On 28 Dec 2008 00:07:02 GMT, Jasen Betts <j...@xnet.co.nz> wrote:

>On 2008-12-27, Archimedes' Lever <O...@InfiniteSeries.Org> wrote:
>> On 26 Dec 2008 22:29:51 GMT, Jasen Betts <j...@xnet.co.nz> wrote:
>>
>>>On 2008-12-26, Archimedes' Lever <O...@InfiniteSeries.Org> wrote:
>>>> On Fri, 26 Dec 2008 09:35:14 -0500, Spehro Pefhany
>>>><s...@interlogDOTyou.knowwhat> wrote:
>>>>
>>>>>Gray is the Device 1, Secondary connector, pin 28 will be NC
>>>>
>>>>  Not true.  It is NOT a "cable select" cable.
>>>
>>>Why should anyone believe this claim of yours?
>>
>>   Look, fucktard... You STILL select 'master' or 'slave' when you install
>> a drive in a UDMA interface.
>
>Hey Shit for brains, I never said any different.
>
>>   That means that it is NOT 'cable select'.
>
>this is where you are WRONG WRONG WRONG WRONG.

  You are full of shit.
>
>>   Using a 'cable select' cable would REQUIRE that the drive be set to
>> 'cable select' as well,
>
>NO, never has, never will.  

  You are a goddamned retard.  Always has...  always will.

>the drive has to be set in a compatible mode with any other drives on
>the cable, that is all.

  Wrong.  When using 'cable select' feature, BOTH drives get set to cable
select, AND a MODIFIED 'cable select' cable MUST ALSO be used.  In such
cables, the RIBBON gets holes punched in it and THAT is what detaches
certain pins on the assembly where the SAME CONNECTORS are used
throughout the ENTIRE INDUSTRY.

  If you were any more clueless, you'd be named Roy!

On 30 Dec 2008 08:10:29 GMT, Jasen Betts <j...@xnet.co.nz> wrote:

>On 2008-12-28, Greegor <G...@gmail.com> wrote:
>> I've seen a few computer systems that actually reported
>> that you had not used an 80 pin IDE/UDMA/ATAPI cable.
>>
>> How does the mainboard tell 40 pin from 80 pin?
>> Does it detect reflective noise or what?
>
>the plugs are not straight-through plugs.  most of the pins 
>are but each colour of plug has a few of the pins tricked 
>(eg:open or gounded) in a different way.
>


  You're a goddamned LIAR!

>
>> On the other hand, I thought this was a thread about
>> IEEE488/GPIB/HPIB and I didn't catch how it
>> devolved into IDE/UDMA/ATAPI from there.
>
>discussion of reducing noise by wiring ribbon cable 
>signal,ground,signal,ground,signal,ground

  A discussion about your lack of knowledge thereof.

On 30 Dec 2008 08:10:29 GMT, Jasen Betts <j...@xnet.co.nz> wrote:

>On 2008-12-28, Greegor <G...@gmail.com> wrote:
>> I've seen a few computer systems that actually reported
>> that you had not used an 80 pin IDE/UDMA/ATAPI cable.
>>
>> How does the mainboard tell 40 pin from 80 pin?
>> Does it detect reflective noise or what?
>
>the plugs are not straight-through plugs.  most of the pins 
>are but each colour of plug has a few of the pins tricked 
>(eg:open or gounded) in a different way.
>

Complete crap.  I have made 40 conductor IDE cables with straight
cables and standard ide connectors.

>
>> On the other hand, I thought this was a thread about
>> IEEE488/GPIB/HPIB and I didn't catch how it
>> devolved into IDE/UDMA/ATAPI from there.
>
>discussion of reducing noise by wiring ribbon cable 
>signal,ground,signal,ground,signal,ground

Picky picky picky.  Worse, you have been around here long enough to
know better.
  

On 2009-01-01, JosephKK <q...@yahoo.com> wrote:
> On 30 Dec 2008 08:10:29 GMT, Jasen Betts <j...@xnet.co.nz> wrote:
>
>>On 2008-12-28, Greegor <G...@gmail.com> wrote:
>>> I've seen a few computer systems that actually reported
>>> that you had not used an 80 pin IDE/UDMA/ATAPI cable.
>>>
>>> How does the mainboard tell 40 pin from 80 pin?
>>> Does it detect reflective noise or what?
>>
>>the plugs are not straight-through plugs.  most of the pins 
>>are but each colour of plug has a few of the pins tricked 
>>(eg:open or gounded) in a different way.
>
> Complete crap.  

no, it's true.

> I have made 40 conductor IDE cables with straight
> cables and standard ide connectors.

yeah 40 conductor cables are wired straight-through (optionally with the
cable-select pin extracted or conductor cut on one of the plugs.)

and the 80 conductor cables used in PCs have tricked up plugs
so that some pins they aren't wired straight-through, and because of
this they can be detected by measuring logic level on the pins.