So I also got a Rig running with 7x Sapphire RX580 Nitro + 8GB
5x with Micron Mem and
2x with Samsung/Hynix [GPU1 and GPU5[ (why are 2 Mem's on one card?)
Windows 10
Blockchain Driver
PCIE0+PCIe1 Gen1

The bios for all gpus are patched with PolarisBiosEditor166 One-Click-Patch!
Read and written with newest WinAtiFlash.

The command line to start Claymore looks like this:
EthDcrMiner64.exe -epool eth-eu1.nanopool.org:9999 -ewal WALLET_ADDRESS.rig1/EMAIL -epsw x -dcoin sia -dpool stratum+tcp://sia-eu1.nanopool.org:7777 -dwal WALLET_ADDRESS/rig1/EMAIL -dpsw x -ftime 10 -dcri 20,20,20,20,20,20,20 -cclock 1200,1160,1200,1180,1160,1180,1200 -cvddc 875,885,875,880,885,885,875 -mclock 2150,2100,2150,2150,2120,2100,2150 -mvddc 875,885,875,875,885,889,875 -tt 57,57,57,57,57,57,57 -fanmin 42,42,42,42,42,42,42 -tstop 78,78,78,78,78,78,78

I get a complete Hashrate of 209MH/s ETH and 4150 MH/s SIA with a power consumtion of 1150W from the wall.
ETH: GPU0 30.355 Mh/s, GPU1 30.056 Mh/s, GPU2 30.396 Mh/s, GPU3 30.398 Mh/s, GPU4 29.679 Mh/s, GPU5 28.629 Mh/s, GPU6 30.388 Mh/s

The fans are running at around 50% and the temperatur of the GPUs is around 48-52°C so I think this is not bad at all.


I think I have to tweak the Core and Mem settings (clock and voltage) a little bit more, so I can decrease the power consumption maybe by 50W but I didn't think I get that RIG under 1100W.