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post #821 of 893
Thread Starter 
Thanks smile.gif .

All is still working well, I have redone testing this morning again for ~2.5hrs.

Before I place what I tested yesterday in OP I'm gonna do another differing round of testing. Through this testing/tweaking I think I may know why originally HBM DPM 3 is associated with SOCCLK 5 and perhaps I need to keep ucSocClockIndexHigh as 5 and edit SOCCLK table DPM 5 upwards to take into context the change to HBM DPM 3 to 1100MHz.

I have seen that but not played with it, I'm sorta moving through things as and when, but thanks for info smile.gif .
Edited by gupsterg - 11/20/17 at 8:55am
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post #822 of 893
Per white paper as I understand, SoC clock control exists so that engine clock can stay low during video encoding decoding workloads. Can't see how that would benefit 3D workloads. Curious if there are any negative effects with SoC down clocking and 3D loads.
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post #823 of 893
Thread Starter 
Don't know.

All I know so far is HBMCLK links to a SOCCLK. SOCCLK must be equal or above target HBM clock to gain it, this was what Nuke33 found on driver prior to v17.10.2, link. From driver v17.10.2 AMD changed something so we didn't need SOCCLK mod, I can't recall if it went above 1107MHz by itself. I may go back to a driver prior to v17.10.2 and see what occurs. Also we never had the ability to see SOCCLK until Mumak implemented it, ~at the point we started to explore mod/just before v17.10.2 driver came out.

So far in 2 VBIOS that I'm now looking at more closely, the V64 AIR & AIO, HBM DPM 3 (highest) will link to a SOCCLK at a lower index within the table. On V64 AIR HBM DPM 3 links to SOCCLK DPM 5, which is 960MHz. V64 AIO HBM DPM3 links to SOCCLK DPM 2, which is 960MHz. V64 AIR has 8 SOC states, V64 AIO has 5 SOC states, both cases highest SOC DPM has 1107MHz

Next WattMan/OverdriveNTool takes the link # that HBM has to SOC and then displays the same # GPU DPM mV in voltage lookup table as HBM mV. I believe this may dictate from what GPU DPM # onwards uses HBM DPM 3. I was going to test this but not had a chance yet.

The other thing which I noted/posted was when I made HBM 3 1100MHz in PP mod, but it was still linked to a SOCCLK of 960MHz. After some time of usage the GPU was stuck idling at HBM 500MHz, instead of 167MHz and also idle voltage then become 900mV, instead of <800mV. If I apply my own voltages to GPU then this idle fix to voltage is undone. It seems regardless of using WattMan or PP mod, when we take control of voltage idle is 900mV. Power usage does not seem to rise as I believe GPU does gating.

PowerLimit, Clocks and State array change do take affect even without moving WattMan to Custom, voltages only take with move to Custom+manual voltage.
Edited by gupsterg - 11/21/17 at 10:37am
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post #824 of 893
I would like to share my (empirical) tests that have led me to what is listed below.
It owns an RX Vega 56 with Vega 64 Air BIOS (8769).
For daily use with temperatures and noises for me acceptable i set max voltage at 1,050 mV and adjusted the frequencies to what my card could support (Max 1,632 MHz).
I set min PWM to 15%, Fan Acoustic Limit and Throttling rpm at 3,000, min rpm at 8 (800), Target Temp. to 63 °C.
I also increased the TDP to 265 W and TDC to 360 A.
Then I am dedicated to HBM!!
I wanted to take advantage of the 1,199 MHz SOC Clock that allows the HBM of my card to arrive at 1,190 MHz with artifacts when the temperature rises, but they are perfectly stable at 1,115 MHz with the temperatures allowed by the blower.
To prevent the frequency of HBM from falling when the GPU uses Pstate lower than the DPM 5 I had to Downclock also DPM from 1 to 5 otherwise the higher voltages in these Pstate did not allow me to get my goal.
At that point I have associated P1 HBM to the P1 GPU, P2 HBM to P2 GPU and P3 HBM (at 1,115 MHz) to the P3 GPU; In this way the memories are running at 1,115 MHz already starting from the P3 GPU.
I attach an image for a 4k Superposition test and its hml file in addition to my reg file.
I hope that sharing this can serve more experienced people to out further the functionality of these cards.
Thanks for reading and sorry my English (Bing translator).




Leons.hml.zip 9k .zip file

Leons.8769.reg.zip 1k .zip file
Edited by Leons - 11/21/17 at 7:11pm
post #825 of 893
Thread Starter 
Last night tested:-

i) changing PP_DisableVoltageIsland key in registry, to 0 and 2.

ii) deleting PP_DisableVoltageIsland key in registry.





This has no affect for me. Regardless if I use a PP mod reg file, with or without changing to Custom/Manual Voltage. It seems we have no way of applying voltages to a DPM via PP reg mod without using WattMan to go Custom/Manual voltage frown.gif .

Also changed ucGfxVoltageMode to 2, ie ATOM_Vega10_VoltageMode_Static as per definitions. This again had no affect, even if GPU DPM 5 6 7 were set to ACG 0 (ie off).

@Leons

My testing is echoing Nuke33, going to SOC 1199MHz via PP mod caused instability. f@h on GPU crashed intermittently for me, other tests were AOK, I was using 1100MHz HBM, which has been tested vastly with gaming/f@h/Bionic, but as that was with no SOC PP mod I had 1107MHz as SOC.

I am now using SOC PP mod for DPM 5 6 7 of SOCCLK in PP mod on V64, 1107MHz. ucSocClockIndexHigh in state array is 5 and also HBM DPM 3 is still linked with SOC DPM 5. This way I've kept the linking as stock, but SOC DPMs from 5+ match the increased HBM I use.

I would suggest using SOC value slightly above HBM MHz you use. I do not know if it takes that or jumps to 1199MHz, Nuke33 may have shared his experience on this in past posts. I do believe I have seen steps in monitoring between 1107MHz and 1199MHz, will have to look at logs.
Edited by gupsterg - 11/22/17 at 1:36am
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post #826 of 893
@gupsterg


How does one gain access to the various DependencyTable's and lookup tables ?

I am willing to play around with my card as well but can't seem to find those tables anywhere redface.gif
post #827 of 893
I'm not sure that it may help in your particular situation (I'm not following the thread), but I was able to load custom PP without WattMan and OverdriveNTool at all. Here is my short how-to
post #828 of 893
Thread Starter 
Quote:
Originally Posted by kqpahv View Post

@gupsterg


How does one gain access to the various DependencyTable's and lookup tables ?

I am willing to play around with my card as well but can't seem to find those tables anywhere redface.gif

The tables are in PowerPlay. Use the Linux driver linked in OP to translate header to know locations of table beginnings, etc. There are examples in OP and in recent posts. Sorry no access to a PC for few days otherwise I'd mark a PowerPlay with text, etc.
Quote:
Originally Posted by keksov View Post

I'm not sure that it may help in your particular situation (I'm not following the thread), but I was able to load custom PP without WattMan and OverdriveNTool at all. Here is my short how-to

Thanks, +rep smile.gif . Interesting, when at PC will have play and report what happens on my end wink.gif .
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post #829 of 893
Quote:
Originally Posted by gupsterg View Post


cut...

@Leons

My testing is echoing Nuke33, going to SOC 1199MHz via PP mod caused instability. f@h on GPU crashed intermittently for me, other tests were AOK, I was using 1100MHz HBM, which has been tested vastly with gaming/f@h/Bionic, but as that was with no SOC PP mod I had 1107MHz as SOC.

I am now using SOC PP mod for DPM 5 6 7 of SOCCLK in PP mod on V64, 1107MHz. ucSocClockIndexHigh in state array is 5 and also HBM DPM 3 is still linked with SOC DPM 5. This way I've kept the linking as stock, but SOC DPMs from 5+ match the increased HBM I use.

I would suggest using SOC value slightly above HBM MHz you use. I do not know if it takes that or jumps to 1199MHz, Nuke33 may have shared his experience on this in past posts. I do believe I have seen steps in monitoring between 1107MHz and 1199MHz, will have to look at logs.

My difficulties with English do not allow me to convey exactly the meaning of my post and also to understand in the right way your reply, for this I apologize a lot.
My post did not want in any way contradicting your or intervening in the conversation with Nuke33.
I simply shared my experiences in the hope that real experts like you might perhaps find information that would allow improvements in the management of these cards.
I simply feed myself daily of your and other expert information and for this I can only thank you for the work you do and share.
To conclude, hoping to have correctly transmitted my position as a simple user, I would like to specify that when I wrote that I have associated the Pstate HBM to its Pstate GPU I simply entered the values 0-1-2-3 in the entry ucVddInd in the fields Mem Clock from 0 to 3 of VEGA SoftPowerTableEditor; In relation to the Soc Clock I have not performed any changes I have simply ascertained that with the latest drivers, it is automatically set to 1,199 MHz if the HBM frequency is set to a value greater than 1,107 MHz, but this is also something I learned Reading the posts of this community.
Greetings to all, thank you to exist.
post #830 of 893
To update on my problem with lower benchmark scores and lower maintained core clocks during load with higher core voltage.
It seems to be related to power or current consumption, i finally caved in and did the hardmod for current sense that buildzoid did on his vega FE.

Now the card senses roughly 30% less current than it really pulls, downclocks is history smile.gif
Maintains set P7 clocks during load with up to 1.3v vcore, haven't tried higher yet, so now I'm happy again smile.gif
So i guess that the ACG algorithm definitely takes current or power consumption into account, i guess regardless of where i set power or current limits in softpowerplay table...
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