Q: I'm using a AMD Athlon XP 2000+ processor with FSB 266MHz on K7S8X, but the FSB jumper can only set from 100, 133, 166MHz. How do I adjust to FSB 266MHz?(2003/4/15) A: Please understand that AMD Athlon XP 2000+ processor with FSB 266MHz is actually running with 133*2=266MHz. Please adjust the FSB jumper to 100MHz for FSB 200MHz processors, 133MHz for FSB 266MHz processors and 166MHz for 333MHz processors.