From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Bryan K. Walton" <thisisnotmyid@tds.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: problems with 1gb ddr memory sticks on linux
Date: 08 Aug 2002 20:46:52 +0100 [thread overview]
Message-ID: <1028836012.28883.61.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <20020808163952.GJ16225@weccusa.org>
On Thu, 2002-08-08 at 17:39, Bryan K. Walton wrote:
> Dimm slot 1 = 256MB DDR PC2100 and
> Dimm slot 2 = 1024MB DDR PC2100
>
> and the /proc/mtrr shows:
>
> casa:~# cat /proc/mtrr
> reg00: base=0x00000000 ( 0MB), size= 512MB: write-back, count=1
Your BIOS misconfigured the memory control registers. You may find
swapping the DIMMs over fixes that or a BIOS update. If you don't want
to update your BIOS then doing
echo "base=0x00000000 size=0x60000000 type=write-back" >/proc/mtrr
should override the BIOS setting and make your machine speed up.
next prev parent reply other threads:[~2002-08-08 18:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-08 16:04 Bryan K. Walton
2002-08-08 16:19 ` Kasper Dupont
2002-08-08 16:52 ` Richard B. Johnson
2002-08-08 17:47 ` Alan Cox
2002-08-08 16:39 ` Bryan K. Walton
2002-08-08 18:09 ` H. Peter Anvin
2002-08-08 19:46 ` Alan Cox [this message]
2002-08-08 19:56 ` Bryan K. Walton
2002-08-08 17:50 ` Mike Dresser
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