linux-kernel - Re: [RFC][PATCH] Re: 4Gb ram not showing up

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Message-ID: <f4527be0706071037l5278fe61v1a733ab874aec136@mail.gmail.com>
Date:	Thu, 7 Jun 2007 18:37:21 +0100
From:	"Andrew Lyon" <andrew.lyon@...il.com>
To:	"Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH] Re: 4Gb ram not showing up

On 6/7/07, H. Peter Anvin <hpa@...or.com> wrote:
> Andrew Lyon wrote:
> >
> > Could this also cause a system to be unstable? my abit athlon64 at
> > work will not run x64 with more than 1gb ram, and i have a colo server
> > with supermicro & 2 x dual core xeons that will not run with more than
> > 2gb.
> >
> > Both systems have long uptimes but if i add ram they crash within
> > minutes of booting.
> >
>
> That's much more likely to be caused by bad memory bus layout so that it
> doesn't handle the higher loading.
>
> Run memtest86+ on the expanded memory for some time.
>
>         -hpa
>

I have run memtest86+ for days at a time on both systems with no errors at all.

broken hardware i guess, i am not surprised about the abit board, ive
had nothing but trouble with abit motherboards and do not use them any
more, but the supermicro is a xeon server board and i was using
kingston ram, i wouldnt expect that to have issues.

latest bios on both.

Andy
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