How is it possible, that going from ETH single mining to ETH+DCR dual, my ETH hashrate increased as well? I have 3x rx570 and 1x rx460, and am getting 99,3Mh ETH and 1650Mh DCR. -dcri 5,30,30,30.

I managed to set my rig to steady 99,6MH and it stayed that way for 3 or 4 days and then all of a sudden, it became kind of unsteady... I OC with command line, and I always have to start the miner twice before there is any effect. Plus, the computer seems to restart here and there without any apparent reason... Where to investigate?

WIN10, claymore10, blockchain drivers, 3x rx570, 1x rx460.

Exactly. Plus, it is really hard to get it without subscribing to yet another forum. If anyone has one, can I please get it, because it would help a lot even if I reduced the fan on the rx460.

-tt not working properly. I have cards that produce very different amounts of heat, and turn their fans seemingly without any logic. I even have a RX460 that has 32°C and 90% fan. Anything I could do about it? Setting fan speed doesn't work either, not from claymore bat file nor from wattman.

One short question:
If I want to change my OC values, must I restart the miner, or is it somehow possible to do it while it is mining?

Man, you are so usefull around here:)
If I understand "crossfire" right, it is when two or more applications claim control over the card. It must have been the case here, because I had to manually rise the memory clock in Wattman, and the card started showing ~28Mh. Do you know how to repair this? - How to tell wattman to release control:P

Two of my rx570's have Elpida, and one has Hynx ram. I only mine ETH so far and don't plan to go dual until I feel I know what I'm doing.

I got my dummy plug yesterday and started overclocking. While at it, I installed the blockchain driver, instead of previously installed 17.7.1.

Is it normal that fans run very loud now (even at stock clock speeds), while they were reasonably silent before?

Another thing - one of the cards doesn't want to be overclocked. They are 3x RX 570 + 1x RX460

-mclock 2000,2000,2000,0 -cclock 1120,1120,1120,0

The first card shows no increase in hashrate, second and third go to 28MH, and for the RX460, I have yet to find good clock values. Any sugestions?

Hi, thank you for your reply. The moment I went to bed, the problem occurred to me. The rig is in a room without ethernet installation, so it uses a Wifi dongle. I found out that the moment the graphic cards started working, they must have increased the emitted EM crap so much that the wifi became just too unstable.

So I ran down to the basement in the middle of the night with a 1m usb extension cable, and I am a happy miner ever since. Or at least until I saw today's ether price charts:)

Maybe my low hashrate has something to do with the fact that it is a headless rig, and I didn't receive the DVI dummy plug yet. Now the rx570 are giving ~24MH and the RX460 (I mistakenly wrote RX470 in my initial post) ~12MH. If I understand things right, once I plug in the dummy, the AMD drivers will load properly, and the 570s should get into the 28MH territory.
Or is there anything else I could do?

Hi guys,
Sorry if this ends up a totally noob question, but I just can grasp what's going on.
I started using Claymore's miner 10.0, mining only ethereum on ethermine.org.

The machine has 3x rx570 4gb and 1x rx470 4gb.

Everything was going fine, and it actually increased my average hashrate from 67Mh to 78Mh (reported around 83)

But then, all of a sudden, after 3 or 4 days of great use, the thing started lagging substantially. To the point of dropping connection and verry chopy hashrate chart in ethermine. A few times, I even had to hard reset the rig, because I couldn't access it via teamviewer. I tried mining with -ethi 4, and it kind of works, but hashrate is shit, and it still isn't no where near as stable as before on standard ethi setting.

What can I do to get my hashrates back?