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

[Scott Silva]

Martin Marques spake the following on 7/27/2007 6:43 AM:
> Scott Silva wrote:
>> 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?
> 
> Yes:
> 
> Handle 0x0000, DMI type 0, 20 bytes.
> BIOS Information
>         Vendor: Intel Corp.
>         Version: EV91510A.86A.0482.2006.0222.2350
> 
> 
Many desktop boards are designed for Windows, and linux isn't quite up to
speed on them. You usually need to run Cutting edge distros like Fedora on
desktop boards to get the most out of them.

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