Just bought 40 sticks of 512Mb to put 20 machines up to 1Gb and am having a mare.
All identical machines, first one I did has died and won't start anymore, second machine seems fine, third machine checks the memory and only finds half and so does windows. I run CPUz and it tells me there is 2 sticks of 512. Haven't taken a stick out yet to see if it goes down to 256Mb but the nice Crucial Memory tool told me these would work okay.
They are double sided which I know some MB's don't like.
Not looking forward to next week. :evil: