Medion Titanium MD 8386


W XP. 512 mb RAM 250 Gb HD

When I first bought this PC in December, I was horrified when it revved up
like a hoover when I started it up. Fortunately this disappeared after
everything loaded.

Now it is doing this more and more when under pressure.

I presume this is something to do with running out of RAM and using the HD
as virtual memory?

If so I am having trouble finding any information on what type of RAM to get
to upgrade.