Is anyone still mining with r9 390 if so what are your hashrate I'm only getting 25 which I could swear I was getting 30 awhile back, maybe I'll switch back to blockchain beta drivers
I am getting the same issues with my R9 290. I started noticing the hashrate decrease about 6 months ago. Seems its a DAG thrashing issue like with the R9 280X and the RX series before the AMD issued the fix. However the blockchain drivers make no difference with the R9 290 only the RX 470/570.
Nothing you can do really. AMD won't issue a fix because they are old GPUs and they probably want miners to buy the newer GPUs instead.
Due to this bug, its no longer profitable mining with these GPUs.
same problem here, 290X - now i have only 22MH/s at stock and 26.7MH/s with big overclock and nothing helps
![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
i remember i got around 30MH/s before year
maybe bios change to 390x could help?