Sapphire Radeon R9 290 4Gb Gddr5
AMD Catalyst Driver Version, and Driver History
14.7 beta, pretty much used every prior beta/release driver
Win 8.1 64bit all SP+uppdates
Flickering when running 4k res with 60hz(unuseble) trough display port. Flickering means: The screens goes black for 1-2 sec, then back to normal. Sometime it does it every minute, sometimes every half an hour. And it doesn't matter if I'm idle in Windows or on full throttle in games.
No flickering when 30hz or lower resolutions. Its not the display nor the cable. I checked with an AMD Radeon 7870 2GB, and it worked perfectly.
Motherboard or System Make & Model
AS Rock Z... (can'r remember)
Display Device(s) and Connection(s) Used
Samsung U28D590D(4k) tested display port 1.2.
Applications and Games
Intel® Core i5. Everything runs in default mode.
Motherboard BIOS Version
System Memory Type & Amount
Patriot PV316G160C9KRD Venom Arbeitsspeicher 16GB (1600MHz, CL9, 2x 8GB) DDR3-RAM
128 gb samsnung ssd
2 Tb storage discs
Anyone have any idea, what I can do?
Forget about: buy a new Cable, buy a new monitor, give back your GPU. Already considered everything. :-)
There are so many people having my issue, so it must be something with software