What is CPU host clock select Jumper for?

[conan48]

I have an Epox 8k5a2+ Motherboard, and there is a jumper setting for CPU host clock select at 100 and 133mhz. It is set at 100mhz default. I have an Athlon 2000XP and I was wondering what this jumper setting was for, and if I should set it at 100mhz or 133mhz

thanks

 

[Crashman]

It's supposed to be set to 133MHz. It's the bus clock. 133MHz is the clock rate that AMD's DDR266 bus actually runs at.

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