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Message-Id: <1255533865.19998.214.camel@giskard>
Date: Wed, 14 Oct 2009 11:24:25 -0400
From: Bernie Innocenti <bernie@...ewiz.org>
To: Tony Vroon <tony@...x.net>
Cc: Mark Lord <liml@....ca>, Harri Olin <harri.olin@...il.com>,
linux-ide@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>,
sysadmin <sysadmin@....org>
Subject: [SOLVED] Re: sata_mv 0000:03:06.0: PCI ERROR; PCI IRQ
cause=0x30000040
El Thu, 08-10-2009 a las 18:09 +0100, Tony Vroon escribió:
> On Thu, 2009-10-08 at 12:42 -0400, Bernie Innocenti wrote:
> > El Tue, 06-10-2009 a las 23:13 -0400, Mark Lord escribió:
> > I want to try reducing the frequency of the PCI-X bus, but the BIOS does
> > not seem to provide a setting for it. Is there another way?
>
> Generally this is done with a physical jumper on the board instead.
> You'll find it near to the bridge chip, which is almost always by NEC.
> Another technique to slow the bridge down is to insert a regular PCI
> card in the other slot (these bridges tend to offer 2 or 3 slots). As
> the weakest link, it'll drag everything down to 33MHz.
> An old PCI-X 66MHz-only card may prove helpful here as well. You don't
> have to drive it in any way; getting power to it is sufficient.
Hurray! It seems we've fixed our stability issue at last.
We forced the bus speed down to PCI-X 66MHz for both buses by shorting
pins 1-2 of the on-board jumpers.
--
// Bernie Innocenti - http://codewiz.org/
\X/ Sugar Labs - http://sugarlabs.org/
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