Re: Maximum memory available to the OS
- From: "Merv Porter [SBS-MVP]" <mwport@xxxxxxxxxxxxxxxxxxx>
- Date: Thu, 18 Aug 2005 21:49:53 -0500
Hi Mark,
While the web page below speaks about IBM servers, I believe the same
applies to Dell. Basically, the system allocates memory to PCI devices in
your server during boot up. This results in less RAM seen by the OS after
everything is loaded. Seems I remember reading that this occurs when you
put anything over 3GB of RAM in your system.
Memory recognized at POST does not match the amount of memory recognized by
the operating system - Servers and IntelliStation
http://www-1.ibm.com/support/docview.wss?uid=psg1MIGR-50887
--
Merv Porter [SBS MVP]
===================================
"Mark" <Mark@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:97BA4B57-4B9C-4752-9A8F-B31C41D6EEBB@xxxxxxxxxxxxxxxx
> Hi,
>
> I have a Dell PowerEdge 800 server running SBS 2003 Standard, SP1 plus all
> subsequent updates.
>
> I just upgraded the server from 2GB memory to 4GB. The computer recognises
> all 4096 MB on boot (I checked it by going into the system setup), but SBS
> thinks it has only 3328 MB available.
>
> I ran Dell's server administrator to confirm that it reports 4096 MB
> installed, 3328 MB available to the OS.
>
> Is there something I've missed?
>
> Thanks,
>
> - Mark
.
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