benson.gs wrote:
> I just recently added a 2GB 1066MHz DDR3 PC8500 memory to my laptop
> which now has a total physical memory of 4GB. Checked if the Vista
> recognized the added RAM and the System info shows 4GB. Likewise, the
> Memory diagnostic tool reported "No errors found" in the 2 x 2GB memory
> modules. However, the task manager reports total physical memory is only
> 2516 MB and cache is reported at 1173 MB. Can somebody in the forum
> enlighten user of what’s going on? Does this indicate that only 2.5GB is
> "used" by Vista? Where is the 1.5GB RAM?
>
>
> I just recently added a 2GB 1066MHz DDR3 PC8500 memory to my laptop
> which now has a total physical memory of 4GB. Checked if the Vista
> recognized the added RAM and the System info shows 4GB. Likewise, the
> Memory diagnostic tool reported "No errors found" in the 2 x 2GB memory
> modules. However, the task manager reports total physical memory is only
> 2516 MB and cache is reported at 1173 MB. Can somebody in the forum
> enlighten user of what’s going on? Does this indicate that only 2.5GB is
> "used" by Vista? Where is the 1.5GB RAM?
>
>
A 32 bit operating system normally can use approximately 3 gigs of
RAM…it’s usually about 3.25 gigs or so
To use more RAM you’d need a 64bit operating system
or PAE
