Got my 3 x Vega 56, with original BIOS, doing
1800 H/s (XMR) @ 160W each. Total system on the wall: 570W (cause iGPU is active)
The system is stable, mining non-stop.
64 bios only helps to increase power consumption... unless you use the Soft Power Table at Windows regedit. This method, way more complicated, will push the V56 to stable 1880H/s with slightly less power (560W for 3 V56).
Wattman Settings (Blockchain Beta driver):-30% GPU Frequency;
950 HBM Frequency;
Fans at 3500 - MAX (Ignore core thermals. What you need is to have the memory below 70º to keep the high hash rate. An undervolted gpu will be fresh enough to not auto raise the blower speed, hence not cooling the memory. At 25ºC ambient temperature I needed 3500RPM set at min speed);
Power Limit -20%.
Globaldrive settings (Blockchain Beta driver):Crossfire disabled;
HBCC on, at max memory available (I'm with 16Gb RAM).
Important note on HBCC:Every restart, every time you unplug the monitor/dongle, every time you simply turn off the monitor,
HBCC will get disabled and hash rate will go down.
I recommend having an HDMI Ghost/Dummy Dongle
like this. It's way more efficient than a monitor 24h powered on.
When accessing the machine remotely via team viewer, go to Actions > Log off Settings and disable the windows log out on team viewer session end. The log of will not disable HBCC but the next log in will.
XMR-STAK-AMD settings (2 threads gpu):"gpu_thread_num" : 6,
"gpu_threads_conf" : [
{ "index" : 0, "intensity" : 2016, "worksize" : 8, "affine_to_cpu" : false },
{ "index" : 0, "intensity" : 1600, "worksize" : 8, "affine_to_cpu" : false },
{ "index" : 1, "intensity" : 2016, "worksize" : 8, "affine_to_cpu" : false },
{ "index" : 1, "intensity" : 1600, "worksize" : 8, "affine_to_cpu" : false },
{ "index" : 2, "intensity" : 2016, "worksize" : 8, "affine_to_cpu" : false },
{ "index" : 2, "intensity" : 1600, "worksize" : 8, "affine_to_cpu" : false },
]
If you can't have the above settings working stable...-Do a Clean Install of the Blockchain Beta driver (Clean install on AMD's setup screen is enough)
-Activate HBCC for all cards;
-Apply Wattman settings;
-Start with 1012+1012 intensity and make it stable. That should give you 1600 H/s;
-Then raise it to 1512+1512 intensity. That should give you 1700 H/s;
-Finally, push it to 2016+1600 intensity.
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Note:Many questions have already been answered at my
Reddit post:
If this helped you, i'll be pleased with any donations:XMR: 41fhzSfZAmpGTszr9KXYVS7JEyGYv8rYMcSukgnDJMPkAC7wGVQDj1EaNswxftx1Fk3DbefJ4g83cec
hMgEK9hGbVVyuq4C
ETH: 0x3e3078D8898f6b3907C5a6752d9BBa13D1df33eB
