Quote from: pbfarmer on December 30, 2018, 12:45:23 AM

Quote from: livada on December 29, 2018, 11:32:00 PM

Quote from: pbfarmer on December 29, 2018, 10:43:12 PM

Quote from: nordmann666 on December 29, 2018, 03:15:02 PM

Quote from: pbfarmer on December 27, 2018, 11:08:20 PM

mem P3 will always be set to P4 core in PPT. You can override this in ODNT w/ a profile later *if necessary*, though it shouldn't really ever be necessary. 'Mem voltage' in PPT and profiling tools (ODNT, wattman, etc) is simply a floor for core (and soc) voltage. If it's set below your core voltage, it's pretty much inconsequential (though I'm not certain if it also sets a floor for AVFS feature, so a reasonable number may still be desireable.) On the other hand, if your Mem P3 voltage setting is above your core P7, then you will run core at that voltage instead. Your actual mem voltage is fixed in the BIOS.

regarding stability - are you trying to get to effective 1450 @ 850, or your setting is 1450? If it's the former, that's likely just not possible. If it's the latter, i wouldn't focus so much on the setting, but rather look at the effective. I have some cards that drop 100Mhz under load (and therefore need to be set ~1500,) while others only drop only 25Mhz (and can be set closer to your 1430 number.)

so if i understand you...after i have to set P7 Core to 860 (everything lower will result in instant crash or core speed 850MHz) i can also set Mem P3 to 860 cause it will not affect the power consumption?
and i tried P7 1400 with 830,840,850mv but nothing to get stable - after 860mv i can push P7 until 1460-1480 (effective 1375-1395 depends on card)

it´s most important for me to reach stable hs around 1900-1950 with lowest possible power consumption. with getting back to vega 56 bios i save 10W/card - thats good..but the cards need 160-170W - to much

Yes, you can set mem-p3 to anything <= core-p7 and it will not affect power consumption. Or you can just leave it set to whatever you have in the PPT, as you will always be using your core-p7 mv while mining.

As for your stability issues - i would guess you're running up against SOC/controller power needs, rather than core. A 5-10mv change in voltage probably wouldn't give you an extra 80+Mhz headroom for core, so it's more likely the 860mv is required for the 1107Mhz SOC (56 still runs 1107 for the top state despite the much lower mem clock iirc.) If you really want lower power, you can try playing some tricks - like locking out mem-p4 and using the mem-p3 as your top state, which seems to use a tiered SOC clock, allowing something closer to the necessary <=950Mhz, which should further reduce power needs. I've only taken a cursory look at this functionality tho, so can't say for sure whether it will work.

How you chg p4 mem in ODNT? only p3 in Sad

How you change SOC in ODNT?
i use PPT generator but question is:
in ODNT i chg p3 mem etc 1100/860mv . what p4 mem use in ppt table? more = less ?
SOC on my vega56/64bios is 1200. Must change this?
http://imgbox.com/sRzuqn07

put your ppt table here for 56 and 64 .

now i use 940mhz/900mv 1500/900mv and i have 6*vega nitro+ hynix- 11600hr with 1080W from the wall or 11950Hr with 1150W for the wall.
ref card 56 samsung use 64 bios and 900mv and have 2030hr and vega 64 LE with 900mv have 2145hr

Sorry, meant p3 - 0-indexing got me... (fixed in OP)

You can't necessarily change SOC, it's auto-scaled based on mem clock. From my tests it seems p3 has a floor at SOC pN-1 (1107), while p2 scales lower, which is why i suggested locking out p3 and using p2 as the top state, since SOC clock only needs to be >= mem clock. SOC clock is in BIOS, and as you showed, is actually extracted to PPT, but I haven't had any luck changing it via PPT w/o crashing the GPU.

Hello ,
I try to understand your conversation but my english is bad and my understanding about PPT are worst.
I'm trying to make my RX Vega 56 and 64 stable ( reference card with blower ).
I'm using these for now,
[Profile_0]
Name=Vega64
GPU_P0=852;900;0
GPU_P1=991;900;0
GPU_P2=1084;900;0
GPU_P3=1138;900;0
GPU_P4=1150;900;0
GPU_P5=1202;900;0
GPU_P6=1212;900;0
GPU_P7=1395;950
Mem_P0=167;900;0
Mem_P1=500;900;0
Mem_P2=800;900;0
Mem_P3=1090;900
Fan_Min=3000
Fan_Max=4900
Fan_Target=70
Fan_Acoustic=2400
Power_Temp=85
Power_Target=0

[Profile_1]
Name=Vega56
GPU_P0=852;900;0
GPU_P1=991;900;0
GPU_P2=1084;900;0
GPU_P3=1138;900;0
GPU_P4=1150;900;0
GPU_P5=1202;900;0
GPU_P6=1212;900;0
GPU_P7=1395;950
Mem_P0=167;900;0
Mem_P1=500;900;0
Mem_P2=800;900;0
Mem_P3=925;930
Fan_Min=3000
Fan_Max=4900
Fan_Target=70
Fan_Acoustic=2400
Power_Temp=85
Power_Target=0

Some Vega 56 are running around mem 900 others around 945, core is always 1395 .
I get between 1850 and 1950 for vega 56 and 1900-2000 for 64.
If I understand mem voltage will be the same as core is this one is higher ? so no need to set up this one ?
What are the best setting to get stability and if possible the best hashrate, ( I don't care about consumption it's winter here )

Best regards