Thanks for the Memories

Byron Clark byron at theclarkfamily.name
Sun Nov 29 20:32:42 MST 2009


On Sun, Nov 29, 2009 at 04:14:53PM -0700, Charles Curley wrote:
> Also, I get different reports of available memory. The BIOS reports
> 4096 MB, of which it says 3455 MB are usable. The system uses 128 MB
> of that for the video RAM. finnix-92.1 64 bit says it has 3335
> MB. finnix-92.1 32 bit reports 2906 MB, and Ubuntu 9.10 32 bit sees
> 2896 MB.
> 
> Memtest86+ tests in three chunks of memory: 144K to 2048 MB, 2048 MB
> to 2943 MB, and 4096 MB to 4608 MB. The first two are contiguous, the
> third is not. Ignoring the 144K, that adds up to the 3455 MB the BOIS
> reports as usable.
> 
> Questions:
> 
> * Where is the rest of my 4 GB? I paid good money for those 641MB!
> 
> * Why the gap between the memory chunks? Not that it matters, Linux
>   seems able to use them anyway.

This post seems to show a similar problem, the fix was a BIOS setting:
http://madduck.net/blog/2009.11.18:ram-reclaimed-mystery-solved/

-- 
Byron Clark




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