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Date:      Tue, 3 Jan 2023 15:18:24 +0100
From:      Eivind Nicolay Evensen <eivinde@terraplane.org>
To:        Eugene Grosbein <eugen@grosbein.net>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Memory question
Message-ID:  <20230103151824.196420f1@elg.hjerdalen.lokalnett>
In-Reply-To: <20230103143716.703d42ca@elg.hjerdalen.lokalnett>
References:  <20230103140404.5f71b0ad@elg.hjerdalen.lokalnett> <c25ca623-a587-b8cf-927f-4b7978ea2329@grosbein.net> <20230103143716.703d42ca@elg.hjerdalen.lokalnett>

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Den Tue, 3 Jan 2023 14:37:16 +0100
skrev Eivind Nicolay Evensen <eivinde@terraplane.org>:

> Den Tue, 3 Jan 2023 20:09:14 +0700
> skrev Eugene Grosbein <eugen@grosbein.net>:
> 
> > 03.01.2023 20:04, Eivind Nicolay Evensen wrote:
> >   
> > > This might be more related to a bios setting or issue, but I hope
> > > somebody can give me hints in the right direction to remedy or
> > > at least diagnose this issue further.
> > > 
> > > I installed more memory in one machine and now I see this
> > > in dmesg:
> > > 
> > > real memory  = 25769803776 (24576 MB)
> > > avail memory = 8237150208 (7855 MB)
> > > 
> > > Real should be right, from before there were two 4 GB dimms in
> > > there, and I inserted two more 8 GB ones.
> > > 
> > > Transcribed from BIOS:
> > > 
> > > DIMM(s)			1		2
> > > 3		4 Installed Size		8192
> > > 	8192		4096		4096 Enabled
> > > Size		8192		8192
> > > 4096		4096 Total Size		24576
> > > 
> > > I was wondering if the reason could be that this machine has been
> > > updated since older versions and bootloader may be old or
> > > whatever, so I also tried booting a linux. However, that also
> > > only uses 8 GB, and says (at least in a way I understand) less
> > > about what it can really see.
> > > 
> > > This is amd64 FreeBSD 13.1.
> > > 
> > > Is there any way I can use the rest of the memory? Or at least
> > > find out which dimms it is actually using?    
> > 
> > I was in similar situation once. There was Atom-based hardware setup
> > with CPU not having embedded memory controller; instead, it used
> > memory controller on motherboard. That memory controller had similar
> > limitation. One cannot overcome it.
> > 
> > You should specify your hardware.
> > 
> >   
> 
> Thanks for the comments.
> 
> Here's the dmesg:

I received a private reply that dmidecode would be
of better help. Since the output is rather large I put
it here:
  http://www.stigaas.no/m/dmi.txt




-- 
Eivind Nicolay Evensen



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