Topic: Any word on amd vega hash rates? - page 96. (Read 202725 times)

What miner did use?

Guys, if you have good memory cooling cards there are some good news.
Original idea from overclock.net's gupsterg and Nuke33 and me.
We found a way to overclock HBM2 memory further.
All is done via softpowerplay.
Seems it can oc stable to 1150-1170 mhz.
eth speed goes to 46.2+mhs (old 44.2).
xmr goes to 21502050+h/s (old 1990).
It is Vega64 LC 1408/1150@905mV
No other tweaks except memory speed boost applied.
Consumption increase is negligible.



Disclaimer! This is only tested for few hours. No responsibility if you'll burn you cards.
Disclaimer 2! With mem speed higher then 1150mhz seems to produce fake hashrate. Meaning that memory errors lead to less found shares. Pity we have no tools to track HBM memory errors as we have with polaris cards.

I'm running 2 x 1200 Watt for 8 cards. Not 4.

I have underclock the cards but they were not stable in any case. The only variable I changed to make them stable was giving a lot of headroom for the Vega to spike in terms of PSU

thank for this

And here some benchmarks.
Granted, they are no mining, but nevertheless interesting

https://www.phoronix.com/scan.php?page=article&item=rx-vega-linux1&num=1

Here's some info on getting it running under linux, headless for compute workloads only (what we need):
https://www.phoronix.com/scan.php?page=article&item=radeon-vega-setup&num=1

Locks like only units were able to launch 4+ card in one rig and this rigs are working and not failed. Very strange that too much description about 150W per card, but all use 2x1200WATT psu for 4x cards.
Or I'm wrong ?

It depends on what reg hack you are using.
If you didn't change gpu clocks in P1-P5 states then for Vega64 bios 1408mhz is a "magic" number you should set.
You can easily test if your reg patch applied correctly with OverdriveNtool. Just check "greyed" voltages in P1-P5 power states.
They should have values that you put in registry.
By the way, recent OverdriveNtool 1.21 can do softpowerplaymod for you in very convenient way. Just run it as admin and find this option by clicking to upper left corner (to the icon)  

Any chance this is working yet in Linux. Just built another Vega rig and this windows pos keeps blue screening when running the cryptonote algo and yes I've tried adding more power, less frequency, and a bunch more variations. The drivers amd makes are such garbage I may have to return these week old Vega 56's. I just don't have time to be tinkering with such trash software like this.

I got another rig running just fine btw with the same settings a few people posted in this thread. I'm using identical hardware so we can rule those all out too.

the Powerplay i did was for 1100 mem with 900v
and core is 1012 to 1407 with a 905v
does that seem right?

seems like one of my cards the powerplay isnt sticking not sure why, i have 5 folders in the registry and i check to see what ones say vega and applyed to all those.
how do i default back to stock if i wanted to?
and what if i by mistake apply it to my igpu?

This is my experience running on some rigs

Windows 10 (no Nix yet though I will switch soon)
Asrock 110
7 Vega / 1-2 Nvidia 1060

PSU is your stumbling block
You will need to have enough juice for the Vegas. Power draw from the wall will show way lesser usage but I have not have anything that is stable besides having an overkill in terms of PSU.
Stable rigs are running
2 x FSP 1200watt / 1x 1600watt (chinese OEM brandS) + 1x FSP 1200 watt / 1 x FSP 1200 + 1 x Corsair 1000watt

YMMV

hey, I have 6 vega 64's and a 56 since their launch date, been travelling round the world for btc events and my dad has been going nuts restarting the rigs every hour...

wattman settings I can never get to save after reset - so my usb watchdogs are useless

Is there somthing Im missing?

It seems in this thread people say no more then 4 vegas, so tried taking 3 out (rig was 4 1070s and 6 vega 64 1 vega 56), still extremely unstable, asrock 110 board...

Should I take the 7 vegas and put them 4 and 3 in dedicated rigs? I have some extra mobos..

Any idea how to get wattman settings to hard save?

Cheers

Sounds like your powerplay edit didn't set properly or at least the voltages. Make sure your "memory" volts are set equal to your core

I'm running 3 Vegas with 5 nvidia gpus in 1 rig without any problem. It was speed drop but I solved it by removing nVidia-related tasks from Windows Scheduler.
[/quote]

I have a question for anyone else who is trying to get 3 or more Vegas working on a MSI X370 Gaming Pro Ryzen board.  Two Vegas -- not a problem; mines fine.  Add a third Vega card and you can't boot.  After reinstalling Windows, adding RAM, switching RAM, DDU cycles, driver installs, and so forth, I found that if one goes into the Registry folder for each card and disables crossfire (set value to "0" instead of "1"), I can then boot with 3 Vegas.  They appear just fine in Device Manager, I can reboot, etc., and three Vegas show up in Device Driver.  But when I try to use Radeon Settings, or OverDriveNTool, or GPU-Z the computer freezes, them reboots, etc. 

To be clear, you can't get to AMD Radeon settings to disable crossfire once you install a third card because the computer freezes on startup.  You can do it in the Registry settings after you get two cards working, then you install the third.

If you figured a workaround, please PM me. I think this is specific to the MSI X370.  Yes, it has the latest bios, yes I have 16GB RAM, yes I set the Paging file to over 30GB.

Also, not a great card for a dual PSU type of setup.  If you power the Vega from one PSU but remove the riser from the motherboard during troubleshooting/rebooting, the card will just heat up and the fan will never spin.  It gets scary hot.  Maybe a reason not to flash to the 56 with the 64 bios...

I think it is crazy the the beta blockchain August 23 driver for miners by *default* sets Crossfire to active.  Why?

Separate question:  if I can control Crossfire settings from the Registry, why can't we control the HBCC settings and values for each card from the Registry?  I hate the bloated, slow, adware Radeon Settings app.  I only need to do four things using Radeon Settings:  reset HBCC and set the value/hit apply; change memory, fan speed, and temp to manual from automatic.  It is easier to control everything else from a saved profile in OverDriveNTools.  Anybody figured out how to control other Vega settings from the Registry?

So im running 2 vega 64s and 2 vega 56 flashed to 64 bios.
Did soft power play registry.
  Im getting about 7700-7900. but some times it seems to drop to around 7600.
Other problem being my total power at the wall ATM is 940W seems high to me.
my sysem idle is around 50-60w.
Any ideal on howto bring the power down to the 130w even 150w each?

polaris cards have never had issues with downvolting,
with my vegas in after burner with the lastest. blockchain drivers the voltage slider is disabled like it is for nvidia cards
even after i enable voltage overclocking and underclocking like i have always done on m polaris rigs

why would have to do a registry hack to undervolt ? Never had to do that on my polaris rigs on the AR 270 asus board

I'm using different ccminer versions as well as EWBF Zec miner. Scheduled tasks - there were 2 nvidia tasks scheduled to run once a day. After disabling it - speed is constant high now.

He will probably tell you to pay him .3 ETH for any advice...

@rednow what miner are you using for the Nvidia cards?  I was using ethminer and it kept resetting the hbcc every so often. What scheduled tasks were there to disable?  Would love to get more cards up in this rig.  Also do you use afterburner to tune the Nvidia cards?

I'm running 3 Vegas with 5 nvidia gpus in 1 rig without any problem. It was speed drop but I solved it by removing nVidia-related tasks from Windows Scheduler.