Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[TheRider]

I have hi-end mainboard (Z87) with 7 PCI-E slots.
I can't use more than 6 videocards on it.
Theres's a lack of PCI-E lines.

Z87 supports up to 8 PCI-E lanes. Check the spec here http://ark.intel.com/products/75013.

But in your case, there could have been a limitation in the motherboard itself in how it assigns resources to the various devices on it.

PCI-e Express 1X to 3 Port 1X card? - pointless, same reason.

I've read forum posts where it was possible to use the PCI-e Express 1X to 3 Port 1X card to run 8 GPUs on a 6 PIC-E slot motherboard. Search the Ethereum forum to see for yourself.

More than 6 - only on X79, X99 etc...

Any chipset that supports 8 lanes can theoretically support more than 6 GPUs. MSI Z97 Gaming 5 board can run 7 GPUs using its 7 PCI-E slots (as documented by Cryptomined on his YouTube channel), but people have found that it's generally not worth the effort. It's wise to save time and effort by running 6 cards on motherboards without too many bells and whistles.

[1714469096]

1714469096

[1714469096]

1714469096

[1714469096]

1714469096

[anticlimax]

v9.1 crashes using anything above -i 3 with my furies, where as v9.0 was stable -i 5 with the same settings?

Can you give a few more details on your setup?  I ran 6 Fury Nitros on -i 6 with v9.0 rock solid (15.18 drivers).  I had tons of trouble when I went to v9.1, but I also updated my drivers to 16.12 at the same time so I haven't been able to pin-point the exact cause.  I'm rolling the drivers back now to test v9.1 on 15.12 and 15.18.

I'm using 16.9.2 with a minor undervolt, -10 power limit, 1050/500.
Seems to crash at anything above I 3. Strangely enough, the same settings seems to work on my gaming PC with furies.
The mining rig has a 1300w evga g2 with roughly a 800w-900w load. My kill a watt died on me, so I'm not 100% sure
I assume the psu isnt the issue, even with the power spikes.

[mamboOo]

do u guys saw an increase in zec earnings after 24 hours? I'm getting the exact same amount. Maybe we should focus in power efficiency instead of hashing speed.  

1
That's the way I see it also.

[forzendiablo]

9.1 changes nothing than fee on SSL.

so go for SSL sites and you have more money

[majorlee]

when using dwarfpool for ZEC mining

how important is that port number for the difficulty/shares?

when i change it to say like 3334 instead of 3333 i seem to get errors from the client

i have 4 rigs one around 250, 480, 900 & 1.1k/hs

want to get the best out of them so should i do my best to set the right port number for the size of the rig?




ohhh.... good to be back mining again after a long pause! roll of a super cold winter lol

[mamedesign]

Can you guys help me. I have a problem with the miner. Yesterday my Zec total speed is 80-90H/s. When I restarted the PC it now becomes 12H/s.
How can I get back to 90H/s?

GPU: r7 260x -
I already tried v9.0, v9.1, v8.

use your intensity 2 or 3 or 4.

[TheRider]

when using dwarfpool for ZEC mining

how important is that port number for the difficulty/shares?

when i change it to say like 3334 instead of 3333 i seem to get errors from the client

i have 4 rigs one around 250, 480, 900 & 1.1k/hs

want to get the best out of them so should i do my best to set the right port number for the size of the rig?

Dwarfpool's vardiff (port 3333) works well. It adjusts the difficulty so that each worker is submitting approximately 200 shares per hour +/-10%.

Unless you have a more specific reason to prefer static difficulty, I'd suggest sticking with 3333 and forgetting about it.

[xeridea]

SSL was implemented long time ago for mining already but was removed again due to the increased network lag.

Lags can only create a pool if it spends a lot of time to encrypt/decrypt data, am I correct?
SSL connection is based on same sockets and it takes almost zero time on client side to encrypt/decrypt 1Kb of data.
I'm curious about server load, is it too expensive to use encrypted connections for you?

Google is a fan of SSL on every site, if it needs it or not, and they care vary much about speed of the internet.  If there was a speed issue, it may be different.  SSL connection adds a tiny delay to the initial connection, and after that it's negligible.

lol. fuck, this "delay" thingy is a total crap. I'm coming out of the heavily used encrypted pipe (being aes-128-ed on a 30$ wrt router;) with no delays whatsoever so why would I fucking care about few more processed BYTES on my end??? and in regard to the pool side - just watch and see and act accordingly.
also it seems sgminer-gm is improving   

That is what I am saying, people blow it out of proportion. Initial connection SSL adds ~100ms for the handshake, but then after that it adds ~0.0000000000001ms per request, since encrypting like a 200 byte packet takes virtually no time, and is probably less than the packet size anyway, so essentially it adds 0 latency. Maybe it would matter on a 56K connection. My rejected rate on 3 different rigs is 0.08%, same as without SSL IIRC, and pool shows 0 stale.

Many sites use SSL, including all google sites, and any shopping site, or generally whenever you login to anything. There may be hundreds of kilobytes, or even megabytes to load a page, and everything is still really fast.

[majorlee]

when using dwarfpool for ZEC mining

how important is that port number for the difficulty/shares?

when i change it to say like 3334 instead of 3333 i seem to get errors from the client

i have 4 rigs one around 250, 480, 900 & 1.1k/hs

want to get the best out of them so should i do my best to set the right port number for the size of the rig?

Dwarfpool's vardiff (port 3333) works well. It adjusts the difficulty so that each worker is submitting approximately 200 shares per hour +/-10%.

Unless you have a more specific reason to prefer static difficulty, I'd suggest sticking with 3333 and forgetting about it.

nice, thanks for explaining

[QuintLeo]

i heard the 8 gig cards usually have a better quality of ram when it comes to overclocking.

 8 GB cards USUALLY have 8000 Mhz RAM - 4GB cards usually have 6600 or 7000.

[QuintLeo]

You don't make based on the pool lmao except that you may not make based on the pool honesty. Coin mine and flypool are stealing shares plus a 1% plus of rejected shares.

If you're seeing 1% rejected shares on flypool, you have an issue with your ISP or with your mining rig(s).

 I've NEVER seen that high a rejection rate on that pool (exception for my testing of Claymore v9 above, but that's an obvious issue with the software itself).
 I normally get a little less than 1/2% rejects on any of my rigs that are running v8 (the single rig running v9.1 hasn't been running long enough to judge yet).

[QuintLeo]

OK, a bit more update.

 Tried v9.1 on the same rig I did the earlier testing - same results as for v9.0

 Tried 16.9.2 drivers - same results on each of v8 v9 and v9.1 as under 15.12 drivers - forget 16.12.1 the drivers are bad for mining.

 Tried one of my "just arrived" RX 470 cards on that rig - v8 v9 and v9.1 ALL went into "crash as soon as the number of cards was reported" mode.

 Gave up on that rig and moved it back to the HD 7870 and v8.


 Built (rebuilt to be picky) a new rig with 1 x RX 470.

 Catalyst 16.9.2, same Seasonic PS, 4GB RAM.

 v8 works. v9 still flakes out. v9.1 works

 One thing I notice in GPU-Z - memory use on the card is in excess of 2 GB, which makes me believe that part of the issues with the original testing rig was "lack of system RAM".

 Add second card, get driver issues sorted out so both are working correctly.

 v8 works. v9 still flakes out. v9.1 works


 I don't know what changed between v9 and v9.1 but it appears that v9.1 fixed SOME sort of issue, and moving to a machine with 4GB of RAM fixed another (possibly related) issue.


 Up side - v9.1 on the new rig DOES show ballpark 10% better hashrate than v8

[Justicemaxx]

I'm sorry, maybe something was misunderstood, but why 9.1 version still shows 90 seconds of work for the Creator? Like in the description clearly that it was 72 seconds. Real time is not measured, but was curious to measure. Another such great moment, I have not written backup pools, at some point my pool has stopped responding, and what do you think? The manner worked for the Creator for about an hour continuously! ) Very cool of course, I understand, but it's like that then you need to consider, but then after that, the miner operate without switching on Creator a couple of days.

[enricosofie]

Hi,

I have the following options in the config-file
But the fan speed stays at 20%
What am I doing wrong?

-tt 75
-powlim 50
-fanmin 70
-fanmax 80

GPU's are RX480's

Thanks for the help

regards,
Eric

[ober]

Again: if someone thinks that encrypted connection is a bad idea, do not use it, miner allows you to do it, I doubt you will ever notice 0.5% difference in your income. I'm not going to remove plain connection, restrict pools, increase fees, etc, there is not any conspiracy theory or evil plan. It seems some people have too rich fantasy.
In my opinion, ability to encrypt connection as an option is a good feature (and I'd like to support it a bit by reducing devfee), so I'm not going to remove it right now, though if I see that noone uses it I can remove it in future. Actually, I think about adding this feature to dual miner too, but now I'm not sure because here I've read a lot of ideas about bad sides of encryption, which looks really strange for me. Don't forget you mine cryptocurrencies, they all consist of pure encryption

Please, don't forget about some users are happy to have SSL connection. At least, they don't want by any reason that anyone between them and the pool could read the data transferred. They don't want anybody expect, that it is mining. They don't want anybody to steal their wallet number and so on. So, an ability to use SSL is generally good.

Guess what - SSL won't help you for that. Whoever captures your traffic he will know you are mining. Just you address and number of submitted shares will be concealed to certain degree. Shares you send could be recognized

They don't want anybody to steal their wallet number and so on. So, an ability to use SSL is generally good.

SSL helps here against traffic capture. You will reveal your account number by other means. Your wallet can be stolen by software running in your computer, not by capturing your miner's traffic.

[thieungu]

I'm sorry, maybe something was misunderstood, but why 9.1 version still shows 90 seconds of work for the Creator? Like in the description clearly that it was 72 seconds. Real time is not measured, but was curious to measure. Another such great moment, I have not written backup pools, at some point my pool has stopped responding, and what do you think? The manner worked for the Creator for about an hour continuously! ) Very cool of course, I understand, but it's like that then you need to consider, but then after that, the miner operate without switching on Creator a couple of days.

- reduced devfee, it's 2% now (72sec instead of 90sec) if you use secure SSL/TLS connection, currently Flypool and Suprnova pools support encrypted connections, see Readme for samples.

[marcus_v]

verson 9 is useless it power down my computer so it is time to move to something else since it is not profitable with version 8

[osnwt]

Don't use nicehach pool for mining zcash.
I have 25% more profit in dwarfpool.

I used NiceHash when I had no time/wish to watch Zcash prices. Since its orders were paid for current Equihash (ZEC/ZCL) prices depending on the market, NiceHash paid in BTC more comparing to mining a particular currency (but took 3% of that in BTC before payment, that's a lot). Its customers watched for better algo, switched to it and paid more in BTC.

I actually hopped between CoinMine and NiceHash because when the payment rate @ NiceHash was high, I mined there and received BTC. When the payment rate was low, I mined @ CoinMine to exchange Zcash later.

I tried and stopped using automatic pools like MiningPoolHub because it does not give you exactly what you expect. It selects an algo for its instant profitability (network difficulty, current price, etc). But after you mine it, it matures, moved to an exchange, things may be quite different. So I preferred NiceHash when it paid well instantly, and CoinMine, when price was low (to sell when it goes high).

Now I left CoinMine, one of reasons is its PPLNS system since Dec 8th. It works bad in such scenario. Never liked PPLNS and always used DwarfPool for ETH. So CoinMine lost my hash rate instead of keeping it, since as said, PPLNS is not good for hoppers, and there is a reason for it as explained above.

I like DwarfPool due to its full stats and ability to talk to operator if you have questions. Every share is logged, so any issue always can be fixed by recalculation. It is small (because it did not enter Zcash race in time). It provided 50% to 30% of Ethereum mining, but only 2-3% of Zcash at the moment. The more people will use it, the less will be variance in payments.

Of course, people already shout here about missing SSL - I've heard it is in progress on DwarfPool. I use it just because I like it as it is.

[osnwt]

verson 9 is useless it power down my computer so it is time to move to something else since it is not profitable with version 8

That's exactly why few people wrote here that hash rate race is not good if no explicit reasons for that since it does not increase profit but decreases it due to power bills. No one listened, now it is the result: more power, more expensive PSU setup, etc. And not more profit :-)

Many sites use SSL, including all google sites, and any shopping site, or generally whenever you login to anything. There may be hundreds of kilobytes, or even megabytes to load a page, and everything is still really fast.

Don't mix a warm with a soft (mining with shopping). When ETH dual miner was created, Claymore changed its default intensity from 16 to 8 to save few ms only. These ms cost some stale shares since after share is calculated, it should be delivered in time. Using -i 16 created larger jobs from CPU to GPU which can't be stopped until finished, and even those ms were important. Now we talk about Zcash, it has slower block time, but solutions itself are huge comparing to ETH ones (around 1300 bytes vs 50 for ETH), and all this now is encrypted in addition. So you have exactly the same case, but for some reason no one is concerned with it like it was for ETH.

Someone tells no one will see their addresses via SSL. If you are paranoid, you should not use exchange addresses. Install zcashd, mine to t-addr and move all to z-addr, send to an exchange t-addr, and no one will know who you are. No one except you will even know from what z-address funds came to the exchange. This is what Zcash was created for. You do not need SSL for that at all. Use right tools for particular task. I understand that 90% people here are home miners, they never read about Zcash: what is it and how it works. Still, it provides 100% security if you are paranoid and use it right. Without any encryption or closed source. That is the brilliant part of Zcash that is undervalued yet.

[KrokoTill]

I like DwarfPool due to its full stats and ability to talk to operator if you have questions. Every share is logged, so any issue always can be fixed by recalculation. It is small (because it did not enter Zcash race in time). It provided 50% to 30% of Ethereum mining, but only 2-3% of Zcash at the moment. The more people will use it, the less will be variance in payments.

How do you talk to Dwarf operator? I have seen there only e-mail addresses for contact and they have never answered to my mails..