FSB question




My mobo has a 266 MHz FSB and I have a 1 GHz T-Bird. In CPU-z it says that my FSB is 132.5 MHz and my bus speed is 265.1 MHz.

So my is whats the FSB speed? Is it 133 or 266?


Shamus MacNoob

OSNN Veteran Addict
Political User
see like me I am overclocked

its spose to be (133x11.5)X2=1529.5 ghz = athlon 1800+
but its set to (140x12.5)x2=1750.0 ghz = athlon 2100+

everything follows the fsb my ram is also on the 140x2 = 280 mhz

so if you use a cpu with a 266 fsb your gonna be better for overclocking with ram that is 333 ( ddr2700 ) cause that ram will allow higher MHZ more than the ddr 2100 = 266 mhz

hope that cleared that up a little :)


Ok thanks, I got a little bit worried when I saw that CPU-z said that my FSB speed was 133 cause I have a Compaq and I cant really change anything in my BIOS.


F@H - Is it in you?
Staff member
Political User
your true front side bus clock for the cpu is 133mhz... the double data rate marketing speed becomes 266mhz... x2 :)

like kermit said..

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