HELP! Can't upgrade BIOS

Hi. Got an old ABIT BH6 ver1.1 board and in order to be able to run a PIII 866 on it i have to upgrade my BIOS but it refuses(!) Found a new BIOS upgrade but after flashing with the new .bin-file it still displays the same date/year version at POST during startup. Do you have to use a certain flash utiliy tool version for it or what am i doing wrong?
As far as i know, if you flash with the wrong .bin-file you gonna kill the card..right? As is, got a celeron 433 running at 66mhz FSB.
Would really appreciate some help.
thanks.

Many BIOS versions have a setting that must be changed that allows the BIOS to be temporarily flashable, or the update will fail.

Toejam31

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