Results 1 to 6 of 6

Thread: Pin outs for AT power supply

  1. #1
    Newbie
    Join Date
    Oct 1999
    Location
    Dayton, OH USA
    Posts
    14

    Pin outs for AT power supply

    Could someone please give the voltage assignments for the motherboard connectors for an AT type power supply? I am ready to complete my DC - DC project except for this part. Thanks.

  2. #2
    Low Bitrate
    Join Date
    Sep 1999
    Location
    Australia
    Posts
    99
    With the key facing toward you,you have.....
    +5v,+5v,+5v,-5v,G,G,G,G,-12v,+12v,+5v,PG(+5v via a 5k resistor). Hope this helps.

  3. #3
    Newbie
    Join Date
    Oct 1999
    Location
    Dayton, OH USA
    Posts
    14
    Thanks a bunch snakebite, that's exactly what I needed!

  4. #4
    Newbie
    Join Date
    Oct 1999
    Location
    UK
    Posts
    8
    OK, I've got the supply built, but what's the
    PG wire for (I assume this is power good?).
    Is this a signal from the PSU to motherboard or from motherboard to PSU?
    Cheers.

  5. #5
    Variable Bitrate
    Join Date
    Aug 1999
    Location
    Yorba Linda, CA
    Posts
    323
    PG is a signal from the PSU to the MB, telling the MB that everything is OK (all voltages are good and within regulation) and it's safe to boot.

    You can tie this to +5V through a resistor (1k - 5k works fine) to "fake" the PG signal. Some motherboards won't boot without this tied high, while others don't seem to care either way.

    --Jason
    http://jump.to/m2pc
    Jason Johnson
    Yorba Linda, California
    http://www.m2pc.com

    MPC Phase IV - *** PENDING ***

  6. #6
    Variable Bitrate spud42's Avatar
    Join Date
    Oct 1999
    Location
    brisbane,qld,australia
    Posts
    241
    for at and atx power connection pinouts try this site
    http://www.upgradeyourpc.com/powersupplyconn.htm

    even has disk drive power connectors
    Volvo V40 Phase 2 2002. T4 turbo upgrade.... currently no mp3 or carputer..... researching options

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •