Mike O'Connor wrote:

>Don{ald} O. Woodall wrote:
>
>>   Time for another STUPID question.
>>
>>    IDE, E/IDE, ATA, ETC drives only have 40 pins.
>>
>>    My understanding is that in a regular 40 pin ribbon cable 20 line are
>>signal lines and 20 lines are ground lines laid
>>out in a every other line is a ground line fashion.
>>
>>    So, if you are adding 40 more lines to the cable;  what do they
>>connect to?
>>
>>    I would seem that you end up with:
>>
>>       G G S G G S G G.......
>>
>>    Does that really gain anything?
>>
>>    Thanks for the education, In Advance
>>
>Hi Don,
>
>You got the understanding wrong there with all those extra grounds!
>
>See http://www.pcguide.com/ref/hdd/if/ide/confSig-c.html for an 
>explanation of the actual signals on a 40-wire cable.
>

Don,

Here's a related link explaining why 80-wire cables, intrinsically 
cable-select capable with ATA66+, aren't so with older drives!

http://www.pcguide.com/ref/hdd/if/ide/conf_CS.htm

-- 
Regards,
Mike

Failed the exam for
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