pc1600 pc2100 and pc2400 all refer to the speed of the fsb. pc1600 can run 2000(100*2), pc2100 can run at 266(133*2), and pc2400 can run at 300(150*2). it is termed ddr for double data rate and what it does is clock data on both edges of the dram clock. for a good website check out either micron's site www.micron.com or crucial.com which should provide you with all the info you'll need. make sure you cpu can handle the accelerated speeds. athlon c's have this option
stand up join us modern crusaders alive<P ID="edit"><FONT SIZE=-1><EM>Edited by jmycal on 09/26/01 01:44 PM.</EM></FONT></P>
pc1600 is not the best performing ddr memory. not many people that i know of have used it. for a 266 id really recommend the pc2100 which is really dropped in price 256 mg $35.99 on crucial. to answer your question, the pc1600 would work, but not well.