Memory limit on 2850?

[David_Kewley at Dell.com]

> -----Original Message-----
> From: linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Jeff Larsen
> Sent: Monday, November 05, 2007 10:45 AM
> To: linux-poweredge-Lists
> Subject: Re: Memory limit on 2850?
> 
> On 11/5/07, J. Epperson <Dell at epperson.homelinux.net> wrote:
> > On Mon, November 5, 2007 12:26, Kurt_Olsson at dell.com wrote:
> > > The cause of the limitation is the Lindenhurst chipset.  
> The chipset
> > > only supports 8 ranks of memory.  The 4 GB memory DIMMS 
> have density
> > > issues which require them to be dual ranked, thus 2 ranks 
> per DIMM use
> > > all 8 ranks available to the system. You could also 
> populate all 6 slots
> > > with 4x single rank DIMMs and 2x dual.
> > >
> >
> > So I could fill the two empty slots with 4Gb and get to 
> 16Gb?  Or is it
> > possible that the 2Gb modules are dual rank?  My Dell 
> presales guy is
> > saying I have to pull the 2Gbs out and put in 4x4Gb.
> 
> If you look up your original system config on the support site, it may
> tell you if your existing chips are single or dual rank. Or you may
> have to open it up and check the part numbers. If they are single
> rank, then yes, you can add 2x4GB dual rank.

You can also get the part number by:

  omreport chassis fru

or

  dmidecode | grep -B2 -A20 "Memory Device"

David