GPU driver error after Polaris editor

[anabil]

I have 3 RX 470's 4GB i edited there bios with polaris and worked flawlesly until i reisntalled them in new rig with new windows i keep getting error 43 in device manager with yellow triangle, in order to make them work again i flash them back to stock bios.
I tried them individualy on another PC but same resutls.. error with flashed bios rom.. i defently had them working before

[chronek]

i would suspect 16.12.x driver, cause amd forced bios checking there, try using like 16.11.x driver it should work with modified bios

[anabil]

Tried 16.9.2 and 15.12 before with no luck, i will give it a try

[toptek]

yea like chronek said if you use the new AMD drivers they have drivers signing turned on now and it looks likes that gonna sty so those drivers with only work if you replace and patch the atikmdag.sys file with the atikmdag-patcher-1.4.3 or go back to the original bios which can be found here https://anorak.tech/ or don't use the new drivers at all if you want to use your molded bios and don't want to patch it unless they turn off drivers signing and sadly at some point in time you may have to use the newer drivers with stock bios or patch it, if they don't block that .

and depending on the AMD card the 15.12 drivers don't have RX 400 series support I tired to install them with my RX 400 series cards they didn't work and the release notes don't list the RX 400 series as supported cards,   but you may be able to add support, if you look around, i read some place, some were able to . me i would rather use whats new from past usages using old drivers with new gear it just didn't cut it for me, unless the new drivers had major bugs


Here is the how to if you don't mind Patching the new drivers with file links that explains it all . the new drivers work fine for some and for others there a nite mare .

https://www.techpowerup.com/228536/amd-bios-signature-check-re-enabled-with-relive-locks-out-polaris-bios-modders  

[bradli]

try 16.9.1
no need signature for driver.
If you want this new one you have to flash original bios .
When they check in device manager you can reflash with other bios.