KGB - Kepler BIOS Editor/Unlocker

[xorbe]

Has anyone actually tried this with their Titan? I used KGB+KeplerBiosEditor on my 680 just fine previous (thanks!). I just don't want to be the guinea pig with a Titan!!! Rumor is changing max power % has no effect on Titan so far, but I want to try it myself ...

[dr.noob]

Please make the fan range go from 10% to 100%, mine is at 30% and i want less. - 650ti user

[Boulard83]

Just edit de kgb.cfg, you can modifie the fan min/max.

[dr.noob]

My card throttles at 55 degree Celsius, can i change that?

And free bump for this great thread.

Crazynutz is it ready?!

[dr.noob]

another bump.

I have some time, can i help you out?

[httuner]

I tried this on mine and it says my card isn't supported yet_

So I would like to request added support for this GPU, if you can I would donate to your efforts, buy you a few beers =]

GPU Bios is off Asus G75VX Laptop
GTX 670MX

Here's the download link for the GPU BIOS_
http://www.sendspace.com/file/l62apm

Thank you very much_

[Jodiuh]

UPDATED INSTRUCTIONS!!

Thanks for all the help. I did need to download this .zip however.

http://www.dbit.com/pub/cwsdpmi/csdpmi4b.zip

There are 3 files located in the bin folder that end in .exe. I needed all 3 on the USB thumb drive in order to get past the DPMI error.

[dr.noob]

Crazynutz, is your program as good or better than the Kepler Editor Bios v1.24?

[dr.noob]

Ok, we better let the man do his magic.

[emreonal69]

Has GTX Titan got any hardware voltage limiter? Can we give above 1,2v with any bios mod?

[Demo]

Lets see if I got this correctly, the stock voltage on the GTX680 reference design is at 1.15 and it boosts at 1.175 ( 2 steps up from the voltage table ) if I set the base voltage at 1162500 so it should give me a boost of only 1.18, correct?

I plan to use the Windows version of NVflash, is there a specific command on how to flash the second card with out swapping the cards around?

[kevindd992002]

Is KGB already dead? It's been how many months since there was a major update to this?

[Scorpion49]

Does anyone have trouble with their BIOS only running at the default KGB clock of 1202? My cards will not go past 1202 no matter what I put in the KGB config file. I have 660 OEM cards in SLI.

Is KGB already dead? It's been how many months since there was a major update to this?

Was it not updated like 2 weeks ago?

[kevindd992002]

Does anyone have trouble with their BIOS only running at the default KGB clock of 1202? My cards will not go past 1202 no matter what I put in the KGB config file. I have 660 OEM cards in SLI.




Was it not updated like 2 weeks ago?

Yes but 0.6.2 was an update to support more BIOSes only. The update is not major in any way like being able to modify memory clock, offset voltage, etc.

[Demo]

My bottom card is alwasy 13Mhz higher, id like it to be at an equal level on my top card.. would changing the max boost on the cfg file resolve this ?

[kevindd992002]

@CrazyNutz

What do you mean by "driver detection problem" in the note on kgb.cfg here:

# EXPERIMENTAL: This Setting makes the checksum calculate to
# the same value it originally was by manipulating an unused
# section of the bois. This may be needed for the new style
# UEFI vbios. Set this to 1 if you want to preserve the orig
# checksum. Set to 0 for the previous behavior of re-calculating
# the checksum. NOTE: if you're not having driver detection
# problems leave this at 0.

So UEFI vBIOSes, when used with Preserve_Original_Checksum = 0 will sometimes make Windows error out in detecting the drivers or something like that? According to error-id10t, the only problem of the old KGB program is that it can't compute properly the checksum of some UEFI BIOSes and so you should sometimes use Preserve_Original_Checksum = 1 to solve this. But what do you mean by "driver detection problems"?

I hope you reply on your own thread here.

[andressergio]

@crazynuts

a quick question

i succesfully modded my cards now i got other one so i will be on tri sli on air and cards get sticked togheter so when i have max load of 1.244 at 1320...if i run -26 wich will be 1293 will be same load ? or cards take the volts they need ? or its always 1,244 ?

thanks !
Sergio

[mmatus89]

I was a able to finally get it working! So far I have reached 1254 my highest ATM on dual cards. I decided to bench my cards using the Unigine Engine Valley Benchmark.
Can someone explain why my lower clocks got higher scores than my higher clock speeds? I typed the clock speeds next to each score.
I know this is hard to believe, but my friend watched me OC and benchmark them as well, and he is just as confused as I am.
http://i.imgur.com/r50to6C.jpg?1

[CrazyNutz]

@CrazyNutz

What do you mean by "driver detection problem" in the note on kgb.cfg here:

# EXPERIMENTAL: This Setting makes the checksum calculate to
# the same value it originally was by manipulating an unused
# section of the bois. This may be needed for the new style
# UEFI vbios. Set this to 1 if you want to preserve the orig
# checksum. Set to 0 for the previous behavior of re-calculating
# the checksum. NOTE: if you're not having driver detection
# problems leave this at 0.

So UEFI vBIOSes, when used with Preserve_Original_Checksum = 0 will sometimes make Windows error out in detecting the drivers or something like that? According to error-id10t, the only problem of the old KGB program is that it can't compute properly the checksum of some UEFI BIOSes and so you should sometimes use Preserve_Original_Checksum = 1 to solve this. But what do you mean by "driver detection problems"?

I hope you reply on your own thread here.

There is a checksum of some value in each bios. If any changes are made in the bios this checksum must be recalculated.

For examples sake lets say its originally dec "78", if you make a change and recalculate the checksum, it will now be let say "107"

In some bioses (probably just uefi) if the original checksum "78" has been recalculated to something else, the nvidia driver may detect this and fail to load "no supported hardware detected" < some message like this.

This may be an attempt by nvidia to stop bios mods, my best guess anyhow.

So when you Preserve_Original_Checksum = 1, after a mod kgb forces the checksum to recalculate to the original value "78".
It does this by changing values in the padding (unused) sections of the bios so the checksum will = 78.

[kevindd992002]

There is a checksum of some value in each bios. If any changes are made in the bios this checksum must be recalculated.

For examples sake lets say its originally dec "78", if you make a change and recalculate the checksum, it will now be let say "107"

In some bioses (probably just uefi) if the original checksum "78" has been recalculated to something else, the nvidia driver may detect this and fail to load "no supported hardware detected" < some message like this.

This may be an attempt by nvidia to stop bios mods, my best guess anyhow.

So when you Preserve_Original_Checksum = 1, after a mod kgb forces the checksum to recalculate to the original value "78".
It does this by changing values in the padding (unused) sections of the bios so the checksum will = 78.

Got it. But what I don't understand is what would be the disadvantage if you keep Preserve_Original_Checksum to 1 all the time even when modding non-UEFI BIOS? Is there some disadvantage when recalculating the checksum by using the original value?

[CrazyNutz]

@crazynuts

a quick question

i succesfully modded my cards now i got other one so i will be on tri sli on air and cards get sticked togheter so when i have max load of 1.244 at 1320...if i run -26 wich will be 1293 will be same load ? or cards take the volts they need ? or its always 1,244 ?

thanks !
Sergio

it will go to 1.244 if the power, and temps are good. So to answer your question yes it will most likely run a 1.244 even if you lower the clocks

[CrazyNutz]

My bottom card is alwasy 13Mhz higher, id like it to be at an equal level on my top card.. would changing the max boost on the cfg file resolve this ?

yes

[andressergio]

it will go to 1.244 if the power, and temps are good. So to answer your question yes it will most likely run a 1.244 even if you lower the clocks

thanks mate !

[andressergio]

guys please i need your help

im getting the PCI Subsystem mistmatch and card flashes either way but i dont see increase in volts, today i flashed original rom then i started to tweak everything was fine till i got that error now volts dont increase

why GTX680 (2) have totally dif numbers than the GTX680 (0) to the most right numbers





i NEVER ever get that mismatch before now i get it all the time like the PLX right part was copied to the GTX680(0)

[andressergio]

well altough the problem above the cards flash ok

@crazynuts

i have a question for you

my Galaxys GTX680 SOC show this on its stock bios




this is my modded one using KGB




but...1,15 on my cards is 1,2 in the cards measure points...with multimeter...

so i NEVER tried nothing under 1,21 on your config file

so i decided to do it and NO VALUE under 1,21 takes effect only 1,21

this maybe how the card is made ? a limitation or maybe you can inspect my bios ?

Cheers !
Sergio