Messages in this thread |  | | Date | Mon, 05 Feb 2007 08:23:20 -0600 | From | Robert Hancock <> | Subject | Re: hdparm for lib_pata |
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Patrick Ale wrote: > Good morning all, > > About the reason as of why it drops to PIO mode, I might have found > the reason for this, I am just not sure if what i found is related. > > When I opened my Athlon XP machine, took the cables out and replaced > them for new cables, I found out that my southbridge fan wasnt > spinning anymore, at all. > > So my guess is that this chip is overheated at some point and starts > causing problems. > Now, it was always my comprehension that the southbridge does indeed > control the ATA controller but only the onboard one, so even if the > chip is having heat problems, my PCI add-on cards should still work on > full UDMA100 speed, right?
The southbridge usually runs the PCI bus connected to the slots, so it's possible that PCI bus issues were causing problems..
> > I am re-assembling my athlon board again today, and as soon as I get > the falling back to PIO mode errors again in dmesg I'll forward you > the messages, like you asked :) > > If someone could shine a light on my question about the southbridge, > I'd really appriciate it, email me privately if you prefer. > > Thanks! > > Patrick > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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