Quote: Originally Posted by
Nermin 
hah I couldnt find any information about ram memory :S and I run memory diagnostic tool and there are no errors...i opened my computer case and all is ok but the problem is still here ...
G'Day Nermin,
You're gonna need to bite the bullet Mate and just accept that you will never use the 4GB of RAM that you have installed.
I recently upgraded from 1GB to 4GB of RAM, but before I did, I did a lot of research on this Forum and came to the conclusion that it wasn't worth griping about 'lost capability' so long as the stability of my system was improved by the extra 2+GB that I now have. My system is all the better for it.
For your own peace of mind that 'nothin ain't broke', check out your System Information .......Click on Start>All Programs>Accessories>System Tools>System Information. Here's a small snip of mine;
You can also confirm what RAM you have 'installed' via the Welcome Centre, eg;
There you have it. I would suggest that your situation with Vista x32bit, is exactly the same as mine.....Yes you can max out your installed RAM to 4GB, but you will never use it all, at most you might make 3.2GB.
Hope this helps clarify things for you.