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

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Message-ID: <46682FED.2080506@zytor.com>
Date:	Thu, 07 Jun 2007 09:18:53 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andrew Lyon <andrew.lyon@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] Re: 4Gb ram not showing up

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
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