New (wrong?) BIOS question

[LawyerLynn]

I have a SOYO KT333 Dragon Ultra Platinum mobo based on the VIA KT333 Chipset. It really bugs me that the 1/5 divider is not available so I can use the 166 fsb setting safely. I was wondering though, could I flash the BIOS with the KT400 BIOS safely and thereby gain the 1/5 divider that is available on the Via KT400 based Dragon Ultra Platinum 400 mobo?

 

[repo man11]

I have experimented with BIOS for different boards/same chipset before. It is very hit or miss, and I wouldn't try it unless I had a spare BIOS chip to swap in, or knew I could hotswap flash back to the correct one.
I would only try it with a BIOS for the same chipset.
I think it would be a lot of work and risk, and will most likely have disappointing results.