2.5" to 3.5" IDE adapter cable the wrong way round?

[motorollin]

adolescent wrote:
Take two bits of paper and draw a female connector on each and number the end pins (1,2,43,44).  Now, get those two female connectors to line up correctly. :-D

I couldn't do it on paper... but I got two female cables and put one against the other and proved to myself that the pins get reversed :-)

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moto

[motorollin]

Zac67 wrote:
The power pins from the 2.5" plug don't connect to the 3.5" side, so that's not a danger.

Not even if you use the cable the opposite way round to how it was intended and reverse the pinout of the 44 pin side?

Zac67 wrote:
However, how the rest of the signals behave when reversed is beyond me...

Well, I imagine it would be a similar effect to plugging the IDE cable in the wrong way round. I tested the drive in a 3.5" caddy and it worked fine, so at least I didn't kill the drive!

--
moto

[Zac67]

motorollin wrote:

Zac67 wrote:
The power pins from the 2.5" plug don't connect to the 3.5" side, so that's not a danger.

Not even if you use the cable the opposite way round to how it was intended and reverse the pinout of the 44 pin side?

Well, if you reverse it on the 44 pin side then - yes. Pins 41 & 42 carry +5V, ending up on two data pins (might cause some damage to the I/F, but lower probability), and the GND pins 43 & 44 go to _RESET and GND - no problem. I wouldn't try it, but chances are good you get away with it.  ;-)

[motorollin]

Zac67 wrote:
Well, if you reverse it on the 44 pin side then - yes. Pins 41 & 42 carry +5V, ending up on two data pins (might cause some damage to the I/F, but lower probability), and the GND pins 43 & 44 go to _RESET and GND - no problem. I wouldn't try it, but chances are good you get away with it.  ;-)

The gender changer was on the 44 pin end, so it was that end which was reversed. Looks like I got lucky, since it didn't do any damage.

Phew!

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moto