Hi I recently got OCZ Plats (2X512mb) that do 2-2-2-5 at stock 2.6V 200fsb. I want to get the ram running either 1:1 (290fsb) or 5:6 (240 fsb) with my Opteron with tight timings. Now I gave it a shot and although windows boots its not stable at 2.5/3/3/7 @ 240fsb, didnt bother trying 290fsb. Now heres a picture of all the settings I can have - it doesnt show you there but I can set memory volatge upto 2.85V http://img189.imageshack.us/img189/7113/18tn.jpg Theres 2 more settings of 1,H/W memory hole Remapping 2,MTRR mapping mode I would like to get the ram running either 1:1 or 5:6 with the tightest timings possible, what settings should I experiment with? The previous user had this at 2.5/3/3/7 easily at 240fsb and when tweaked he could manage this at 300fsb! Any help appreciated - I know its a little difference when changing these fsb's but I like to run things as fast as I know it can.