Topic: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux) - page 1279. (Read 6590757 times)

Actually... Why not just mine on Dwarfpool anyway? Although I think someone mentioned earlier about lower hashrate? Maybe that's the reason? I only went with Ethermine because it was the first pool I found out about.

Maybe dram timings are not good in your 280x biosses. I got 20.7 Mhz @ 1050/1500 with my 280x (refence cards, with or without stilt biosses)
It's not heat related for the 280x ? If not, it's probably less performing dram modules (compare with gpu-z which dram do you have)

Your 7950 are working great. The only ones i got that work that well are msi ones; it's dram related

Already using 15.12 drivers and -etha 1
7950
ETH: GPU0 20.727 Mh/s, GPU1 20.744 Mh/s, GPU2 20.721 Mh/s, GPU3 20.428 Mh/s
280x
ETH: GPU0 19.186 Mh/s, GPU1 20.702 Mh/s, GPU2 18.711 Mh/s, GPU3 19.417 Mh/s, GPU
4 19.427 Mh/s

All gpu's clocked at 1100/1500

Actually... Why not just mine on Dwarfpool anyway? Although I think someone mentioned earlier about lower hashrate? Maybe that's the reason? I only went with Ethermine because it was the first pool I found out about.

This happens when you don't have 15.12 drivers.
Either upgrade to 15.12 or force the 280x to "slow card" mode (-etha 1)
280x is @ 15 Mhs with pre 15.12 and auto detection instead of 20 Mhs

Yeah, absolutely. Here's my config for just ethermine. Nothing "custom", just the proper link, and my wallet address. Just sub in your own address instead of mine, of course.


EthDcrMiner64.exe -epool us1.ethermine.org:4444 -ewal 0x70c06E09AE5A2b8ECa5863C68b725adadCefF5cb -epsw x

-------------------------------------------------------------------------------------------------------------------------------------------------------

I would really recommend mining both Decred and Ethereum. You don't sacrifice any speed for either, really. Here's my entire config for dual mining. Sign up for supernova pool for simplicity because it's already set up that way in my config maybe...

EthDcrMiner64.exe -epool us1.ethermine.org:4444 -ewal 0x70c06E09AE5A2b8ECa5863C68b725adadCefF5cb -epsw x -dpool stratum+tcp://dcr.suprnova.cc:2252 -dwal BitJunkie556.worker1 -dpsw x

Oh... And one thing I found useful. I couldn't get Decred to dual mine at first. I then realized that I had to put in my worker, EXACTLY as it said. That included the capitals on my main account name, as you can hopefully see above. "BitJunkie556.worker1", as opposed to "bitjunkie556.worker1"...

 I hope that helped and that you can get up and running.

@ Claymore curious as to why my 7950's are faster than my r9 280x?

I can't seem to mine on ethermine, can anyone mining on there share their configs with me? thank you!

Why GPUs numbering under Claymores Dual are differ from GPU-Z or MSI afterburner?

Hi citronick,

Thanks for the two links you provided in your two posts.  Much appreciated! 

Its simple really.

They will release the new software for nodes to update to and if they mine then wont update and POS will be delayed.  The guys at ETH put a difficulty bomb to make mining impossibility hard in the future so the majority will update or the network will freeze and kill the coin.  In crypto generally once 51% of the network decides to use a update then it becomes official, its like share holders making a vote in a publicly traded company.

I was researching this topic earlier this year and find this link best to explain POS/Casper and Life after POW.

http://ethereum.stackexchange.com/questions/3523/how-do-miners-profit-post-pos-if-at-all-how-will-new-miners-get-their-start-a?rq=1

You have a valid point there.  By the time they come out and a ginny pig spends $200 to find out if it will mine ETH and we get word of it, it's quite possible my 3,000 MH/s from 100 x MSI 390's will have mined approximately $10,000 worth of ETH at current difficulty, block time and price of ETH.

That's $10,000 towards a $34,000 to $35,000 investment.  That investment could be paid off in 4 months.

I'm an ignoramus as to how ETH works.  Any idea who or what determines when ETH changes from POW to POS?  Of course, I could research to find out for myself.  However, if someone knows the answer, I would appreciate the info.

WHATEVER you do, don't use Sapphire for mining... It seems like everyone and their brother, sister, and mother, are having issues mining with Sapphire cards...

I thought with my R9 270's (2 of them) ~36MH would be my max. I haven't seen it yet.

I'm getting about 25MH/s Ethereum, about 380MH/s on Decred. I can get about 26MH/s in Eth only, but it's worth it to mine decred alongside ethereum. Keep in mind, that's considerably overclocked. Stock on mine is 900-925 Core Clock, 1400 Mem clock. I have it at 1050Mhz Core, 1500mhz Memory.


My two cards together probably use about 350 watts. I would think a 295x2 would use at LEAST 500 watts. Make sure you have a hefty power supply.

As for your expected mining speed... It's hard to really say. Two r9 270's are definitely more powerful than a single 290. So if I'm getting ~26MH/s, I'd imagine you'd get closer to 40. Maybe 45MH/s with a heavy overclock. But again, the problem is that I keep hearing nothing but complaints about Sapphire for mining...

Could you perhaps go with two R9 290's, non-Sapphire?

I don't want to hate on Sapphire. I used to have a passively-cooled HD5450 that I ran pretty hard. I now use it in my HTPC build. I love the thing, even now. But when you hear nothing but problems about a certain manufacturer in this particular usage... I can't help but recommend against it. I remember a thread on the ethereum forum where a guy had like 6 Sapphire cards for mining. Multiple failed within the first couple weeks. Not a good sign...