On Wed, 28 Mar 2001, Mike Cheponis wrote:

> Date: Wed, 28 Mar 2001 09:00:06 -0800 (PST)
> From: Mike Cheponis <mac@Wireless.Com>
> To: port-i386@netbsd.org
> Subject: ide driver not using UDMA 100?
> 
> My IBM drive and Promise Ultra100 combo is only using UDMA mode 4 - when
> in fact the h/w is clearly capable of UDMA mode 5.
> 
> Why is this?  Thanks!  -Mike
> 
i think it's just not coded. but i'm sure you will see no performance
difference. fastest IBM drive could do about 40MB/s so it's slower than
UDMA-4