On Nov 11, 2012, at 11:58 AM, Steven Brown <[email protected]> wrote:
> What is the dfference between a mac ide 40 pin cable and a regular ide 40 pin > cable? > > Do not tell it is the "i" missing from difference! > > I know that one of the pins or pin hole is not there on a mac cable. I think pin 19 was plugged on most ATA cables for all types of machines to keep you from plugging it in backwards. > It will start up and show os x graphic but will not go any further with a > regular cable. Been quite a while since I put an ATA/IDE drive into a Mac, but the only difference I remember is that some of the older machines didn't recognize the "cable select" mode, so you have to actually set the jumpers on the drive for master or slave mode. If the ribbon you're using is set up for CSEL, there is a pin shorted to ground that isn't grounded on a non CSEL cable. A CSEL cable can usually be used with master/slave jumpers. On really old machines, there was a problem with the drive always being seen as a slave unless the grounded hole was disconnected. (I think it's pin 28, but you'd better do some Googling before you take out the wire cutters.)
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