Sapphire RX 570 8GB Nitro+ Code 43 Error

[Sprolez]

I've been attempting to fix an RX 570 that I bought used a couple of years ago. Unfortunately, it has been giving me a code 43 error in device manager, and I haven't permanently fixed it. Using DDU and installing a fresh version of Windows did nothing. After that, I suspected it had something to do with the GPU itself. I found this program called atikmdag-patcher, and it has been able to fix the code 43 error temporarily. I tried flashing this BIOS (VGA Bios Collection) for Hynix memory (verified the brand of memory when I took the GPU apart), but the code 43 error still appears. I don't really know what else to do other than continue to use this program.

The part number for the GPU is 299-2E366-001SA.

 

[Imperator]

Hello
Ok, let's take 1 step at a time.
You flashed it recently with a correct BIOS?
And after that you applied atikmdag ?

 

[Sprolez]

Hello
Ok, let's take 1 step at a time.
You flashed it recently with a correct BIOS?
And after that you applied atikmdag ?

I used atikmdag first and found that it worked until I uninstalled or updated the drivers. I flashed the BIOS after to see if that would permanently fix it. To be safe, I did use DDU in safe mode to remove the graphics drivers before flashing the BIOS.

 

[Imperator]

OK. So now you have a correct BIOS in your card ? I presume yes, so you can do the procedure one more time.
1st - boot in safe mode
2nd - use DDU to clean system from old drivers
3rd- reboot normally
4th - reinstall drivers
5th - use atikmdag
6th- restart computer and check again status of card in device manager

 

[Sprolez]

OK. So now you have a correct BIOS in your card ? I presume yes, so you can do the procedure one more time.
1st - boot in safe mode
2nd - use DDU to clean system from old drivers
3rd- reboot normally
4th - reinstall drivers
5th - use atikmdag
6th- restart computer and check again status of card in device manager

The error went away, but if I reinstall or update the graphics driver the error comes back.

I also noticed how this BIOS I used (and the previous BIOS when I got the card) had the part number ending in S4U. Does it matter that the part number on the sticker ends in SA?

 

[Imperator]

Well, the good news is that you have a fully functional card.
Yes when you change driver error 43 could appear but is not 100%.
The ideea is : system is working perfect? Then do not alter anything.
About the BIOS code - no it doesn't matter what code you have.
Have a nice day!

 

[Sprolez]

Well, the good news is that you have a fully functional card.
Yes when you change driver error 43 could appear but is not 100%.
The ideea is : system is working perfect? Then do not alter anything.
About the BIOS code - no it doesn't matter what code you have.
Have a nice day!

Thank you for the help!