TOTAL RAM?

[Tim Slattery]

A little note to that: dep is enabled by default on xp/sp2, which
automatically enables pae. So many people already has it enabled even
without the /pae switch.

True, but PAE is supported on XP and Vista *only* to enable DEP, not
to extend the address space. No 32-bit version of XP or Vista has more
than a 4GB address space.

 

[Patrick Keenan]

--
-=- penciline -=-




--My workstation came with 2 DIMM's of 512MB equalling 1GB RAM. I
upgraded
by installing 2 kits of 2x2GB RAM (i.e. 4 DIMM's of 2GB) which is how I
got
the 9GB odd number. I was hoping to maximize my usage of RAM and there
was
nothing in my hardware documentation that said I could not do it. Also,
on
that particular manufacturer's website that I mentionned it said you would
get OEM Vista Business and up to 16GB RAM on Dual AMD Opteron Processors.
I
think in the customization pages it mentionned that you could get a
certain
amount of RAM per processor.

I really appreciate everyone's input on this issue and I did not search
everywhere before making the RAM purchase, but I knew I needed to upgrade
to
at least 2GB RAM for certain software installations to process. It was
recommended that I use 4GB and I thought into the future that maybe more
RAM
would not hurt. But I see this was a waste of hardware and cash. (I read
on
a msdn post that you could use /PAE switch in boot.ini to remove the glass
ceiling of the 4GB RAM limitation on XP).

You may misunderstand this. The /PAE switch will not change the hard
limits of 32-bit addressing on XP.

HTH
-pk

 

[Peter Foldes]

http://msdn.microsoft.com/en-us/library/aa366778.aspx#physical_memory_limits_windows_server_2003