Re: onboard ICH4 seen as ICH3 (ultra100 controller onboard)

[Stephan van Hienen]

On Sat, 5 Apr 2003, Alan Cox wrote:

> On Sad, 2003-04-05 at 10:53, [e-mail] wrote:
> > mainbord is an intel se7500cw2 (dual xeon)
> > same problem with 2.4.20 and 2.4.21-pre7
>
> I'll take a look. Its probably just a typo in the list of names.
> Its doing UDMA100 so it got the rest of it right 8)

I don't think it is doing U100 :

]# hdparm -Tt /dev/hda

/dev/hda:
 Timing buffer-cache reads:   128 MB in  0.27 seconds =474.07 MB/sec
 Timing buffered disk reads:  64 MB in  2.54 seconds = 25.20 MB/sec

]# hdparm -Tt /dev/hdc

/dev/hdc:
 Timing buffer-cache reads:   128 MB in  0.27 seconds =474.07 MB/sec
 Timing buffered disk reads:  64 MB in  2.58 seconds = 24.81 MB/sec

]# hdparm -Tt /dev/hde

/dev/hde:
 Timing buffer-cache reads:   128 MB in  0.27 seconds =474.07 MB/sec
 Timing buffered disk reads:  64 MB in  1.37 seconds = 46.72 MB/sec

(hde= promise U100)

]# hdparm -X69 /dev/hda

/dev/hda:
 setting xfermode to 69 (UltraDMA mode5)

dmesg gives me :

ide0: Speed warnings UDMA 3/4/5 is not functional.