make-a-bios ... is there such a thing?

[spdsound]

is it possible to create your own bios... or modify the companies bios?... because what im trying to do us change by bios... so i can have a FSB of 133... the optimal bus rating for my cpu... its currently @ 100 @ 1.1 GHz... of anyone knows what im talkin about ... or has done this before... can ya help me out?

thanks

[zx7r]

I'm after a mod for my BIOS to allow me to change the divider from the standard 5: to the unofficially supported 6: on my abit kd7-g. Prob. won't work, but I'd like to try anyway - just wanna get a stable 200 fsb cpu/mem !
Anyone else able to reach 200 safely (with no hd errors) ?

ta.

[klenot]

To Spdsound:

If I understand you right, you want to set your mobo's FSB to value not found in the BIOS.

For fisrt: The clock generator chip must be able to provide the desired clocking signal. If it is, then it would be already available in the BIOS. If the chip can't generate such FSB, there's no way to reach this by changes in the BIOS.

For second: Of course, that you can make changes in the BIOS. But only in the case you are a well experienced assembler programmer, well experienced reverse engineer and if you have in-depth knowledge of how particular chips on the mobo have to be controlled. Simply said, only gurus should try something like modyfying the BIOS. It's not a task for user (even very experienced).

Maybe, your mobo is an FSB-autodetect model. And in this case, reaching the FSB 133 instead of the default 100 is as simple as manipulating two pins of the CPU. The pins are BSEL0 (AJ33) and BSEL1 (AJ31). And switching from 100 to 133 is even simpler: the only you thing you have to do is pulling the pin BSEL1 to logical 1. Pulling it to logical 1 can be done by simply cutting the wire going from the appropriate pin of the socket370. But do it only if you feel yourself able to properly identify the correct wire. And of course, if you determine to do it, you do it completely at your own risk :cool: