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Date:      Tue, 26 Oct 2004 17:25:13 +0200
From:      fandino <fandino@ng.fadesa.es>
To:        freebsd-current@freebsd.org
Subject:   Re: FreeBSD 5.3b7and poor ata performance
Message-ID:  <417E6C59.1020404@ng.fadesa.es>
In-Reply-To: <200410251837.58257.Thomas.Sparrevohn@btinternet.com>
References:  <14479.1098695558@critter.freebsd.dk> <417D25E8.6080804@ng.fadesa.es> <200410251928.01536.victor@alf.dyndns.ws> <200410251837.58257.Thomas.Sparrevohn@btinternet.com>

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Thomas Sparrevohn wrote:
>>>"Changes the DMA speed to 66 - The Controller is a 100 controller and the
>>>disks are 100 Disks but I think the default for the controller is 66 and
>>>hence there are most likely a small initialisation difference between
>>>Linux, NetBSD and FreeBSD"
>>
>>Hi
>>
>>please can you post how do you solved the problem?
>>
> atacontrol mode <channel> DMA4 DMA4
> atacontrol mode <channel2> DMA4 DMA4
> 
> The reason is that the motherboard only supports ATA100 on two out of four IDE 
> channels and hence you need to force the two other channels to run at DMA66 

Thomas, are you sure?

http://public.planetmirror.com/pub/asus/mb/socka/kt133a/a7v133/e688_a7v133.pdf

On page 36 asus clearly state ATA100 support for all ata devices and promise
controller is ATA100 enabled



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