[CentOS] CentOS 5.4 x86_64 only detects 32GB RAM while Fedora x86_64 correctly lists 128GB

Marcelo M. Garcia marcelo.maia.garcia at googlemail.com
Mon Dec 7 12:58:26 UTC 2009


Diederick Stoffers wrote:
> Hi,
> 
> We have a new 24-core Dell PowerEdge R905 server with 128GB's RAM. The 
> 64 bits version of Fedora 12 lists the correct amount of 128GB, CentOS 
> only finds 32GB (and so does Scientific Linux). I would much prefer to 
> use CentOS (most of the software we use is specifically designed for 
> CentOS). Does anyone know what is causing this/how to fix it?
> 
> Many Thanks,
> 
> Diederick
> 
Hi

Very strange. I have a Dell Precision T7500 with 48GB of memory and 
CentOS-5.4 finds everything:
kalyke (Linux)$ uname -rm; free
2.6.18-164.6.1.el5 x86_64
              total       used       free     shared    buffers     cached
Mem:      49453972   48273592    1180380          0     219116   41775056
-/+ buffers/cache:    6279420   43174552
Swap:     50331604          0   50331604
kalyke (Linux)$

Regards

mg.



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