My 6x Vega 56 rig on Onda D1800 finally works like a charm.
Averaging 1940 h/s per GPU so just over 11600 in total, for 1350W at the wall.
For the records, that's better than my two 7x RX570 rigs combined (11200 h/s for 1650W), without any single bios, SOC or soft power play mods.
Those bloody Vegas really are good.
I only wish CastXMR would allow you to set failovers...
Those numbers are pretty bad tbh.. You might want to modify/tweak your cards a bit more. This guy on youtube is getting 15.5kh/s using only 1400W.
https://www.youtube.com/watch?v=7r93A4SJts0They're stock numbers. I haven't modded anything.
I don't know if there would be much to gain from going through the trouble of flashing all cards to 64's, playing around with soc and soft power play tables just to gain a few hashes. Now I could probably do with a little less power to the GPU cores, that would surely help consumption-wise...
you don't need to mod anything, use Cast XMR with little tweaks recommended out there and you can get 2000H/s at 160W power consumption without touching your Vega 56 bios -you don't need to-
Honestly if you know of little tricks that will make me gain 60+ H/s and reduce wattage by 60+ Watt per card without mod, I'm all ears, please share your wisdom!
Gandalph3000 cryptoNight guide, and Cast XMR.
Just a tip, never use HBCC toggle in AMD Wattman, just enable and disable the Vega GPUs in the Device Manager in Windows if you need to restart them 'cos of a hashrate drop.
Also
http://vega.miningguides.com/ is great to learn how to disable Crossfire and set virtual memory in Windows, large pagefiles, etc.
Some additional AMAZING tips:
Step 1: Configure BIOS SettingsBefore we even get to Windows, make sure your mining computer’s BIOS settings are in order. Power on your computer, and press the “delete” key a few times immediately after power on. You should end up in the BIOS configuration area. Do the following, then save & exit:
Change power options so that the computer automatically turns itself on whenever power is restored. The reason for this is two-fold: first, it’ll make sure that your miner automatically starts up after a power outage. Second, it makes powering the computer on much easier if you don’t happen to have a power switch connected to the motherboard.
Disable all components that you don’t plan to use. This might save a little bit of power, and since your miner will likely be running 24/7, it’ll add up. For me, that meant disabling onboard audio, the USB 3.0 ports, one of the SATA controllers, the Firewire port, and the serial port.
If you’re running a lot of GPUs (4+), additional tweaks might be necessary to ensure that they’re all recognized by the OS. Exact tweaks vary by motherboard, but setting the PCIe speed to Gen1 is usually a good place to start. No need to change anything now, but make a mental note that you may need to come back and play around a bit if all of your GPUs don’t show up in the OS later.
Step 3: Configure automatic loginIf you’re building a dedicated mining rig, then you probably want your mining rig to boot up and start mining automatically, without any user intervention. We’ll need to enable auto-login for that to be possible.
Right-click on the Start Menu and select “Run”. Type “netplwiz” (without the quotes) at the prompt, and click “ok”.
Uncheck the box that says “Users must enter a user name and password to use this computer”.
Click “Apply”. You’ll be prompted to enter your password to confirm the change.
Step 11: Configure your miner to start automaticallyWe want our rig to automatically start mining whenever it’s powered on or rebooted. That way, we keep mining losses to a minimum whenever a power outage occurs, and we don’t have to worry about manually starting it back up in other situations.
Open Windows Explorer and navigate to the folder where you created “mine.bat” in the previous step.
Right-click on your mine.bat file, and pick “Copy”.
Now, navigate to %AppData%\Microsoft\Windows\Start Menu\Programs\Startup (should be something like C:\Users\[YOUR WINDOWS USERNAME]\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup).
Right-click anywhere on the empty background of the Startup folder and select “Paste shortcut”.
You should see a shortcut to your mine.bat file appear in the startup folder. Windows should automatically execute it upon bootup.
