Hey all, first post, here.
I have an 8x Vega FE setup. One card needs to be repasted, as it will throttle, but it is hashing OK.
All other cards are hashing at 41.64 MH/S. Total rig is hashing at 328 MH/s stable at around 1370w.
For whatever reason, I am not able to apply any voltage settings to the cards and remain stable, and/or see a change in power draw. I have tried different power targets, as well as applying voltage tweaks through Hive. Unfortunately, no dice for me. I am running v06-199 and teamredminer. FYI, yes, I did try to apply the voltage settings while the miner was stopped, then a hard reboot. This still did not work for me. Voltages stayed at 220w.
The only way I was able to achieve my personal results was through trial and error. These steps had to be followed in this exact order, or the results would not generate. Though, I can verify that the rig will replicate the same results every time if done like the below.
- Before miner starts, set all cards’ target power to 170w and fan to desired level. I set my fans to 92% as I have a dedicated mining office. Noise isn’t an issue.
- For this to work, I had to modify one GPU first, then set settings to the rest of the cards. I first modified GPU #8 (listed 7) to 1100MHZ core, and 1025MHZ memory.
- After GPU #8 applied it’s settings, Hive would actually decrease power across the remaining cards, while attempting to hit the 170w target on GPU #8. The rest of the cards would settle in at around 130w, while GPU #8 had O/C settings applied, and pulled ~170-175W.
- Then, I applied these O/C settings to the remaining cards. All cards settle between 165-175W. Aside from the card with the thermal issue, all cards settled in around 38MH/s.
- Finally, I then applied amdmemtweak settings. The only two commands I used were --ref 17500 and --rfc 300. Thanks to the users who posted. The wattage increased slightly per card, maybe 2-5W, after the settings were applied. All cards settle in at 41.64MH/s.
As I have tried to bump the memory speed up to the 1100MHZ target, power draw increases. All the cards seem to pull around 200W each. I personally decided it wasn’t worth it and left the cards at the above settings. However, I will say that applying 1100MHZ for both core and memory yielded a 44MH/s result per card.
I hope this helps people who aren’t able to apply voltage settings like me. While the target power % doesn’t seem to be working accurately, it was still able to help me achieve the above results. If anyone has any ideas as to maybe why I am not able to apply voltage properly, please let me know. I’m sure this system has room for a little more performance while using less power.
The only dumb question I have is: Am I supposed to be applying ~890-900mV to Core and Memory (MVDD), or the mem controller (VDDCI)?