what info do i need to let you have ,so that i can add memory to an existing xp ?
i have a 4cpu processor, 3.00 Ghz with 2.99Ghz ,512 memory.
it's a dell dimension 4600, if that helps...
i want to run 1GB memory.

i'm confused as to what to get....help appreciated.

Point your browser to the URL below -

Crucial Memory Advisor

Select System Scanner and let it scan your system.

There are a number of RAM calculators online.
I usually use the one at Crucial.com
If you go there and look up Dell 4600, you get ***this***.

Look at their recommended RAM and that tells you the specs of the RAM you need, which is

You can order the RAM from Crucial or get it somewhere else, like Newegg. This type of memory should be added in pairs, which is why Crucial sells it that way (2x1GB = 2GB).

I'd suggest you add more than 1 GB of memory.
2 GB would be fine for XP.

thanks so much ,guys !

you make it so easy for the rest of us !