Easy NVFlash Guide with Pictures for GTX 970/980 - Page 10 - Overclock.net - An Overclocking Community

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Easy NVFlash Guide with Pictures for GTX 970/980

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post #91 of 97 (permalink) Old 09-12-2018, 10:06 PM
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post #92 of 97 (permalink) Old 10-01-2018, 11:42 AM
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Hi guys. I'm using this guide for my Alienware Alpha to update to this Vbios here https://www.overclock.net/forum/50-s...-club-150.html

I'm following all the steps in this guide, but when I get to step 9 I keep getting this message
"nvflash is not recognized as an internal or external command,operable program or batch file"

Any ideas what I'm doing wrong here?

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post #93 of 97 (permalink) Old 10-01-2018, 02:53 PM
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Hi,
You didn't link to any instructions I could tell

If you made a folder on C:/ that is named nvflash and put all the the goodies in it
First entry is cd C:\nvflash

Whether this requires you to unlock/ protectoff or not I don't know same vbios no need for this probably
nvflash64 --protectoff
https://www.overclock.net/forum/69-n...r-1080-ti.html
If not nvflash64 -6 ROM_NAME.rom

CPU
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post #94 of 97 (permalink) Old 10-02-2018, 05:59 PM
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Quote: Originally Posted by ThrashZone View Post
Hi,
You didn't link to any instructions I could tell

If you made a folder on C:/ that is named nvflash and put all the the goodies in it
First entry is cd C:\nvflash

Whether this requires you to unlock/ protectoff or not I don't know same vbios no need for this probably
nvflash64 --protectoff
https://www.overclock.net/forum/69-n...r-1080-ti.html
If not nvflash64 -6 ROM_NAME.rom
The details of the Vbios flash is in the first post in that link. Sorry, I can't give much more information than that.

Ok, so I made a little progress. Turns out I needed that "64" in "nvflash64 -6 ROM_NAME.rom".

But now I'm getting this error

'bcrt error code body signature mismatch

Error Code 8:VBIOS Signature Check Failed

Error code 7: VBIOS image Failed certification sanity check'

I'm currently using this "NVFlash_Certs_Bypassed_v5.265_x64

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post #95 of 97 (permalink) Old 10-02-2018, 06:06 PM
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Hi,
vbios doesn't match original vbios safety features
protectoff before ........rom file string if you're really sure you want that vbios

CPU
i9-9940x With Optimus Foundation copper-plexi and Heatkiller VRM copper-plexi water block
Motherboard
ASUS x299 Rampage VI Apex
GPU
Titan Xp with copper-plexi Water Block
RAM
Trident Z 3600C16 4x8gb's b-die default timings 16-16-16-36
Hard Drive
Samsung 970 Evo Plus 500gb M.2/ Samsung 850 Pro 256gb for os and 500gb evo for favorite games plus other wd hdd's for data and backup's
Optical Drive
LG Blu-Ray WH16NS40
Power Supply
evga 1200-P2
Cooling
D5 pump reservoir combo/ GTX280/ VRM block/ GTX280/ D5 top/ CPU block/ GPU block/ Mora 360/ repeat.
Cooling
MO-RA3 360 PRO stainless steel (25022)
Case
corsair 450D with added 2nd floor to house radiator on top
Operating System
Win-7 pro & 10 pro Win-7 Primary os.
Monitor
ASUS VG248QE 24" 144Hz
Keyboard
Logitech G910 Orion spectrum
Mouse
Redragon Perdition
Audio
Built in realtek and Insignia 2.0 soundbar HSB318
Other
5.0/https://valid.x86.fr/ez2ifr
CPU
i7-5930k with Heatkiller IV Pro Plexi-Copper and koolance vrm water blocks
Motherboard
X99 Sabertooth
GPU
EVGA 1080ti FTW3 with Water block
RAM
Trident-Z 3200C14 4x8gb's b-die default timings 14-14-14-34
Hard Drive
Samsung 970 Evo 500gb M.2/ Samsung 850 Pro 256gb for os and 500gb evo for favorite games plus other wd hdd's for data and backup's
Optical Drive
LG Blu-Ray WH16NS40
Power Supply
EVGA 1000-P2
Cooling
D5 reservior combo/ 240GTX/ Koolance VRM block/ 240GTX/ D5 Top/ CPU block/ Gpu block/ Mora 360LT/ back to reservoir
Cooling
Mora 360LT black 25000
Case
Corsair 450D with added 2nd floor to house radiator on top
Operating System
Win-7 and 10 pro Win-7 Primary os.
Monitor
AOC G2460PG 24"G-Sync 144Hz
Keyboard
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Mouse
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CPU
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post #96 of 97 (permalink) Old 02-04-2020, 03:23 PM
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I just heard about ths flashing video cards to better firmware. What if any improvments did you get out of this?
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post #97 of 97 (permalink) Old 05-12-2020, 06:04 PM
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Quote: Originally Posted by Hawtkward View Post
Hello guys. Got a really wierd problem, havn't seen someone feedback'd it yet.

Tried all bios versions for my evga gtx970 sc acx2.0 from this thread http://forums.evga.com/Solution-For-...-m2332911.aspx , the card version (or whatever number -2974 means) is correct. Made everything exactly following instructions, even tried different versions of nvflash software. Primary VGA is PCIE in bios setup.

BUT:
After last step, when i have to activate gpu and restart system, after reboot i have black screen, no beeps from m/b, 15-20 second later my devices (keyboard, mouse) get power (led activates on all devices), and 5-10 seconds after i see the "signal not found" alert on the display.

So after that i rolled back to original bios, and i'm literally forced to use it atm.

Any suggestions? Maybe anyone had this problem?
I know this is a really old post but I just ran into this same exact issue as well! On the same card and BIOS.
It's weird because I flashed my card with one of those years back when that post was still fairly new, since I was having issues with those black screens too.

Now wanted to flash to a different version and got this same issue, had to spend several hours gutting an old office PC for a spare GPU to get output and revert the flash.
This time only the original BIOS actually works, can't get any of those to flash correctly. (They say succesful, reboot, no output) Even though I've been running the 1506 1.2v version for the past 4-5 years...
I suspect it's either something new with Windows or Nvidia drivers, but makes me wonder why my 1506 bios worked fine all this time and now I can't even go back to it.
Would be really nice to find a solution for this.

Last edited by wfms; 05-12-2020 at 06:07 PM.
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