I just added 2 additional sticks of RAM to my PC for a total of 384MB. I've noticed nothing in terms of speed increases, but Im still happy to finally get this thing filled up. When I first booted up after installing the memory, the system recongized the additional memory and checked it an it said 'Memory OK'. But afterwords, but before windows started to load I got a '164 - Memory size error' . But still windows continued to load, I restarted and didnt get the error again, so Im assuming everythings alright. And when I goto the system properties it does say 384MB. When I got the error I thought my heart stopped there for a second, but a least it all worked out.