KGB - Kepler BIOS Editor/Unlocker

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04-06-2013, 11:49 AM
war4peace

Hello,

I have re-flashed my card BIOS and I started getting "Display driver nvlddmkm stopped responding and has successfully recovered." errors in every game.
My card is a Gigabyte GTX660Ti (link) and I have downoaded its BIOS wit GPU-Z, used KGB to unlock it and set minimum fan speed to 10% (it's all I care about) and used nvflash to upload the new BIOS. The minimum fan speed is indeed at 10% now, but I can no longer play any game properly.
- GTA4 blanks out and recovers but the FPS is reduced to 15-17, I have to exit the game and go back in.
- Warframe pops out of the game and sends me to a generic webpage about Hardware failure detected.
- World of Tanks shows a white screen, I have to close it and re-run the .exe when that happens, it does not recover by itself.

My Display Driver version is 314.22.

Any ideas? What should I do to make this go away?
04-06-2013, 03:20 PM
kevindd992002

Did you try reflashing back to the original BIOS and see if it fixes the prob?
04-06-2013, 09:55 PM
war4peace

Apparently it does. I have played Warframe more than 1h without a glitch after reflashing to original BIOS. Previously, I couldn't play for more than 15 minutes.
04-06-2013, 11:45 PM
kevindd992002

Quote:

Originally Posted by war4peace

Apparently it does. I have played Warframe more than 1h without a glitch after reflashing to original BIOS. Previously, I couldn't play for more than 15 minutes.

Well, did you increase the voltage also? Unlocking (increasing) the voltage will also increase your boost clock.
04-07-2013, 12:50 AM
NEOAethyr

I assume this doesn't support an nvidia vgx grid k2, not a biggy though.

I uploaded my bios'es, they are stock, not modded.
From the batches before the power limits, the 680 lightning.

http://hidemyass.com/files/KQbfg/

Pain in the butt to find a working file upload site these days :\.

Anyways I hard modded my card into a grid k2, well half of one, I need a 2nd 680 lightning to complete it.
Decisions decisions...
:)
04-07-2013, 02:27 AM
jumper2high

@CrazyNuts: Could you take a look at the output from this post and see what's the reason for it failing? Is the DCII ROM not supported yet?
04-07-2013, 11:00 AM
war4peace

Quote:

Originally Posted by kevindd992002

Well, did you increase the voltage also? Unlocking (increasing) the voltage will also increase your boost clock.

Hmm, to be honest I haven't touched that area. What happens if I comment all entries in the Voltage area in the CFG file? All I need is reduced minimum fan speed %.
04-07-2013, 11:04 AM
kevindd992002

Quote:

Originally Posted by war4peace

Hmm, to be honest I haven't touched that area. What happens if I comment all entries in the Voltage area in the CFG file? All I need is reduced minimum fan speed %.

Hmmm, that's weird then. Commenting all voltages in the CFG file means you won't touch the voltage at all when you flash the modified BIOS over.
04-08-2013, 10:25 PM
kevindd992002

Quote:

Originally Posted by kevindd992002

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, please reply. Are you still busy?
04-09-2013, 07:27 AM
MikjoA

Hey, can somesone give me his eVGA GTX 660 Ti SuperClocked 2Gb bios please ?
I have an eVGA GTX 660 Ti standart and such an upgrade would be nice, if it is stable I could consider unlock it then.

And unfortunately I can't download CrazyNutz GTX 660 Ti SC bios :( links are broken... and there' no GTX 660 Ti SC 2gb bios in techpowerup database.
04-17-2013, 12:51 AM
melodystyle2003

Hello.

I receive my evga gtx660 sc and tried to unlock via this great kgb tool.
I get a message for bad checksum, different value its time.

Code:

C:\kgb 660stock.rom Kepler Golden BIOS Tool (Beta v0.6.2) by CrazyNutz @ XtremeSystems WARNING: Use at your own risk! BIOS start found 0600 BIOS end found 1820b Checksum: Bad (In ROM: 00 Calculated: 90) Oh no, Bad checksum. C:\kgb 660stock.rom Kepler Golden BIOS Tool (Beta v0.6.2) by CrazyNutz @ XtremeSystems WARNING: Use at your own risk! BIOS start found 0600 BIOS end found 1820b Checksum: Bad (In ROM: 00 Calculated: 4d) Oh no, Bad checksum. C:\kgb 660stock.rom Kepler Golden BIOS Tool (Beta v0.6.2) by CrazyNutz @ XtremeSystems WARNING: Use at your own risk! BIOS start found 0600 BIOS end found 1820b Checksum: Bad (In ROM: 00 Calculated: 07) Oh no, Bad checksum.

My bios is this. Is it possible to support this bios too?

Thank you.

Edit:
I run cmd as admin, set kgb.exe in compatibility mode for xp sp3 with admin rights and manage to unlock it!

Code:

C:\kgb 660stock.rom Kepler Golden BIOS Tool (Beta v0.6.2) by CrazyNutz @ XtremeSystems WARNING: Use at your own risk! BIOS start found 0600 BIOS end found f5ff Checksum: Good! cf Model: GTX 660 Device ID: 11C0 Found power offsets 832f Found fan offsets 83a9 Found voltage offsets 7649 Found max boost offsets 6f75 Fan Speed Range: Min = 30 Max = 100 Power: Power Target: 125000 Max Power Target: 200000 (160%) Max Boost: 1280.5 Mhz Voltage Table: 1212500 1212500 12125000 1212500 1212500 12125000
04-20-2013, 05:27 AM
NamelessTed

Hey CrazyNutz,

First off, good work so far on this utility. I manager to unlock the BIOS quickly and got it flashed. My card is already boosting past what was stable previously.

The issue I am running into might not be fixable from a BIOS standpoint, it might just be built in to Kepler through some other means. When I first launch a game or benchmark I can see the card boosting to 1202MHz with a vcore of the 1.212. But, once the card hits 70C it starts to throttle it down. If I let Heaven benchmark loop for a while it balances out with the core clock at 1123.5MHz, temp at 75C, 54% fan speed, and 1.2000 V.

Is 75C considered that hot for a kepler GPU? Do you think there is some way to make the card not throttle at these temperatures? I remember reading something about how the Boost on the Titan's worked differently to allow higher temps. I am pretty tired right now so I don't have as much time to play with it as I had hoped. I am planning on testing with the fan speeds, I believe you can make custom fan curves in Afterburner so I will play around with how loud that gets and seeing if it helps the temps at all.
04-23-2013, 11:13 AM
harinoorvirk28

need help

hi so i just modded my bios and i started seeing way lower scores than i had before why is this? and how can i go back to my old bios i did create a back
up for that plz help asap
05-08-2013, 12:11 PM
CrimInalA

Quote:

Originally Posted by CrazyNutz

Hey guys, I'll look into adding 650ti support. It's probably the same as gtx660 since its a gk106 gpu.

I see no mention of the 650ti in the startpost of this thread . Does that mean its not supported yet ?
Any idea if it ever will or if its even possible ?
05-09-2013, 04:13 AM
CrimInalA

you can download my original PNY GTX 650 Ti bios here : http://www.skybed.be/temp/xtremesyst...inal.GK106.rar
05-11-2013, 09:49 AM
Hypertek

I would also like to see 650 TI support here, I have a 650 ti 2gb (non-boost) , got it water cooled (it was a cheap replacement for my 8800gt) . Thanks!

When I run kgb, it finds the card, but at the bottom says "hmm, could not find power offsets"
05-14-2013, 01:18 PM
gpvecchi

I have latest 680 Lightning unlocked bios, I tried this tool, but it lowers voltage table and power limit. I suggest to leave it untouched if values are higher.
I'd even like to use a newer bios, but they are all locked; it would be nice if I could choose limits to use...
05-14-2013, 06:55 PM
Boulard83

Quote:

Originally Posted by gpvecchi

I have latest 680 Lightning unlocked bios, I tried this tool, but it lowers voltage table and power limit. I suggest to leave it untouched if values are higher.
I'd even like to use a newer bios, but they are all locked; it would be nice if I could choose limits to use...

If you GPU bios is already unlocked, why you want to unlocked something already unlocked ?
05-19-2013, 01:26 AM
webtourist

I have two cards in SLI. It is very difficult to separate them .
Do I have to unlock them one by one?
05-21-2013, 10:22 AM
sepol

Quote:

Originally Posted by webtourist

I have two cards in SLI. It is very difficult to separate them .
Do I have to unlock them one by one?

No, nvflash flash them bought. It search by all the cards in the system.
05-22-2013, 10:59 AM
webtourist

Quote:

Originally Posted by sepol

No, nvflash flash them bought. It search by all the cards in the system.

Thanks Sepol.
I did that. Everything is OK.
Thanks CrazyNutz . Nice job!
05-25-2013, 05:31 PM
avabaska

Help me pls to remove all unnecessary (for me!) states (frequencies and voltages) from Titan's BIOS. I want only two of them - 2D and 3D. First will be about 500 MHz and 1V or about and the other one 1150 MHz at 1,212V. Not sure about memory.

Is that possible? Now I have this BIOS:

http://imageshack.us/a/img20/4016/mybios.th.png

So it's like I don't have any boost and I like it, but I don't need the other states between min and max, it gotta be only one (I can handle a little higher consumption and heat at idle).

I just have a problems at switching between idle and load, so hope to solve it that way :(
05-27-2013, 09:10 PM
avabaska

NVM, got it with NVinspector - P8 and P0 states :)
05-31-2013, 02:00 AM
webtourist

Is it possible to get more than 1.21 v?
I have water cooled PC and after bench the temperatures are max 40C-50 C .
I need more voltage. Nvidia Asus 680 DirectCU (non TOP version)
05-31-2013, 08:42 AM
lowfat

Quote:

Originally Posted by webtourist

Is it possible to get more than 1.21 v?
I have water cooled PC and after bench the temperatures are max 40C-50 C .
I need more voltage. Nvidia Asus 680 DirectCU (non TOP version)

Nope. That is the limit of pretty much every Kepler besides the Lightning AFAIK.

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