I've since 1 or 2 months a bug extremely weird. When I overlock my Sapphire R9 270 with Overdire, MSI AfterBurner or Sapphire TriXXX, I've a hard flickering. It's the same if I underclock. And the only way to stop it is to reset to the base clocks.
The problem appears whatever I do (+5Mhz on gpu clock or +1Mhz on Memory clock), and if I up the GPU voltage with Overdrive it doesn't fix my problem.
I tester differents Crimson versions, but the issue is still here. I thing it's since I'm on the Creators Update but I'm not sure (and I can't downgrade anymore...).
I uploaded a video who shows the flickering issue, the link is below. If you need a better video I'll try my best, but my connection is really bad to upload so I've to do something short...
So I would like to know if there's a way to fix my problem...
Video : Flickering R9 270 - YouTube
My configuration :
Windows 10 Creators Update
Amd Crimson Relive 17.5.1
Sapphire R9 270
Cooler Master G550M
All my drivers are updated and Windows too.
Modified : Forgot my configuration