Re: DMA doesn´t work [kernel 2.2.14]

From: Walter Hofmann (
Date: Fri Feb 25 2000 - 21:28:20 EST

Richard Brunner schrieb am Freitag, den 25. Februar 2000:

> Hi!
> I have a problem with my new hdd [Seagate Baracuda (ST328040A, 27199MB
> w/512kB Cache, CHS=3467/255/63)]!
> The DMA mode doesn´t work.
> DMA works with my second hdd (FUJITSU MPB3043ATU E, 4125MB w/0kB Cache,
> CHS=8940/15/63, UDMA).

Use "hdparm -i" to check the UDMA mode, "*" marks the one selected by
the BIOS (udma2=Ultra 33, udma3=Ultra 66). Make sure that udma3 is only
selected if (1) your motherboard supports it and (2) you have the right
cable. If this is the problem then check if Seagate has a Utility to
disable the Ultra 66 mode.

Does this help?


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