Hi eepaziii, i had the same problem some months ago. As i figured out , i think error 43 has to do with driver problems in gpus. What helped me to fix the issue, was to uninstall with DDU every driver i had (also delete AMD and NVIDIA files) in safe mode, had installed Ccleaner and run some tests on registry and then install the 16.11.5 hotfix driver. I couldn't use newer driver, but had no problem with that one, basically every problem i had, was fixed with this one. I think it's worth it to try it, i hope i helped . If it works well and you want, try to update to newer version, it may work after you are done with hotfix (although it didn't in my case).
Link for driver:
Actually its down to third party sellers putting their own bios in the cards to OVERCLOCK mainly ATI.
First you must find where you card came from, get GPU-Z and copy/paste (device id) settings: 4 x 4 numbers into your browser and search.
Then compare it with a bare bones setting of the card with the one above that will tell you it has been overclocked or not?
Because the bios of the overclocked card is third party it will only work with certain drivers so.
The fix is to flash the bios back to the factory original.
I have found over 800 people with the same problem.
Find bios here
VGA Bios Collection _ TechPowerUp
Flash software here
Download AMD_ATI ATIFlash _ TechPowerUp
Flash at your own risk.
if it fails ie bricks, use another card as primary and put bricked card in secondary and flash.