how low can i go with the voltage in afterburner ?

i m currently at -112mv
did not test lower yet

look like average vddc is 970mv  so i guess can go lower

Is that with the 56's running the 64 bios?   It wasn't clear to me if that was factored in at all. 

I was wondering do the vega frontiers perform the same as the vega 56 and 64 (can they get 1800-1900 h/s using the tweaks and the blockchain driver) ?

also If I were to buy the vega 56 and not change the bios but install the blockchain drivers could I get 1800 h/s?

Thank You!

You will need 8gb of ram to activate hbcc using Wattman. I've heard it can be done by disabling each card in device manager then activating again but I haven't tried thisywelf as I had bought an extra 4gb before that fix was found. Still not attempted the reg mod for the power consumption yet. Currently running 4x Vega 64s at 900W 1950h/s per card

does 2100+ out of the box no tweaks, peaked at 2600, had mine running 2100+ non stop for week 3 now

this will disable and re enable all vegas only

Yes, that's the code and it works.  However, this does nothing for the miner itself correct?  So, I still have to be physically present to run this batch and restart castxmr when the hashrate drops.  It needs to restart the miner as well for it to work.  

Excuse me for being a newbie, I am pretty tech and hardware literate, but when it comes to creating batch files and software coding I've had practically no exposure beyond some basic HTML for websites.

I found this:   https://pastebin.com/Q0rGa0QS  

I think that's a complete batch file that I'm looking for, but I'm still trying to figure out how to properly edit it to function completely automatically with castxmr.   It's set up to run with xmrstak.  

I got it to work and it starts castxmr, but it doesn't load my payment address when it starts and it also doesn't restart on it's own when the hash falls.

It runs about 100W on idle but I made no effort to reduce running power so I reckon about 250w

I work away from home during the week doing well paid IT work so I only get the opportunity to tweak at the weekend and if it falls over during the week I'm not there to fix it and I can lose up to 5 days mining, hence stability wins, but its just a hobby for me

I have an issue with my setup.  Can someone point out what I'm doing wrong (my first setup).

I'm getting very low speeds on my 2x vega 56s regardless how I set it up.
I've tried the following with the results:

- index 0 only: 1 thread per GPU 2016 results in 600H/s
- index 0 only: 2 threads per GPU 2016+1600 results in 236H/s
- index 0+1: 1 thread per GPU 2016 results in 1175H/s
- index 0+1: 2 threads per GPU 2016+1600 results in weird rates ID 0 = 132, 1 = na, 2 = 221, 3 = 853 and 1 and and I get CL_MEM_OBJECT_ALLOCATION_FAILURE

"platform_index" is set to 1 (doesn't work when set to 0)
Sometimes xmr-stak-amd freezes when setting up 2nd "Device 0 work size 8 256" or sometimes on Device 1

My setup:
ASRock H81 BTC R2.0 mobo with G3260 CPU and 4GB of RAM running Win 10 64bit
Both cards are connected via risers (PCI-E #2 (long) and #3 (short) are in use out of 6 total) and powered by 1000w EVGA gold
I am connected to the onboard HDMI for monitoring
There are no HDMI dummy dongles in the Vegas
Running blockchain driver v17.7

Anything obvious pops up?  I'll try disabling onboard video and connecting the monitor to one of the Vegas, but can you see any other issues with this?  Pointers perhaps?  

All of this is running on default 1580MHz/800MHz speeds (haven't tweeked any Wattman settings and HBCC is off)

Thanks a lot in advance.