OT: Compaq Proliant "loses" memory when more PCI cards installed???
Thomas Cameron
thomas.cameron at camerontech.com
Mon May 16 18:34:58 UTC 2005
On Mon, 2005-05-16 at 18:31 +0200, Alexander Dalloz wrote:
> Am Mo, den 16.05.2005 schrieb Thomas Cameron um 17:58:
>
> > I noticed that when it boots, the system counts 4GB memory, but after
> > POST is says that there are only 3.6GB. I called HP about it and they
> > said that the system reserves a chunk of memory for each PCI card. I
> > pulled the video and sound cards, and sure enough, the system saw more
> > memory.
>
> This is a limitation of the 32bit world. The system I/O address space
> has to be mapped into the available memory space, from top limit 4GB
> down. Often this is even a fixed memory space of 512MB.
So then even if I get a different board I will likely see the same
results, huh?
> > So my question is - what's up with this? Why do none of my other
> > machines act this way? I've got workstations from Dell and other
> > servers from HP that don't do this. Those machines don't have PCI-X
> > slots though. I assume that is relevant. Anyone got an explanation as
> > to why this machine is reserving so much darned memory for the PCI
> > cards? I am seriously tempted to yank the motherboard and drop in
> > another one from Intel or someone like that. I paid a lot of money for
> > the 4GB memory and I want all of it, you know? :-)
>
> Those other systems may have PAE implementations in hardware / BIOS?
Ah, I think the Proliant DL series does... That's why I didn't see it
then.
Thanks Alexander,
Thomas
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