>>In my system, I have an ASUS P4533 motherboard and UltraDMA/133 hard
>> drive.  Although the motherboard's specs say that it supports
>> UltraDMA/133, I noticed  that, under NetBSD, the disk is accessed using
>> UltraDMA/33.
>>
>>Are there any plans of supporting UltraDMA/133 on this motherboard ?
>>
>>The IDE controller is a Silicon Integrated System 5597/5598 and,
>> according to  pciide.c, the driver is set to use UltraDMA/100 on SiS
>> 735 and UltraDMA/33 on  other chipsets. Would it be possible to just
>> set sc->sc_wdcdev.UDMA_cap to 5  (or 6...) in order to get a quick fix
>> supporting UltraDMA/133 on the ASUS ?
>>
>>
>
>     Are you using a 80-pin IDE cable?

Yes, I am: with the same cable set-up, I get UltraDMA/100 when I install
an external IDE controller.

> If not, then probably the
> ultra-dma mode will be limited to 3. I'm not sure if NetBSD already
> suports UltraDMA/133.