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SubjectRe: UDMA 133 on a 40 pin cable
Ok then after all .. what I see on my box could be a stupid IDE controller?

On Thu, Jan 02, 2003 at 02:40:20PM -0800, Ross Biro wrote:
> >
> >#1 How is the 40/80 pin detection done at the hardware level ?
> On the motherboard end of the 80 conductor cable, the connector shorts
> one of the pins to ground (maybe pin 38). The ide controller just
> checks to see if the pin is pulled low or not. Pulled low = 80 pin.
> That's one of the reasons it's important to plug IDE cables in the
> correct way.
> Ross

Teodor Iacob,
Network Administrator
Astral TELECOM Internet
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