tedjf1;647235 Wrote:
> Just to you and everybody know.
>
> On 3/13/2008, I installed the extra memory with no problem and also no
> vista
> activation was required.
>
> To recap, I replaced all four 512 MB (DDR2 533) memory sticks which was
> only
> 2 GB to four 1 GB (DDR2 667) which now gives me 4 GB (Really 3325 GB in
> Vista)
>
> Thanks!
Actually, it's not Vista that limits you to 3325MB of memory. It is
various hardware devices on your motherboard that is using up that
deficit of 771MB.
The only reason why you never noticed it before is because those same
hardware devices mapped their memory addresses to the upper limits of
the 4096MB mark, and you only previously had 2GB. Now that you have a
physical 4GB installed, you have the hardware and your memory
overlapping, and the BIOS gives preference to the hardware devices,
which is why Vista only has 3325 system memory. This would hold true in
ANY operating system.
The memory mappings happen on a hardware level, even before the OS gets
loaded.
--
dzomlija
_____________________
Peter Alexander Dzomlija
-Do you hear, huh? The Alpha and The Omega? Death and Rebirth? And as
you die, so shall I be Reborn...-
:cry:-U--nfortunately, my rig (As seen in
http://www.vistax64.com/general-disc...tml#post533290)
went south thanks to mother nature and a lightning bolt to the mains
supply that my UPS could not stop. Now I'm just waiting for the
insurance payout, so I can build a new machine.-'
' (
http://s229.photobucket.com/albums/e...zomlija/Venus/)