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SubjectRe: IDE DMA Problems...system hangs
Alan Cox wrote: 
>> Feb 13 05:23:27 bertha kernel: hdo: dma_intr: status=0x51 { DriveReady
>> SeekComplete Error }
>> Feb 13 05:23:27 bertha kernel: hdo: dma_intr: error=0x84 { DriveStatusError
>> BadCRC }
>You have inadequate cabling. CRC errors are indications of that. Make sure you
>are using sufficiently short cables for ATA33 and proper 80pin ATA66 cables.

I've had cases (on VIA chipsets) where, even or ATA33, a 40-pin cable
caused CRC errors for ATA33 and an 80-pin cable fixed things. (The same
40-pin cable does ATA33 without problems on an AMD 750 or an Intel BX,

IIRC, Andre Hedrick has said in the past that a marginal PSU or
motherboard can also cause CRC errors.

-Barry K. Nathan <>
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