Originally Posted by fyzzz
There is so much potential in this 390 bios, but the blackscreens are getting on my nerves. One moment it can be fine and suddenly blackscreen! I thought it helped to mod in the 290 voltage table, but it just want to blackscreen at 1200+ mhz. It is so sad because this bios performs crazy good, i mean 15k gpu score at 1245/1750 and i know my card can reach higher, but this bios just gives me the blackscreen.
Broke 15K at 1233/1620 150mv without any effort. Some artifacts and no black screens. http://www.3dmark.com/fs/5662841
Great potential for gaming, i thought!
I realized I can benchmark at 1080P (my screen resolution) @ 1200/1600 137mv without artifacts or blackscreens.
But then I realized my card blackscreens instantly
if I try to game at 3k or 4k resolution with these clocks.
So, I decreased my memory clocks until it stopped blackscreening at 4K, but it never stopped blackscreening.
So, I decreased my GPU clocks until it stopped blackscreening at 4K, but it kept blackscreening.
That's when I realized my card will blackscreen at 4K if I use more than ~110mv on the core. Bummer.
So, I fixed the vcore at 100mv and reached 1200mhz on the GPU Stable at 4K
Next, I tried to overclock the memory but I found I could only reach 1350mhz stable at 4K.
For added stability, I game at 1190/1345. No Issues the entire weekend.