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

Fri Jul 27 13:43:20 UTC 2007
Martin Marques <martin at bugs.unl.edu.ar>

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


-- 
  21:50:04 up 2 days,  9:07,  0 users,  load average: 0.92, 0.37, 0.18
---------------------------------------------------------
Lic. Martín Marqués         |   SELECT 'mmarques' ||
Centro de Telemática        |       '@' || 'unl.edu.ar';
Universidad Nacional        |   DBA, Programador,
     del Litoral             |   Administrador
---------------------------------------------------------