>> What are the latencies of the different sticks? > I can get that from the Crucial site for the new ones. Don't know if I > can tell for the old ones. I suspet this could be the issue...?
Very likely. Without seeing the kit in question, one can only guess - but my guess is that the memory timings are taken from the new DIMMs, and those are faster than the old ones. Running memory above its rated speed is likely to end in tears... You could manually set the memory timings to accomodate both sets of memory - but your machine will probably be a lot perkier if you just discard the slower sticks. Vic. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------