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Date:      Thu, 27 Feb 2003 02:31:52 -0600
From:      Len Conrad <LConrad@Go2France.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: can't get to ATA133
Message-ID:  <5.2.0.9.0.20030227022946.07db1e40@mail.go2france.com>
In-Reply-To: <200302270817.16648.will@unfoldings.net>
References:  <5.2.0.9.0.20030226165710.028ad2f0@mail.go2france.com> <5.2.0.9.0.20030226165710.028ad2f0@mail.go2france.com>

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> > ad4: DMA limited to UDMA33, non-ATA66 cable or device
> > ad6: DMA limited to UDMA33, non-ATA66 cable or device
> > ar0: 39083MB <ATA SPAN array> [4982/255/63] status: READY subdisks:
> >   0 READY ad4: 39083MB <Maxtor 6Y040L0> [79408/16/63] at ata2-master
> > UDMA33 ar1: 39083MB <ATA SPAN array> [4982/255/63] status: READY
> > subdisks: 0 READY ad6: 39083MB <Maxtor 6Y040L0> [79408/16/63] at
> > ata3-master UDMA33
> >
> > Anybody know why TX sees only 33?
>
>The ata driver is quite strict on standards implementation. It could be that
>the promise cables may not comply as strictly with the standard as it would
>prefer. Try getting 80-conductor cables from a third party. Generally
>speaking, buying your own cables is better than using the ones that came
>with the controller anyway, as those are usually el-cheapos, even with the
>most expensive controllers.

One unreported point we later verified was in the TX2000 on-board setup 
util, "Show Drive Status" shows both drives as mode "U6" (is ATA133).

Len


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