You can install a maximum of 2 gb of RAM onto your machine, according to the Dell website.
Here, take a look at this page. Your system may allocate a small amount of memory for your graphics. I suggest you read this, as well, if you intend to install the modules yourself.
Go to http:// www. Crucial .com and run a scan on your dell. They have( DDR) 2 gig(1gigx2) kits for as low as 59.00 PC3200 and PC2700 Which will both work in your system.