>    > 
>    > Interesting. Could you try to just remove the PDC_IS_265 here:
> 
> Thanks.  This change works well.  My drives are working as
> UDMA 5 now regarding to boot-time messages, though I have no
> way to check the actual speed.

dd if=/dev/rwd0d bs=64k count=16384 of=/dev/null

and you will see how much seconds is needed to read 1GB of data.

> 
>   wd1 at pciide1 channel 0 drive 0: <Maxtor 96147U8>
>   wd1: drive supports 16-sector PIO transfers, LBA addressing
>   wd1: 58623 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 120060864 sectors
>   wd1: 32-bit data port
>   wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
>   wd1(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)
> 
>    > My bios sets PDC2xx_SCR this way but maybe it's not valid everywhere.
>    > Linux cheks it but doesn't change it; FreeBSD doesn't do anything
>    > special here.
> 
> My Ultra 100 cards came with 200b12 BIOS.  I upgraded them
> to 201b27 (latest) BIOS.
> 
> Regards,
> -- Kazushi
> "You can do this in a number of ways.  IBM chose to do all of them.
> Why do you find that funny?"
> 		-- D. Taylor, Computer Science 350
>