windows 32 bit can only access about 3.5 meg of memory if you want to run
more
you need the 64 bit OS.
"Andrew McNab" <AndrewMcNab@discussions.microsoft.com> wrote in message
news:C28EC6C8-EAE6-4087-8C8D-F8354E669D18@microsoft.com...
> I've been running Vista Ultimate on 2GB of RAM fine but decided to upgrade
> to
> 4GB because the prefetch cache got up to 1.4GB. My BIOS reports 4075MB of
> installed and useable RAM. Supports up to 8GB.
>
> Windows Vista only reports 3528MB RAM and results in a Blue Screen crash
> when logging in or shortly afterwards. I tested the 2 new SIMS by
> themselves
> and tried combinations of the original 2 SIMS and either of the 2 new SIMS
> to
> make 3GB. Windows reports 3GB of RAM and runs fine.
>
> I was wondering if there was an issue with a certain amount of memory the
> OS
> can work with at this point. I'm running Vista Ultimate with the latest OS
> updates.