what make is your mother board??
ive just bought some ddr for mine and wasnt sure what to put in it
i just went on my motherboard home page typed in the number and
found the spec out
turns out i cant use 1gig sticks,and a max of 2 gig so i got 4 512's instead but can use ddr 400 instead of the 266 that was in it.
also there maybe new drivers for ya board on the site