Re: Solution to some UDMA IDE drives failing?

Mark Hahn (hahn@coffee.psychology.mcmaster.ca)
Fri, 24 Sep 1999 05:01:08 +0000 ( )


this is a udma66 drive. if it defaults to that speed, or the bios
sets it that way, it'll break, matching these symptoms exactly.

> Gigabyte GA-586TX4 motherboard, P233 (not overclocked) Fujitsu
> MPD3108AT drive;
>
> kernel 2.2.13pre11 with the extra IDE patches still failed to
> recognise the drive as being UDMA capable (failed with BadCRC and
> lots of other things if DMA enabled using hdparm)....
>
> but turning off UDMA support in the BIOS brought it back to life,
> and we now get 8MB/sec as opposed to 4.6MB/sec in PIO mode 4. Happy
> again, but I don't understand it.

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