Quote: Originally Posted by
Nermin 
Finally I opened my case and put the RAM out and I mixed it and put it again in the slots. Now its ok again:
Installed Physical Memory (RAM) 4,00 GB
Total Physical Memory 3,25 GB
Available Physical Memory 2,35 GB
Total Virtual Memory 6,68 GB
Available Virtual Memory 5,68 GB
I spent whole day thinking is it broken or not. Now Im finally calmed. I have one final question: I cant use all my RAM on Vista x32 but only on Vista x64? THANK YOU ALL VERY MUCH.....
That really depends on your motherboard.
What you need to do is go into the BIOS (usually by pressing the <DEL> key when you power up), and then look at "System Information" (or something similar). That should show you the "Total Installed" and "Usable" amounts of RAM. If "Usable" ram is in the region of 3.25GB (3329MB), then even installing Vista x64 would not change that. The deficit is taking place on a hardware level.
Unless the motherboard supports memory remapping, this will always be the case. My old computer (Venus) used an ASUS motherboard, and even with Vista x64 only showed 3.3GB usable. My current rig (Prometheus), also uses an ASUS board, and it shows 4094MB available of 4096MB installed. When I add more, it'll probably show 8191MB available of 8192MB...