[Official] NVIDIA GTX 660TI Owners club - Page 129 - Overclock.net - An Overclocking Community

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post #1281 of 3665 (permalink) Old 02-17-2013, 05:52 PM
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All thanks go to CrazyNuts from http://www.xtremesystems.org/ who programmed this wonderful thing!

Here is what i did to get 1320mhz stable overclock in Heaven 4.0. Before it would crash very much compared to 3.0 even at 1267mhz, so i figured that i needed to unlock my voltage to get it stable.


1. Download kepler bios editor with unlocked preset here: https://www.dropbox.com/s/d6dimgnx8cxvlca/kgb_0.6.1.zip

2. Extract bios .rom from GPU-z and put rom file in same folder as the extracted zip above.
(WARNING: Before extracting your bios, please have fresh install of your nvidia driver or make sure ALL Settings\profiles in nv control panel are at default + ALL OC SETTINGS AT STOCK.)

REMEMBER TO KEEP BACKUP OF ORIGINAL .ROM FILE

3. In the folder with editor and .rom file, make a txt document where you write without quotes "kgb.exe GK104.rom unlock" and save the txt document as a .BAT file.

4. Run the bat, bios file gets modified. (eventually edit the kgb.cfg first for manual settings, experienced users only, not recommended)

5. Then download NVflash for windows, put the modified GK104.rom in same folder as nvflash.

6. Then open a new txt document where you write without quotes "nvflash.exe GK104.rom" and save as .BAT file. (in same folder as nvflash.exe and the modified .rom file)

7. Run the BAT and follow instructions in nvflash command line (basicly you just press "Y")
If the bios is write protected, try "Nvflash --protectoff" first.

8. Restart Computer.

Voila! You will have unlocked power limit to 150% now and unlocked voltage control. Remember your card will boost much, much higher than before now so keep those afterburner settings at stock and start from there. Also watch your temperatures closely and make sure all cooling is optimal.

(I take no responsibility for anything you may encounter. I followed the steps above and it worked for me. Should you encounter major problems, then boot up with Integrated graphics and flash back to default bios.)

Good Luck & Have fun Overclocking! thumb.gif

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post #1282 of 3665 (permalink) Old 02-17-2013, 07:28 PM
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I want to do that so bad, but I'd be lying if I said I wasn't a little scared. hahaha


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post #1283 of 3665 (permalink) Old 02-17-2013, 10:22 PM
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Hey guys, try out the Unigine "Valley" bench! No tesselation in this one and it's getting pretty competitive!

But, for the sake of the OP of the thread, please read the directions on how to post your results first thumb.gif

https://www.overclock.net/t/1360884/top-30-unigine-valley-benchmark-1-0/0_20


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post #1284 of 3665 (permalink) Old 02-18-2013, 05:39 AM
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I want to do that so bad, but I'd be lying if I said I wasn't a little scared. hahaha

Yeah i thought alot before doing it. But then you only live once tongue.gif

However, still running very stable! Had heaven 4.0 going on extreme preset for several hours last night smile.gif 3,5 more avg fps on extreme preset than 1267mhz and standard volt on old bios gave me, so im happy enough with that considering how otherworldly demanding Heaven 4 is.

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post #1285 of 3665 (permalink) Old 02-18-2013, 06:13 AM
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Running at 1333mhz now thumb.gif .. dang im stupid tongue.gif Wonder if im gonna let it run on 1337mhz just for the fun of it biggrin.gif

Also this bios made my fan go 5% faster too! Before max was 95%, now the fan is running on 100% and giving off 150 more rpm. More cooling for the VRM and Core!

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post #1286 of 3665 (permalink) Old 02-18-2013, 07:04 AM
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mine is saying

''EEPROM erase failed.

ERROR: Software write protection enabled, unable to erase EEPROM"

been trying to find info about this error for about the last hour with no luck.

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post #1287 of 3665 (permalink) Old 02-18-2013, 07:40 AM
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Originally Posted by couchasault9001 View Post

mine is saying

''EEPROM erase failed.

ERROR: Software write protection enabled, unable to erase EEPROM"

been trying to find info about this error for about the last hour with no luck.

Is your card factory overclocked or reference?

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post #1288 of 3665 (permalink) Old 02-18-2013, 07:44 AM
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use nvflash -4 -5 -6 yourbios.rom

The -4 forces the flash, at least that's what I've had to do in the past.




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post #1289 of 3665 (permalink) Old 02-18-2013, 07:45 AM
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Quote:
Originally Posted by kjekay View Post

Quote:
Originally Posted by couchasault9001 View Post

mine is saying

''EEPROM erase failed.

ERROR: Software write protection enabled, unable to erase EEPROM"

been trying to find info about this error for about the last hour with no luck.

Is your card factory overclocked or reference?

overclocked. its a asus dc2 oc
Quote:
Originally Posted by GeforceGTS View Post

use nvflash -4 -5 -6 yourbios.rom

The -4 forces the flash, at least that's what I've had to do in the past.

i'll give this a shot right now.

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post #1290 of 3665 (permalink) Old 02-18-2013, 07:50 AM
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no dice. flashed it like this ''nvflash.exe -4 -5 -6 GK104.rom"

same error.

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