Hello, I'm a total noob so I don't even know why I want to do this but... that's why you are here to help I suppose So, I bought a new pair of dual channel RAM. They don't have any info on them except that they are 2x512 MB dual paired, work at 667MHz and have CL5 latency and they are Goodrams. I didn't configure their timings and let the BIOS do it, but I think it it screwed things up a bit, because I'm getting BSOD errors which look RAM related. Besides, TestMem utility shows errors. I want to configure the timings manually in such a manner that I'd be sure that those RAMs are stable, I don't care about performance at this point. In other words, I'd like you to suggest me some safe, low-performance timings. Please tell me what I should change in the following BIOS parameters layout: http://img214.imageshack.us/img214/1046/tweakerkx3.jpg Oh and one more question: can I UNDERclock my RAM (from 667 to, say, 500MHz) without changing their voltage?