So I've read through this:
and I feel like asking here because I dont quite know any further.
We're on a Win7 64 Ultimate SP1 OS. We did a clean install after the computer randomly crashed in various games only showing a black screen.
Now, after reinstalling Win7 I noticed that as soon as I install the AMD driver I get the black screen after the Windows Booting animation and I came across the above linked topic.
So I installed an older driver, i. e. the 15.3 beta. But after installing it, the screen is blasted with horizontal weird pixely lines.
Tomorrow I would like to try another driver, but I'm kinda sceptical.
Do you think its really a driver thing or may be GPU be broken?
The system is back from 2012:
Sapphire 7870 OC 2 GB
1600 Mhz DDR3 CL9 2x 4GB