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post #26 of (permalink) Old 07-09-2015, 06:35 AM
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Originally Posted by WerePug View Post

I will quote myself in this thread, since the information is relevant to the OP:
Warning: Long Post (Click to show)
Originally Posted by WerePug View Post

I have analyzed the file structure of the roms a bit.

I found out, that all voltages are defined in 34-byte long blocks. First 4 bytes are an integer value, defining min-voltage. This value is in milivolts times 1000. Which would make them microvolts, I suppose. Next 4 bytes are the max voltage for that definition.
~ CUT ~
The root of all evil rests with the base values for those sliders. In stock GM200 bios, those are 1150,675 - 1198,47 for the external regulation and 1190,349 - 1239,838 for the temp throttle. It would appear, that along with other "unkown" voltage table entries, the MBT discards values, that is doesn't consider "neat" (multiples of 100, I would assume). Therefore, changing the values to multiples 100 (what gm204 bioses have) caused them to appear in the GUI. I am assuming, this would work for the other unknown values as well, though no reason to poke that bear.

Thank you a lot for your work and sharing. In the end, is it the 2nd slider on your custom bios to avoid vdrop?
I've MSI 980TI Gaming 6G too.
My card over 70°c drop from 1,230v to 1,205v

MSI GTX 980TI Gaming 6G, Intel I7 3770K, AsRock Z77 Extreme 6, Corsair Vengeance LP 1600MHz 16GB, Coolermaster HAF XM.
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