This is my PPT for my Vega 64:
https://imgur.com/a/NTuNGjT
P0->p6 core are disable and P0->P2 mem too and for the last state I use 875mV but when I check HWinfo when mining voltage is still around 895 mV.
Look like it use the higher voltage of disable state when running.
So I try to change my PPT by using 820mV for all state except the last one for core and mem.
I keep the exact same P7 core and P3 mem but my card is reporting dead almost one min after starting to mine.
Any explanation ?
Thanks so much for the answer , for the bad pool hashrate I just reinstalled 18.6.1 drivers , now seems to be ok . Didn't know what happens.
For the PPT , I checked all my rig ( all running at 895 mV for the good one ) even when I set up 850 mV Core P7 And Mem P3.
When I try to lower voltage for CORE P4 and above I get a crash everytime ( vega 56 and vega 64).
Two ideas : I just lost silicon lotery for all card or my PPT are really bad.
Running drivers 18.6.1
Soc Clock : 1107 ( VEga 64 and 56)
I cannot use mem timing , too much increase in heat and consumption.
I will try to test other PPT.
I’m betting the issue w/ being stuck @ 900mv is due to you having set p0 @ 900. Even though you have lower states locked out in ODNT, you would already be at 900 in your idle state, before ODNT is ever involved. This may very well prevent you from ever going lower.
Best practice is to have voltages in PPT be coded as a floor - this allows it to serve its purpose (removing the uv barrier,) while staying out of the way otherwise. Your idea of setting 820 across the board except for top states is moving in the right direction (though I believe default p0 is actually 800, so 820 is still high.). As for why that approach causes crashes - only thing I can think is that 900 has been a threshold voltage for 1200 SOC in my exp. Are you sure you’re running 1107 SOC? As in, that’s what’s reported in hwinfo under load?
Yeah P0 was 900mV in my PPT , I cannot check with hwinfo because my rig crash I use it when mining. But I checked with the excel generator and for 1107 SOC and I have the same value in my PPT.
I will try 850mV PPT from ingyenfrag (Page 67) to see is there is any change