PSU Making my own 4 pin?

Discussion in 'Hardware' started by AlienwareAndy, 2 Oct 2013.

  1. AlienwareAndy

    AlienwareAndy What's a Dremel?

    Joined:
    7 Dec 2009
    Posts:
    3,421
    Likes Received:
    70
    Hi all. My new board has a 8 pin EPS but there's also a 4 pin too which apparently aids in higher overclocks. The PSU I am looking at only has a 8 pin but has plenty of power.

    I have an old 4 pin I cut off the PSU of an old P4 Dell machine.. Could I make a Molex - 4 pin? It looks like it's two 12v and two ground.
     
  2. murraynt

    murraynt Modder

    Joined:
    6 Jun 2009
    Posts:
    4,234
    Likes Received:
    128
    The 8 pin should fit into the 4 pin AFIK
     
  3. AlienwareAndy

    AlienwareAndy What's a Dremel?

    Joined:
    7 Dec 2009
    Posts:
    3,421
    Likes Received:
    70
    Sometimes they do yes but there's only one. The board has two, an 8 pin and a 4 pin. You connect the 8 pin for regular use and the 4 pin when using high overclocks (ed. Both at the same time). The board has a 8+2+2 power stage.
     
  4. adrock

    adrock Caninus Nervous Rex

    Joined:
    5 Dec 2006
    Posts:
    1,265
    Likes Received:
    43
    i believe you can do what you're describing but you may need more than one molex, I'm sure we sold adaptors for older PSUs in the shop i worked in years ago, back when boards first started to add additional power connectors.
     
  5. noizdaemon666

    noizdaemon666 I'm Od, Therefore I Pwn

    Joined:
    15 Jun 2010
    Posts:
    5,757
    Likes Received:
    563
    molex is two grounds a 12v and a 5v. I personally wouldn't want to risk it just in case as youd'd be pulling power down 1 wire rather than two.
     
  6. jinq-sea

    jinq-sea 'write that down in your copy book' Super Moderator

    Joined:
    15 Oct 2012
    Posts:
    8,734
    Likes Received:
    640
    You could probably knock up a couple of molex -> EPS 4-pin loom quite easily though - perhaps two Molex -> EPS 4-pin, to split the load?

    It would be worth knowing which PSU rail (if more than one 12v rail) supplies each of the molexes/EPS 4-pin

    Else, if it'll juice 3 GPUs (six PCI-E power), what about an adapter from a surplus PCI-E 6-pin?
     
  7. lysaer

    lysaer Suck my unit! Kirk lazarus (2008)

    Joined:
    15 May 2010
    Posts:
    1,467
    Likes Received:
    71
    Fairly sure they sell molex to 4/8 pin adapters

    Sent from my Nexus 7 using Tapatalk 4
     
  8. AlienwareAndy

    AlienwareAndy What's a Dremel?

    Joined:
    7 Dec 2009
    Posts:
    3,421
    Likes Received:
    70
    Thanks for the info guys !

    I was going to do a dual molex to the two 12v and ground.

    Yeah I've seen them. I may aswell wait and see if an 8 pin can go in with the rest overhanging. I've done that a few times in the past but a couple of times there's been something in the way of it going in down the side :)

    Also guys.. The PSU I'm hoping to get has a single 12v rail so there's no guessing involved :)
     

Share This Page