Quote Originally Posted by 'Freddie',index.php?page=Thread&postID=72992#post7 2992
What did you set them to? You need to assign the different instances of WoW to different cores. You could assign the first two WoWs to 0 and 1, and the last two WoWs to 2 and 3. Or assign each WoW to a separate core.

A 32-bit OS can't use the full four gigs but it may be able to use more than three. The exact amount depends on drivers, the amount of video ram on your video card, etc. (The higher your video ram, the less system ram will be usable.) For example the PC I'm using now is running 32 bit XP with 4 gigs of system RAM, and the OS can see 3582 MB of that RAM. 4 gigs is 4096 MB so I'm getting use of 510 MB of the last gig or about half of it.
I set all my WoW instances on different CPU, the main on 0 and then the others on 1, 2 and 3 respectively.
So the higher my video card ram the lower 'regular' RAM will be used? My graphics card is 756 I believe (unless I'm talking about something else, not really too bright when it comes to details like this on hardware).
Anyway, I'll check just how cheap it is and if it's cheap enough I'll buy 2GB on Thursday and see if that fixes my problem!