SSD Power cable pin assignments for mid-2011 21.5 inch iMac (12,1)

Discussion in 'iMac' started by emcee2, Dec 4, 2014.

  1. emcee2 macrumors newbie

    Joined:
    Dec 4, 2014
    Location:
    Vancouver
    #1
    Hello,

    The short form of my question: Does anyone have the pin assignments of the 3 wire SSD power cable for use with a mid-2011 21.5" iMac?

    The long form: I am soon to add a Sandisk (Extreme Pro) SSD. I've got an Apple SATA cable (#593-1290) though it might be a bit short (not quite 8"/20cm), but no matter - I've got another SATA cable anyway so that's not a big deal.

    Of course, I do need a power cable for the SSD, and - call me cheap - I'm not so keen on forking over anywhere between $20 and $40 (+shipping/tax/time) for a simple power cable (3 wires, two connectors), especially since I have a spare Apple HDD power cable (#593-1294) which I can modify to make "the same" cable as the Apple SSD Power cable (#593-1296 aka 922-9862).

    All the pictures I have seen on the web show the motherboard end of that cable to be a 4 position connector, of which only 3 positions are wired to the SATA/SSD power connector (15 position, with coding notch) at the other end of the cable. One of those wires must be +5 Volts, another 0 Volts... but what's the 3rd wire?

    From the SATA power pinout as shown here, I think it is either a second 0 Volt line, or possibly the "Staggered spinup/activity" line.

    In this install videos on the web you can see motherboard SSD power connector. I believe its reference number is J453x (I cannot read the last digit, though I suspect it might be a 0)

    My other option is to use a combo power/data cable I already have at the SSD end, but unfortunately it has a short standard Molex power cable so I would have to make a kludge cable connection anyway.

    So, not wanting to put my iMac out of commission for hours/days/weeks(?) while futz around trying to figure out what's what, I thought I should ask here... the information has probably been posted before, somewhere, but I am not having luck finding it.

    Many thanks,
    eM
     
  2. emcee2 thread starter macrumors newbie

    Joined:
    Dec 4, 2014
    Location:
    Vancouver
  3. pdmateus macrumors newbie

    Joined:
    Feb 10, 2012
    #3
    Hi, I also have the same doubt, and I'm unable to find a cable anywhere for this, all overpriced... probably only mac specific right? I wasn't able to find that connector you mentioned.

    How did it work out for you? Tks!
     
  4. shoulin333 macrumors 6502a

    Joined:
    Jun 26, 2007
    Location:
    California
    #4
    I made my own for my 2011 27" from two separate cables and spliced them together.

    Do you think it would be the same? If so I can find the two part numbers. Bought them from Frys for just a couple bucks.
     
  5. emcee2 thread starter macrumors newbie

    Joined:
    Dec 4, 2014
    Location:
    Vancouver
    #5
    I haven't gotten around to trying this yet... home renovations over the holiday break have taken precedence over my computer renovations...

    Thanks,
    eM

    ----------

    Hi. Yes, if you don't mind digging up that info, it may prove to be useful. Thanks!
    eM
     
  6. Yorman433 macrumors newbie

    Yorman433

    Joined:
    Aug 5, 2016
    #6
    Hi everyone....anyone know the pinout configuration of the Power out pins for SSD in iMac mid 2011 21.5"? I want to build a Power cable.....Please help me....regards
     
  7. Kandesigner macrumors newbie

    Kandesigner

    Joined:
    Sep 15, 2016
    #8
    I already came across this. The most left pinout marked "V" is the 5V. Second and fourth pins are ground and the third is empty. That's all you need to power up your ssd.

    I suspect the connector that fits here is the micro mini JST 4 pins. If you're a hobbiest you should have one around. Just solder the 5v and two grounds to any 15pins sata power cable that goes into your ssd (red is 5v, black is ground, and yellow is 12v that you can cut off)

    Good luck!
     
  8. rizwanbhola macrumors newbie

    rizwanbhola

    Joined:
    Sep 30, 2016
    #9
    Can you please reconfirm if the connector that fits in J4531 SSD Power Socket is the Micro Mini JST SH 1mm 4 Pins socket?
     
  9. rizwanbhola macrumors newbie

    rizwanbhola

    Joined:
    Sep 30, 2016
    #10
    The pinouts of the SSD Power Cable J4531 (PP5V_S0_SATA) are as under:
    Pin #1 = 5V
    Pin #2 = GND
    Pin #3 = NC (Not Connected)
    Pin #4 = GND
    However, my problem is that I do not know which female connector to use. If it is micro mini JST 4 pins, anybody knows the exact part no?
     
  10. Kandesigner, Oct 1, 2016
    Last edited: Oct 1, 2016

    Kandesigner macrumors newbie

    Kandesigner

    Joined:
    Sep 15, 2016
    #11
    Well I can assure you %90 its micro mini JST 1.5mm pin spacing (not 1.0). The connector I used was taken from a dongle that used to program a camera gimbal (currently inaccessible). I used the picture attached to calculate the correct pins distance while knowing the width of the gimbal board (The female connector is marked with red).
    [​IMG]


    [​IMG]

    Just additional note, such white male connectors used to come with a tiny notches on sides, these can be cut easily by a razor to fit the iMac socket.

    Hopefully this helps.
     

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