Here are the specs for your computer. Disk space has nothing to do with memory. If you are running low on disk space, you could install another hard drive, internal or external. I see you have 2 gigs of memory now, some being shared with your video. The machine hold 4 gigs, but XP 32 bit operating systems can only utilize 3.5 gigs. You could add another 1 gig if you want.