RAM differences

Pauli Borodulin pauli.borodulin at uta.fi
Fri Apr 14 15:18:04 CDT 2006


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Heya!

Troy Hakala wrote:
> We just bought a Dell PowerEdge 850 to test Dells versus our current  
> vendor's hardware. The other machine has a Supermicro PDSMi  
> motherboard. Both machines have 4GB RAM.  /proc/meminfo on the  
> Supermicro machine reports 3.7GB and the Dell reports 3.1G.
> [...]

> Why? Can it be fixed by fiddling with the Dell's BIOS settings?

This is due that Dell's motherboard reserves a bigger address space from
that 4GB address space for PCI, than Supermicro's motherboard.

Enable PAE in your kernel, and you will get the rest available memory in
use.


Br,
- --
Pauli Borodulin <pauli.borodulin at uta.fi>
Systems Analyst, tel. +358 3 3551 7892
Computer Centre / Room B4179
University of Tampere, Finland
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