Ya, The Celeron800 typical FSB = 100MHZ
and we can adjust to the 133MHZ without adding voltage
so 133*8 = 1064 MHZ
we can still try higher FSB= 139, 143 ,...
I guess the max speed of CC0 Step .18um Celeron or P!!! at the air cooling system is about 1.2G
it seems easy to find the "133" MHZ FSB...