No
The space is linear in physical space and if you have PCI/64
capable devices they can access it all too.
(In fact 64 bit addresses have been supported even in 32 bit wide PCI
since day 1).
On Thu, 2 Aug 2001, Kenneth Wayne Culver wrote:
> BUT, don't the motherboards also have to support this? And isn't it only
> supported through some wierd segmentation thing?
>
> KEn
>
> On Thu, 2 Aug 2001, John Baldwin wrote:
>
> >
> > On 02-Aug-01 Kenneth Wayne Culver wrote:
> > > Also, the PIII CAN'T natively support more than 4GB of ram. If a
> > > particular PIII motherboard supports this, then it's using some kind of
> > > wierd chipset that allows this to happen. 4GB is the limit with a 32 bit
> > > chip I believe; and the PIII is a 32-bit chip.
> > >
> > > Ken
> >
> > Go look at some Intel docs. P6 chips since the Pentium Pro (yes, before
> > Pentium II) have supported PAE which allows for a 36-bit physical address.
> >
> > --
> >
> > John Baldwin <[EMAIL PROTECTED]> -- http://www.FreeBSD.org/~jhb/
> > PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
> > "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
> >
>
>
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