🚀 go-pugleaf

Brian Cryer wrote:
> "ClueLess" <clueless@wilderness.org.invalid> wrote in message
> news:j0ino5p7hrvcjpd357c0o7338tqtp5ta5n@4ax.com...
>> Posted to comp.sys.ibm.pc.hardware.storage, 24hoursupport.helpdesk
>>
>> Hi Friends
>>
>> Here is a strange problem, when I connect my hard disk using the 80
>> wire cable my computer does not recognize it.
>>
>> It happened this way. I had to check another hard disk and so I
>> swapped the disks (IDE0) and found it was not recognized. Then I
>> connected the original hard disk and it was also not recognized. I
>> tried both the IDE0 and IDE1 channels with the same result. I tried
>> also other hard disks as well other 80 wire cables, still no go.
>>
>> Then I found an old 40 wire cable and when connected with this,
>> bingo, all the hard disks are recognized.
>>
>> No pins broken, no hardware damage. All the cablea are in good
>> condition. In fact the machine for years worked with only the 80 wire
>> cable.
>>
>> How does this happen? This is just a banana motherboard and the
>> problem is in the bios stage itself. (bios says "Not installed")
>>
>> If any of you can give me an explanation or a solution please do
>
> The 40 wire cable was used by older IDE drives. The 80 wire cable was
> introduced with the advent of Ultra DMA/66, the extra wires serving to
> reduce noise. Full story at
> http://everything.explained.at/AT_Attachment/

> As I recall, with the 40 wire cable you needed to use the cable
> select on the drive to indicate whether the drive was a slave or
> master, but with the 80 wire cable it depended on which of the two
> connectors on the cable it was plugged into.

It should still show up fine on the 80 wire cable.

> If the drive isn't recognised with the 80 wire cable then I'd suspect
> either the cable or the IDE logic on the motherboard. So whilst you
> might think the cable is fine I'd still try a different cable.

Particularly as it isnt hard to get a cable that has the metal
prongs that bite into the ribbon invisibly bent over and just
the act of plugging in the drive can make the fault show up etc.

> If you can't find anything wrong with it connected via your old 40
> wire cable, then stick with that. I know that transfer rates will be
> slower, but probably not so you'd notice.

Makes more sense to work out why it no longer works.