memory reported less than installed

[Steven Davies-Morris]

Steven Davies-Morris wrote:
> Bill Walton wrote:
>> Rashkae wrote:
>>> I'm on a Gutsy 64-bit system with 3GB of memory.
>>> 
>>> Free:
>>> 
>>> Mem:       3097740    3068932      28808          0     254064
>>>  1468900 -/+ buffers/cache:    1345968    1751772 Swap: 3903712
>>>  0    3903712
>>> 
>>> System Monitor, System tab, Hardware: 3.0 GiB
>>> 
>> IIRC, when I had 2GB installed, System Monitor reported 2GiB. 
>> Now, with 10 GB installed, it's 9.7 GiB.
>> 
>> free reports: total             used          free shared buffers
>> cached Mem:      10190576     582064 9608512 0      17072
>> 290696 -/+ buffers/cache:     274296 9916280 Swap:      6040400
>> 0    6040400
>> 
>> Total / 1024 / 1024  = 9.69, so I'd say David Fox hit it on the 
>> head when he said "System Monitor would simply report the same 
>> total memory value as "free" does."  But that still doesn't 
>> explain where the rest went or why it's not 'taken out' when the 
>> installed amount is < 4GB.  I remember reading that Windows may 
>> report 3.5GB or something close when there's 4GB installed. I 
>> wonder if there's something similar going on here.  Anyway... 
>> what's 300 meg among friends?  ;-)  If anybody's got 4GB or more 
>> installed, it would be nice to hear what you see.
>> 
>> Thanks to all, Bill
> 
> I'm running AMD64 on an Athalon 5200+ CPU. I currently have 4gb 
> installed on the board. System Monitor reports 3.8gb.

Following up:
BIOS reports 4096mb.

I have a seperate PCI/Express video card with its own 256mb of RAM,
so I have the onboard video disabled.
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