why is fsb on TBird MoBo's 100 Mhz?

[tbirdwondering]

Maybe I'm stupid but I thought they were 200 MHZ?

[Eriksson]

It is a double data rate 100 mhz bus, referred to as '200'mhz. Same thing is happening in the new P4 '400'mhz bus, that one is quad pumped 100mhz bus.