and about memset, been playing with that yesterday, but i have some doubts. tRDD is RAS# to RAS# Delay in bios? tRFC is Row Refresh Cycle Time in bios? Write to Precharge Delayed is Write Recovery Time is bios? tRTP is Read to Precharge Time in bios right? I tried tweak memory timings with memset and had good results, but then i put then in bios, then i reboot do a bandwidth test or check memset and their not he same settings that i putted in bios..