if the graphic card (SAPPHIRE HD 6870 1GB GDDR5 Vapor-X) is activated my computer show a blue screen and does not start in normal mode.
If the graphic card is NOT activated, my computer starts with low resolution.
I tried to uninstall the last drivers downloaded on your web site and to re-install them but same troubles.
I do not have serial number neither bios version because I asked a friend of mine to have a look at the computer.
What could be the reason of the troubles ?
Thanks for your quick reply.
I am lost without my computer.
The HD6xxx series has reached peak optimisation and been moved to legacy status, there will not be any further driver updates for your product. More information available here.
The latest Crimson driver for your system is 16.2.1 and is available here.
The last Catalyst driver for your system is 15.11.1 Beta and is available here.
I would recommend using DDU to sweep your system of AMD drivers, and then trying the drivers above to see if they resolve your issue.