Re: Massive IDE problems. Who leaves data here?

From: Alan Cox
Date: Tue Jan 22 2008 - 17:27:50 EST


On Tue, 22 Jan 2008 21:40:21 +0100
Manuel Reimer <Manuel.Spam@xxxxxxxxxxxxxx> wrote:

> Jeff Garzik wrote:
> > If your IDE interface is complaining about BadCRC errors, then it's
> > complaining about hardware problems (bad cable, etc.)
>
> The cable already has been replaced three times. I even got sure to
> *not* bend the cable. This all doesn't help.
>
> May a bad cable really cause corrupted data?

Yes, or dodgy connectors or other problems. The CRC itself is computed by
the hardware each end so a BadCRC error really means the two ends
disagree about the data.

That is *usually* a cable/electrical noise problem. It can be power and
it can occasionally show up if the software misprograms the timing so the
two ends are a bit out of sync.

Alan
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