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Date:      Wed, 23 Oct 2002 10:02:51 -0500
From:      "Jack L. Stone" <jackstone@sage-one.net>
To:        "Jud" <jud@myrealbox.com>, ukla@attbi.com
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Setup: UDMA133 - recognized?
Message-ID:  <3.0.5.32.20021023100251.00e357f8@mail.sage-one.net>
In-Reply-To: <1035384287.98dea9e0jud@myrealbox.com>

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At 10:44 AM 10.23.2002 -0400, Jud wrote:
>
>
>-----Original Message-----
>From: Steve Warwick <ukla@attbi.com>
>To: <freebsd-questions@FreeBSD.ORG>
>Date: Wed, 23 Oct 2002 00:07:57 -0700
>Subject: Setup: UDMA133 - recognized?
>
>Hi, 
>
>I noticed that during boot ad0 is "limited to UDMA33" - I have UDMA133
>motherboard and drive so, is this really true?
>
>TIA
>
>
>Steve
>
>
>***********************************************
>
>It is really true that something isn't allowing 
>your hardware to run at UDMA133.  Do you have a 
>cable that supports ATA/UDMA 133?  Have you done
>any settings in /boot/loader.conf or elsewhere
>regarding DMA?  What version of FreeBSD are you
>using?  (A dmesg might be nice.)
>
>Jud
>

Also, see my earlier post. If you happen to have an older CD-ROM drive on
the same cable that is fooling the system, that will do it. From a
machine's dmesg:

ad0: 38166MB <ST340016A> [77545/16/63] at ata0-master UDMA100
ad1: 12971MB <WDC WD136AA-35BAA0> [26354/16/63] at ata0-slave UDMA66
ata1-master: DMA limited to UDMA33, non-ATA66 compliant cable

The cable IS compliant, but if I change the CD-ROM drive to a newer one,
it's okay.

Best regards,
Jack L. Stone,
Administrator

SageOne Net
http://www.sage-one.net
jackstone@sage-one.net

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