This pc had 4 sticks of 512 meg in dual mode. 1 died so i removed the 2 of them and left 512 in slots 1 and 3.
That worked ok.
I took them out as it was underpowered. Vista premium x64.
I then got 2 sticks of 2 gig (2x2) an and put them in slots 1 and 3.
Nothing not a beep.
Any ideas?