> Hi Rudolf, > > thanks for the reply, but isn't this more or less what decode-dimms.pl does too? That > is my understanding. I know this is probably a little OT on this list, but I was hoping > someone could take a look at the listing from decode-dimms (http://jessen.ch/files/spd-decoded) > and explain to me (very slowly) what makes this DIMM 266MHz and not 333MHz ? Hi again, I have time now after exams and yes now I know where to look. :) Cycle Time (SDRAM) highest CAS latency 6ns 6ns -> 166MHz * 2 = DDR333 * 8B -> PC2666 (2700) So the DIMM is capable of running at "333MHz". Did you tried to upgrade the BIOS? regards Rudolf