Other Cryptocurrency

With T-Rex, the Miner batch files are pool specific, eg: ETH-nanopool.bat, where it needs to contain your wallet address, worker name, email address and x is default password (used to set pool payout settings after you've connected and got a few shares).

Code:

t-rex.exe -a ethash -o stratum+tcp://eth-eu1.nanopool.org:9999 -u 0x***rest of ETH wallet address***.workername/whatever@mail.com -p x 

 

The daily energy demand is a duck curve with more and more solar PV installs. During peak sunshine production, using that electricity locally is more beneficial to everyone than feeding back to the grid and get the grid to deal with it on top of all other solar productions.

The issue with fossil fuel produced electricity is only an issue during sharp incline on the duck curve for peak demand. During low demand, the electricity often comes from nuclear (as base level generation) or renewables (wind at night). Octopus Agile sometimes even pays people to use electricity because the grid is over supplied, due to uncontrollable nature of renewables. So matching usage to renewable generation is ideal use of renewable energy.


Last Sunday was not too sunny, but here is my usage graph, showing my mining helper program attempting to match usage to generation. (most notable 9:30 to 10:00 and 13:00 to 14:00)

 

Is that a Sunday lunch I can see cooking in the oven?

 

Haha, yes it is.

 

I've had similar things happen in windows, if I open some webpages or Teams for example. With T-Rex set to intensity -22, I see the power usage increase and thus temperature yet the hash rate stays the same. I can achieve a similar hash rate if I set intensity to -17 at a much reduced power draw & temperature.

 

Quick question, after some testing using t-rex I can get a comfortable 50 MH/s linked to nanopool. However the minimum payout is 0.2 ETH on nanopool which - based on 24 hr mining is like the best part of a year (unless i've miscalculated it).

Seems like to 'cash out' with daytime mining would take an age. What is peoples approach to this?

 

I'm waiting for a new case and so will be doing a full waterloop rebuild at that point. My new 3090 is without a home until that point, so I have created a franken rig of spare parts to allow a bit of a dabble in mining in the meantime.

Using Nicehash's NHOS on a USB drive, I have had it up and running quickly and its looking like I should be getting around £5/day after accounting for electricity costs at current crypto prices.

 

Ahh nicehash - got "hacked" when BTC was high, and repaid over the course of 2 years when BTC value was through the floor, scammers.

 

Is there a way to directly limit GPU power consumption in t-rex or is it just best to set a lower target hash rate or GPU temp. I've left the intensity on auto but guess that would be another way of limiting power with trial and error. Seems odd to have a GPU power output but no way of setting a max (given that's the primary cost associated with mining).

Edit: Seems that nvidia SMI will give me this ability but haven't yet tested myself.

 

MSI Afterburner is the one you're after, set it to user mode and have a play, you'll find ETH responds well to an overclock on memory, you can dial back the power little by little till you're happy with the efficiency..

 

Yep. 2 ways to limit GPU power:
- "nvidia-smi --power-limit=150" sets GPU power limit to 150w. Useful if you want to fine tune power limit according to solar production.
- MSI Afterbuner achieves the same thing using the power limit slider. But it only saves 5 profiles, enough for normal overclocking but not enough for fine tuning on the fly by a script.

Afterbuner also allows you to do overclocking. It's a feature locked not available on Geforce cards for nvsmi.

I've also found undocumented feature where you can apply Afterbuner profiles via calling Afterbuner in command line

Code:

"C:\Program Files (x86)\MSI Afterburner\MSIAfterburner.exe" -Profile4

 

Thanks both, useful info. I've already setup a webscrapper for reading my solar production (boo no API) but just need to do the stop/start of the mining along with power adjustment.

Edit: Just shortcut this by using MSI afterburner and seems I can get away with 50% power limit, +900Mhz on memory (at least over 5 min test) which makes the card near silent at approx 60C.

Draws around 110w (so probably 150ish for whole system) and generates 50-55 Mh/s. Even if I assume I pay for the electricity that clears plenty of profit a day.

Never did the numbers before but now I can see why there is such a run on gfx cards at the moment!

 

ETH nerf coming to the RTX 3080 Ti

 

Would be a shame if owners where to .. you know ... mine any of the hundreds of other coins available. That would surely piss off nvidia!

 

Considering there has been about 27 contradictory rumours regarding the 3080TI I wouldn't put too much stock into this particular one.

 

What's your earnings / day like @Gareth Halfacree ? Im quite liking BTC's good price.

Will be interesting to see what impact this has:

https://www.coindesk.com/ethereum-improvement-proposal-1559-london-hard-fork