On Sun, Apr 22, 2007 at 01:14:17PM +0400, Artem Kuchin wrote: > > >>the number do not change with or without PAE > >> > >>Maybe i look in the wrong place? > >> > > > >I'm not going to waste my time explaining for the hundredth time how > >the x86 memory layout works. If you want to recover the missing > >256MB, go look in your BIOS for an option about memory hole remapping. > > No need, i know this stuff. Problem is that asus p5p800-vm bios does not > have such option (no memory remapping support in chipset) > , so, and simply assumed that in PAE mode this simply > does not matter and it will give me whole 4GB. Isn't it so? > Is it true for 64bit mode (amd64)?
It is not so for either of PAE or 64-bit mode. What those give you is the ability to address memory above the 4GB limit. In order to access memory below the 4GB boundary that is shadowed by various I/O-devices, the RAM will have to be remapped to somewehere else. So if you could remap the memory then PAE or 64-bit mode would give you the ability to access it. If you can't remap it you can't get hold of it. -- <Insert your favourite quote here.> Erik Trulsson [EMAIL PROTECTED] _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
