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 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?
Thomas
Alexander
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