Memory leak: just redownload v12.2, see note in OP.
-i 8: done, you can use it already.
-i 8 dont work on modded r9 290x 4 gb. low rate. -i 7 work fine
I have the same problem -i 8 on 290 makes all other cards run at half speed 390 and 280 on the same rig but -i 7 is fine anyone no why I have downloaded the updated version so that's no it