Tom Berkley wrote:
>
> Mode 4 is UDMA 66
> Mode 2 is UDMA 33
> What UDMA 66 controller is in your box?
No, not exactly...
UDMA 4 is UDMA 66
UDMA 2 is UDMA 33.
What he is referring to is PIO Mode 4, which is most decidedly not UDMA.
-Stephen-
> > Well, after 2 days of hair-pulling, I finally have a Linux system.
> > The problem was in UDMA/33 CD-ROM. I knew that I had to disable
> > UDMA/66 on the hard drive, but thought UDMA/33 is supported (my
> > CD is on the secondary IDE controller). Now they're both DMA-disabled,
> > in some purgatory that BIOS calls "Mode 4."
