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  Topic Review (Newest First)
05-12-2020 06:04 PM
wfms
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.
02-04-2020 03:23 PM
Seabee23 I just heard about ths flashing video cards to better firmware. What if any improvments did you get out of this?
10-02-2018 06:06 PM
ThrashZone Hi,
vbios doesn't match original vbios safety features
protectoff before ........rom file string if you're really sure you want that vbios
10-02-2018 05:59 PM
CelticGamer
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
10-01-2018 02:53 PM
ThrashZone 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
10-01-2018 11:42 AM
CelticGamer 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?
09-12-2018 10:06 PM
Lazarus68
Evga Gtx1080 Sc

Saved my Ass, you Da MAN
09-07-2018 03:16 PM
ThrashZone Hi,
With a mod would edit and add a note that this is for 32 bit system or something lol
nvflash64 not nvflash
08-06-2018 10:14 AM
Falkentyne
Quote: Originally Posted by Gebirgskuchen View Post
No idea or any suggestions?
Yes. Please don't spam the forums crossposting the same question in multiple threads. And if no one answers, no one knows. This forum doesn't specialize in laptops, which are far more locked down than even desktop Pascal cards.
08-06-2018 10:06 AM
Gebirgskuchen No idea or any suggestions?
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