, windows 7 home premium, Evga Gtx670 FTw, Hyper 212 Evo
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  1. That's really bizarre - I can't believe a modern case would have all MOLEX connectors. You can buy MOLEX to 3/4-pin adapters from your local Radio Shack for like $3 each if you don't want to return the case.
  2. It's not all molex, but it has 2 molex and one 3 pin but thats connected to some other cables...

    If I connect the 3 pin to the motherboard and the molex to the psu, do I leave the other molex just hanging?
  3. Artic said:
    It's not all molex, but it has 2 molex and one 3 pin but thats connected to some other cables...

    If I connect the 3 pin to the motherboard and the molex to the psu, do I leave the other molex just hanging?


    The MOLEX connector should be split so there should be a couple of connectors coming from both. The 3-pin should be connected to your motherboard's SYS_FAN1 connector.
  4. g-unit1111 said:
    The MOLEX connector should be split so there should be a couple of connectors coming from both. The 3-pin should be connected to your motherboard's SYS_FAN1 connector.


    Many thanks g unit, I'm going to try it now, ;)
    Sorry for asking this last question, but I'm not very confortable doing this, first time build :D , should I leave the molex just hanging, and not connected to anything?

    Again many many thanks for the help ! ;)
  5. Best answer
    Artic said:
    Many thanks g unit, I'm going to try it now, ;)
    Sorry for asking this last question, but I'm not very confortable doing this, first time build :D , should I leave the molex just hanging, and not connected to anything?

    Again many many thanks for the help ! ;)


    Just leave it hanging for now, you can get the fan connector later and run it off your PSU, I had to do that with my Corsair 600T.
  6. Best answer selected by Artic.
  7. g-unit1111 said:
    Just leave it hanging for now, you can get the fan connector later and run it off your PSU, I had to do that with my Corsair 600T.


    Many thanks g unit, will try that now ;) my pc will run thanks to you! :D
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