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
