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Re: Only 3.6gb of 64gb RAM recognized by 64bit squeeze



On Wed, 09 May 2012 11:19:10 +0200, Seyyed Mohtadin Hashemi wrote:

> Before anybody starts arguing that I don't have 64-bit, this is uname -r
> and uname -m:
> root@n03:~# uname -r
> 2.6.32-3-amd64
> root@n03:~# uname -m
> x86_64

Well put, facts are what matters :-)

> As the subject suggest I have a box that does not utilize the available
> RAM installed. I noticed that only 3.6gb RAM was recognized when I got
> segmentation faults during a simulation. The funny thing is that when I
> remove dims so that only 48gb RAM is available then it works fine, I did
> a 'lshw -C memory' and it shows all the dims at the correct spot (the
> output is attached). BIOS and memtest show and successfully test all
> 64gb.

(...)

Ensure that all of the RAM modules are identical and have been approved/
tested by your motherboard's manufacturer.

You can also try to load a LiveCD of your choice (e.g., SystemRescueCD)  
and check from there, just to discard/confirm this is something Debian-
specific.

Greetings,

-- 
Camaleón


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