Its been awhile since Ive had to work on my machine so I installed my new cpu and went into Cmos to set my new cpus FSB and I can only go to 166. It shows my cpu as a Sempron 2800 on boot up now and Xp says its running at 2 ghz like its supposed to but Im unsure Ive got this set right or my MB doesnt run my cpu at full speed. Shouldnt my mobo have a 333 FSB option or is the 166 FSB ok and it just doubles to a 333. Any help is surely appreciated.