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From: Don Bowman <don@sandvine.com>
To: "'Gustafson, Tim'" <tjg@meitech.com>,
	Don Bowman <don@sandvine.com>
Date: Wed, 7 Apr 2004 12:31:02 -0400 
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Subject: RE: FreeBSD 4.9 / Supermicro 7043P-8R / Crashes After 2-5 Minutes
	Of  Uptime
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From: Gustafson, Tim [mailto:tjg@meitech.com]
> Sent: April 7, 2004 11:46 AM
> To: 'Don Bowman'
> Cc: 'freebsd-stable@freebsd.org'
> Subject: RE: FreeBSD 4.9 / Supermicro 7043P-8R / Crashes After 2-5
> Minutes Of Uptime
> 
> 
> > Definitely i would suggest running memtest86 on it for a bit [at
> > least 24 hours], but with the ECC, memory errors would have to
> > be gross to be noticeable.
> 
> Don,
> 
> Thanks for your response, and thanks to Doug White for his 
> response too.
> 
> I got no other information on a serial console or on the 
> regular VGA console
> other than syncing disks and the usual shutdown messages.
> 
> I removed all memory and tried new memory in both 2GB and 4GB 
> amounts.  I
> have removed both processors in turn.  Neither of these helped at all.
> 
> I downloaded a copy of 5.2.1 and installed it onto the 
> machine and it seems
> to be operating smoothly, for the moment.
> 
> Once I was able to keep the machine running under 5.2.1 for 
> more than 5
> minutes, I downloaded and installed memtest and ran it.  It 
> is behaving a
> little oddly.  It will run if I specify 4M of memory, or 128M 
> of memory, but
> gets an immediate page fault if I specify 512M, 1G, 2G or 4G 
> of memory.
> Coincidently, it gets NO errors when run under 4M or 128M.

i would use the 'memtest86', which runs as its own operating
system. http://www.memtest86.com/

Let me know if you want a version which understands the ECC
on this board and will load from FreeBSD loader. I sent
my patches to the author but didn't see them incorporated.

--don