Please help a girl!

Hi Everyone,

I am new and trying to install my motherboard myself. I bought the ePox 4g4a+ motherboard w/ Intel P4 1.8 CPU. When I boot up, I get an error code "26" on the post LCD. It says in the manual that its an "overclock failure". I set the CPU bus speed jumper to 100mz, then back to CPU auto-detect and its the same error. no matter what I do, it does not go away.

Can someone tell me what I should do?

Thank you

Arlene