Post
Topic
Board Mining (Altcoins)
Re: PhoenixMiner 5.3b: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
by
grazzyman
on 03/12/2020, 00:27:30 UTC
Hi,

I'm really struggling here.

Was using Claymore until this morning, when it died...and used the opportunity to swap over to PhoenixMiner.
Using the same settings hasn't been so simple.
My MH/s on my RX580's have dropped from a stable 32Mh/s@77W to 19Mh/s.

My setup:
2x RX580 + 2x GTX 1070
Windows 10
PhoenixMiner 5.3b
AMD driver 20.4.2 (with compute)
Stock GPU BIOS

I've tried everything to get an increased speed:

Re-install drivers
Using OverDriveNTool to alter AMD Card settings (this is what I used with Claymore)
Using PhoenixMiner to alter AMD Card Settings
read the readme and tried several options (-vmr, -gt etc.) - no improvement
tried autotune
played with the strap, rxboost etc...

I feel it is PhoenixMiner not applying the correct strap. It's probably a bit more complicated as I have the 2 NVIDIA cards there.
The NVIDIA cards are running about 1MH/s slower, but I can live with that for now.

On claymore my settings were:
-epsw x -eres 0 -strap POL8H1,POL8H3,POL8H1,POL8H3,1,1 -rxboost 21 -sintensity 75 -mode 1 -mport 0 -tstop 75 -tt 60 -fanmin 20 -fanmax 85 -wd 1 -r 0 -ftime 5

On PhoenixMiner they are:
-coin etc -straps 1 -vmr 33 -tstop 75 -tt 60 -fanmin 20 -fanmax 85 -wdog 1 -rmode 1 -acm  - Getting 19.5 Mh/s

I also tried this: (setting a '0' for my NVIDIA cards so not to alter their mclock etc.)
-coin etc -straps 1 -nvmem 1 -tstop 75 -tt 60 -fanmin 20 -fanmax 85 -wdog 1 -rmode 1 -acm -cclock 0,1200,1175,0,1200,1175 -mvddc 0,850,850,0,850,850 -mclock 0,2150,2125,0,2150,2125 -cvddc 0,850,850,0,850,850 - Getting 20.2 Mh/s

Does anyone have any ideas? Thank you.