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
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
