I haven't mined RVN in a while, so I can't comment on that, but I've found WTM's estimates to be well below what I actually make with my miners on Grin. For example, I made 23.43 Grin over the last 7 days with 6xP106 + 2x2060 + 2070 + 2x1080 mining Grin29 and 2080Ti + 1080Ti mining Grin31 (and probably 20 hours of that time, I was using one of the 2060s for gaming, so it wasn't actually mining). According to WTM, I should have made 18.96 Grin over that period. I haven't found this sort of difference to be unusual so far. Now, it could be because I only look at 7-day numbers (Profitability 7-day / Difficulty Avg 7-day) on WTM and they're just way off, but my results have been higher than WTM projections pretty consistently for the 3-4 months I've been mining on Luxor. That wasn't necessarily the case on F2pool, Sparkpool or Grinmint before that, but I assume that's due to a combination of where I live (lowest rejects and highest poolside G/s for me on Luxor) and the difference in fees (F2pool being 2nd best for me, but 2% more fees).

As to the difficulty, yeah it's not quite as simple, but not too bad once you figure it out.

That is not my understanding from the whitepaper, but I'm no technical expert. All I know is my hashrate is lower when my memory clock is lower and the same is true of the core clock.

EVGA Black 2080Ti: +180/+600/75%PL for 1.96 G/s. It will actually go above 2.2 G/s at 85%PL on its own, but not in the 6-card mixed 2080Ti/2070/1080Ti/1080 rig with a cheap CPU it is currently running in.

EVGA XC 1080Ti: +100/+500/75%PL for 1.33 G/s (BUT, it was running at 1.56 G/s and 210W PL when I had it on a 4-card rig on SMOS).

PNY Blower style 1080Ti: +100/+500/210W PL at 1.50 G/s on SMOS

Absolutely agree and that constant fluctuation is why I diversified gpu purchases over time. I personally have everything from 2080Ti down to RX470 and most every card in between. But since the prior poster didn't provide any info, I was just putting the info out there for others who might be interested in adding it to their spreadsheets.

He's right if you just look at it today. I only have one Vega56, but after adjusting the hashrate for my miner's fee and the pool fee, I get a net 2094 h/s on Monero for 185W at the wall (it averages a little over 2160 h/s before accounting for fees) . That's currently $1.44/day - (185W/1000*24*$0.10) = $0.99/day net profit. Of course, it takes a little more knowledge and effort to set up a Vega56 than an Nvidia card and a couple months ago it was barely breaking even while a lot of NVidia cards were still making decent profits (e.g. At one point, my GTX 1060s were making $0.25+ per day on Grin while my Vega 56 was making $0.01 on Monero), but at least that's some info to plug into a spreadsheet for people to analyze on their own.

Okay. In that case, if you have another power supply, I'd try it because the power usage on Grin jumps around alot, but I would think it would run a little bit before that caused an issue. Hopefully you can get it figured out.

Are you using SMOS? Have you tested it without the 1080ti? I had this issue in February when I tried to run a rig with two 20-series cards (2080ti + 2070) and four 10-series cards (1080ti x2 + 1080 x2) on SMOS. I tried every configuration I could come up with and every time a 20-series card was mixed with a 10-series card, the fan on one or more of them wouldn't work right and that(those) card(s) would crash. I had to split the rig, which added 40-50W, but back then it was still more profitable in my situation to run the 1080s on Grin31 instead of Grin29. When you consider the extra electricity, it is now more profitable for me to run all the cards on one rig using Windows and just have the 2070 and two 1080s mining Grin29. I have no real technical expertise here and no idea if this is just an SMOS issue or more broadly a Linux issue.

I have the logfile for the last couple days. Here's a screenshot of where the most recent issue happened (Jun 19 03:08:13 to 03:19:20):
https://imgur.com/a/fkGx3hh

I can send you the rest of the logfile if you need...what's the best way to get it to you?

I've run into this issue again, where my Z9 Mini is disconnecting from the pool (presumably to dev fee mine), then won't connect again for several hours or until I restart it. I thought it was just an issue with Prohashing's pool since I wasn't entirely sure I'd seen it at other pools. But recently when I've mined on Slushpool, I'm getting the same issue. Again, I have two Z9 Minis - one works fine at 750Mhz without your firmware, so I only use your firmware on the other, which has to run one hashboard at lower clocks. I switched both over to Slushpool at the same time and the one without your firmware has been connected the whole time, while the one running your firmware has disconnected and submitted no shares to my pool for 2+ hours at least 3 times in the last week - in fact, one of the times was over 6 hours before I realized.

Screenshot of my miner status page showing an example of the latest issue:
https://imgur.com/a/rOXBkde

And my support id:
****

Can you look into this?

I have two Z9 Minis running - one with your firmware and one without. This issue only occurs on the one with your firmware. I don't use AwesomeMiner or any other software to monitor, track, etc. It happens when I am mining on prohashing and I could be mistaken, but I thought at least once when I was mining on flypool. I never tried to see where it was actually mining or any other info; I just restarted and moved on. It hasn't been a big enough deal to date for me to worry about - just thought it might be useful info for you if others run into the same issue. Until it happened while I was mining flypool, I assumed it was probably issue on Prohashing's side. And since I'm not 100% sure it did occur mining flypool, I'm still not ruling out that its a Prohashing issue.

Just a data point regarding this: I've noticed several occasions where my Mini has continued to mine for a few hours, but is not mining my pool. I know it has happened with Prohashing multiple times, and I think at least once on Flypool. To the best of my knowledge, its been maybe 5-10 times since 2.1d came out, but I've never spent time on it or looked into any further - I've just restarted and it fixes itself (though that is actually adding some dev mining on restart).

Echoing what others have said, the latest Bminer is showing a higher hashrate on Grin31, but the pool is showing a lower hashrate than with 15.1.0. This is using both 1080Ti's and 1080's on Luxor. Combined hashrate was 4.37 on Bminer and 4.19 on Luxor with 15.1.0. Combined hashrate of 4.56 on Bminer, but 4.02 on Luxor using 15.2.0 over a 24 hour perioed. No noticeable difference in rejected/stale shares, but fidelity was lower. I already switched back to 15.1.0.

I've only tested BTM using v20.0, but my 2070 gets 9030 h/s at stock settings (1665core/6800mem/100%power on my card). With power set to 80%, the hashrate drops to about 8350 h/s. I was happy with that, so haven't played around with lots of settings.

I've been running Bminer v15.0 for a few days now. Some users were reporting stability issues, and I had some early with my prior overclocks, but running with stock core/memory and slight undervolt on SMOS, I've only had two restarts in a little over 3 days between two rigs. One rig has 2x 1080Ti (0/0/225W) + 2x 1080 (0/0/155W) and gets a combined 4.19gps poolside (miner reports 4.38gps) on C31 using Luxor, with less than 0.2% rejects. I haven't tested it on any other pools. If you're just looking at 1080Tis, mine report ~1.26 poolside (1.32gps on the miner). I've also got a 2080Ti running at 1.84gps poolside (miner reports 1.91gps) on C31. The new NBMiner looks interesting and I'd like to test it, but I have testing fatigue, so it'll probably be a few days before I get around to it.

Mining C31 with version 15.0.0 for 20 hours on SMOS:
Rig 1= 1080 x2 (0/0/150W) + 1080Ti x2 (0/0/225W) with one crash and average 4.34gps in miner. Pool hashrate 4.1gps.
Rig 2= 2080Ti x1 (0/0/225W) with no crashes and average 1.91gps in miner. Pool hashrate 1.83gps.


Mining C29 with version 14.3.0 for 24+ hours on Windows 10:
One rig a single 2070 (75/750/80%) with no crashes and average 6.17gps in miner. Pool hashrate 5.97gps.

My 2070 would not run C31 on SMOS due to insufficient memory.


Prior to dropping my overclocks, I had stability issues on C31. Also, Bminer can't read the device status for the 2070 on Windows. (SMOS and Gminer on Windows both read it fine, so its not an issue with the card itself).

This took a wrong turn. I apologize because my bolded point (above) came across wrong. My intent was that instead of ME spewing numbers about, I'd just encourage you to test on your own - we may have different results based on where we live or our equipment, etc. I'm not blaming anyone for anything. I simply have observed different results than yours, those results have been consistent over several different versions of different miners, and those results match up with what others I've talked to have reported. Those results are that: 1) Bminer is significantly faster than Gminer on the poolside (especially, but not limited to C31); and 2) Gminer's reported hashrate is consistently higher than the pool reports, while Bminer's is the opposite. I've found this true on multiple pools, so I don't think its just an issue with the pool.

Having said all of that, I've found Bminer's latest version to be less stable and not underreporting hashrate compared to the pool for C29. For C31, it's rocking along on SMOS. Right now, I'm mostly mining C31 and get 1.91gps on my 2080Ti (0/0/225W), 1.3gps on each 1080Ti(0/0/225W), 0.87gps on each 1080(0/0/150W). I also get about 18.1gps using v 14.3.1 on my P106 x6(200/1500/80W) rig on C29.

Firstly, I made a mistake in my prior post. I intended to say Bminer showed 6.0 gps (not 5.6gps), but poolside, I got 6.1 gps. You mentioned in your prior post that you were getting a solid 7.1 gps per card, but this post shows you're getting 6.5 gps poolside - that was my whole point. Gminer shows significantly higher hashrates than the pool, while other miners do not and/or it is less pronounced.


Rather than spewing numbers about, I'd encourage you to continue testing. I've tested Luxor, F2pool, sparkpool, and Grinmint using Minerbabe's Kbminer, Bminer, Gminer, and Grinminer on Linux (mostly SMOS) plus Bminer, Gminer, and Grinpro on Windows 10. I've done some with a P106 x6 rig + 2 1080s, 2 1080 Ti's, a 2070, and a 2080 Ti in various configurations. (Side note: Every time I add 20xx cards to a rig with 10xx cards on SMOS, one 10xx card fan will stop working correctly, so I have to separate them). I'm located in the southeast US, and in every test I've conducted, Luxor has shown lower rejects and higher reported hashrates than F2pool, sparkpool, on grinmint (in that order). Additionally, Gminer has always shown a higher hashrate than reported poolside, and Bminer has always shown a lower or equal hashrate to that reported poolside.

If you are only going to use Windows, I've found that, for my circumstances on the pools I've tried and the cards I have, Bminer 14.0+ shows better results than Gminer 1.31.

Did you confirm your hashrate poolside? I ran Gminer 1.3.1 for 24 hours on a 2070 and it showed 6.2-6.3 the whole time on the miner, but my 24hr pool hashrate was 5.6 for that period. Then I tried it on Bminer 14.3.1 and it showed 5.7 on the miner, but 6.1 at the pool. Both tests were ~24 hour periods, so it seems like its a legit result. Also, this matches what I observed a couple weeks ago when comparing Bminer vs Gminer using 1080s and 1080Ti's - the pool hashrate always was lower than Gminer reported, while the pool hashrate was always higher than what Bminer reported. I've read some others who said the same thing. All my testing was using Windows 10 and at Luxor for the 2070, but F2pool for the 1080s and 1080Ti's.

Anyone running SMOS have problems with mixing 20xx cards with 10xx cards? I moved two 1080Ti's to their own rig after Bminer 14.3.0 came out and they ran fine until I added a 2080Ti to the rig yesterday. When I did that, the card listed last on SMOS (device 2 in this case) stopped working correctly and the card would overheat. When I removed that card, the card that was now listed last on SMOS (device 1 in this case) stopped working correctly. I tried different USB cables, risers, power supply, motherboard and it is always the same: the 1080Ti fans work fine until I add the 2080Ti, then one stops working correctly. So I tested a 2070 with two 1080s and the same exact thing happened - the fan won't work correctly on the card listed last on SMOS any time a 20xx card is added to the rig. I was assuming it was an issue with SMOS, but all my testing was with Bminer 14.3.1 on the latest SMOS.

As far as I can tell, the Revenue tab is just not being used. All it shows on my dashboard is 0's, except for the Network Difficulty. For me, efficiency has ranged from 99.83% to 100%, and I rarely see rejected shares on Bminer - On my P106Rig, Bminer shows 3286 accepted / 19 rejected. The Luxor reported efficiency appears to actually be 15-minute efficiency or something similar.