mobo wont utilize higher mhz speed from jumper

JCROCCO

Senior member
Mar 14, 2003
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I have the same mobo on 4 computers. I update the CPU's on allof them from 1.8/400 fsb to 2.8/533 fsb. In oder to change the fsb, I had to change a jumper on the mobo from 100 mhz to 133.

This worked fine on 3, but on the 4th one, when I change it, it doesnt boot up at all.

It nots the CPU, I changed it with other that worked, and put it in the other computers and it worked.

What couls cause this?

The bios says it is still at 100 mhz, and my 2.8 is only running at 2.1/400 instead of 2.8/533.

Has anyone seen this before?

It is a P4