Randall H. Craig wrote: > > I know I sound like an idiot but what does the acronym SPD stand for? serial presence detect (SPD) You can read about it here: http://www.intel.com/technology/memory/pc133sdram/spec/spdsd12b.htm http://www.simmtester.com/page/news/showpubnews.asp?num=101 Bari