Re: AMD Athlon64 X2 Dual-core and 4GB

[thockin]

On Fri, Oct 28, 2005 at 09:30:51AM -0600, Eric W. Biederman wrote:
> > Thus, the question - would I be able to use whole 4G RAM with dual-core amd and
> > kernel with SMP compiled for i686?

Why would you use a dual core AMD in 32 bit mode?  Just build an x86_64
kernel.

If you want to use 4GB in 32 bit mode, you *need* remapping (or you lose
part of your memory).  Remapping means you have MORE than 4 GB of physical
address, which means you need PAE to use it at all.
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