MEMORY, What is it good for.....

...absolutely something.
I'm sure of it, but was wondering...
I just added 4Gb to my 1.8MHz single G5
I was wishfully thinking it would help speed up things using Archicad. (the min. spec is 1.5 Gb... which I had before upgrading).
Did a few tests before and after installing the memory .... with no apparent changes.
The new memory appears in "about this mac" status OK. I reset the PRAM.
Is there a way to check if the memory is working?
Am I dreaming that increasing ram will speed things up??
Should I bag this PPC and get a new iMac???
Thank you for any insight.
Cheers,
Marco

Virtual memory size is what is set aside for the applications use in case it is needed. The figure is large
as it represents the max that the system will allow the application to use. It does not represent how much is currently being used by the application. I excerpted this from an MacOSXHints article I linked to below, I think it explains the Activity Monitor memory information very well:
PhysMem is just that -- physical memory -- your installed RAM.
1. Wired = memory allocated that shouldn't/can't be swapped/paged out (ie its locked into memory -- possibly portions of the OS code for example).
2. Active = allocated memory that has been accessed during last N seconds.
3. Inactive = allocated memory that hasn't been accessed during last N Secs (quite likely to be first candidates for being swapped/paged out if memory being demanded).
4. Used = Wired + Active + Inactive
5. Free = memory that isn't allocated to any process or the kernel.
6. VM = Virtual Memory ( a fictictous amount of memory that represents a processes upper potential limit for its memory allocation or requirements -- very raely ever requested).
http://64.233.169.104/search?q=cache:OItMJyvxtlUJ:www.macosxhints.com/article.ph p%3Fstory%3D20010613140025184virtual+memory+mac+os10.4&hl=en&ct=clnk&cd=12&gl=us&client=safari

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