Quote from: playfast on April 18, 2018, 12:15:32 PM

Looking to reduce power consumption on my rx560 rig, Afterburner can't access voltages so finally got around to installing OverdriveN tool.
On power limit -5% my cards can do max 1208mhz core without throttling, keeping it there as it's closest to stock core speed without going lower, don't wanna go "lower than what I bought" I'm weird like that haha.
I undervolted to 950 mV, went down to ~37W per card, they did up to ~48W at stock 1050 mV, might try to go lower but I worry about stability.
I read that the rx 550 can go down to ~30W at similar voltages? That's awesome, is it because of less ComputeUnits?

I finished testing them today at lower voltages with the same -5% power limit @ 1208 mhz. Tested with Claymore Zcash since it stresses core the most. It straight crashes at 880 mV, at 885 mV it gives errors then crashes, at 890 mV it doesn't crash but gives errors. At 897 mV it runs stable but this is where it starts to lose hash rate. So I settled on 902 mV, they use ~34W each. I reduced overall consumption by ~42W against stock with 3x 560's.