Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v7.0 (Windows/Linux)
by
scryptr
on 12/09/2016, 02:14:36 UTC
So I got an H81 BTC PRO board, currently 2x 1060s, 480, 2x 470.  Can only use 4 GPUs at a time, Win7 sees all, but 1 will be inactive.  Does the 6 gpu mod for Win7 work with Polaris cards?  I can switch the 1060s with more 470s if I need to.

Also, is undervolting supported on Linux currently?  This is a huge feature since I can save ~150w+ for the rig going from 1150mv to ~960-1000mv, and get better boost clocks.  Is EthOS easy to use CDM?

I was not able to run 6 cards ( rx480 ) with windows 7 at all . 4 was running ok , 5 had some stability issue , 6 never worked ... Tried everything Smiley Switched to win 10 , everything working fine . Installed WIN 10 ( disabled all updates , all automatic downloads ) , Intel Inf Utility , and rx 480 driver . With default settings all card hashing with 24.7 MH/s taking 1100 watts at wall ( 120 V ) , Then i "underclocked" my cards ( power limit , gpu speed - voltage , mem voltage ) ,    power usage at the wall become around 750Watts without pushing the default mem clock higher , with the same 24.7 Mh/s . Saved 350Watts per rig Smiley around 700watts ( with my 2 setup in the same frame) Used wattman for underclocking .

 
Built a 12 cards ETH Miner , with 12 RX 480 / 2 asrock h97 anniversary Mobo , left a place in the middle for a additional micro itx board and 4 more cards Smiley Still try to find a  stable mem overclocking settings .




is not possible to use more than 7 vga on the same system?
using an adapter 1 to 3 ?

NOT ALL PCIE-SPLITTERS ARE THE SAME--

I have a 1-to-4 PCIe splitter that worked with a GTX 550ti and a GT 9800+, with a GTX 750ti on the motherboard.  The 3 cards mined scrypt, but were not very fast.  The GT9800+ got 14kh/s. 

I was never able to get the splitter to work with any cards more modern; the GTX 550ti was compute 2.1 and the GT 9800+ was compute 1.0.  An American made splitter will likely cost more than a motherboard.  The model I bought cost $75, a new one today runs $45.  I tried with AMD cards also. with no success.  Asian 1-to-3 and 1-to-4 splitters run $35 to $50.  Good luck.       --scryptr