[CentOS] Re: 4gb ram shows as 3.3gb

[Scott Silva]

Martin Marques spake the following on 7/26/2007 1:46 PM:
> Tim Verhoeven wrote:
>>
>> Another option is that you try to boot with the PAE kernel. That
>> kernel is made to go over the 4GB boundary on 32bit.
> 
> Didn't work for me. :-(
> 
> [root at newweb ~]# free
>              total       used       free     shared    buffers     cached
> Mem:       3237236    1865956    1371280          0     263588    1279996
> -/+ buffers/cache:     322372    2914864
> Swap:            0          0          0
> [root at newweb ~]# uname -a
> Linux newweb.matematica 2.6.18-8.1.8.el5PAE #1 SMP Tue Jul 10 07:50:36
> EDT 2007 i686 i686 i386 GNU/Linux
> 
The board has to support it. It has to be able to map the underlying memory to
a higher address space, and the bios has to notify the OS where this is. Are
you using a desktop board as opposed to a server board?


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