Good thing there's someone here to translate without condescension.

Pipe the output to a log file so you can see what errors are popping up that would cause a re-target.

Not sure what pool you're using but if it's not ASICBoost-enabled your speed will be limited to ~575MHz max due to USB traffic.

Is it trying to run faster than 550 and then throttling down? Or does it initially target to 550 no matter what you put in the command line? Because that could be an issue with a config file overriding command line specs.

If upping the voltage makes it worse, it's probably your hub sucks.

Means to look in the current directory. Two dots means up one directory. Without that, the system will look for a global command/program rather than a local one.

419mining in the US, Eyeboot in Hong Kong and bitshopper.de in Germany will be stocking the next batch.

When you get it depends on the seller, but the next batch starts shipping from my factory next week.

If 2Pacs are dropping out, try adjusting the core voltage up slightly. More voltage tends to mean more stability - but also more heat, so adjust only a little bit at a time.

If I had a 10% failure rate inside 2 years for gear I built, I'd probably quit the business. 10% failures is unacceptable. 1% failures is already irritating.

Y'all almost make me wish I had enough money to build my own solar array and circle back around to hosting. My facility (8.9c flat rate, no contract, free VPN and the like) officially turned off on October 1.

And safer. I've replaced 15A outlets in hosting that were drawing maybe 8A continuous and started to melt. Asking a cable and socket to run near 100% all day for multiple years isn't very smart. A mechanically solid connection like screw terminals is one thing but a friction fit like a blade/socket is different.

Actually, my opinion, the whole extreme density concept miners are built with now is stupid. I get that it allows them to shave off some overhead percentage by increasing the total cost of the miner that is chips, but the customer is demonstrably seeing none of that savings right now. Floorspace and shelfspace cost is almost nothing compared to operating cost, specifically power and maintenance and exhaust. With extreme density comes greater need for maintenance (and greater chance of fatigue and failure and fire) and tighter ventilation (and intake filtering) requirements for the meager savings of a half square foot per machine.

The problem isn't the noise. The problem is how much current the one power cable and its connections can handle safely. Not just that but how much they can handle indefinitely, since the machines rolling out now will need upwards of two years service life just to break even.

And if I was doing it I wouldn't build a machine requiring a 3300W PSU.

Do the *17 miners have four boards or three? An odd number of boards would weigh against an internally dual supply.

iankasyp, yes it's normal. The idle power at stock voltage is typically around 1.5W but can increase if the stick warms up, as these chips have a marked positive temperature coefficient.

rickyt06, the cgminer-gekko is an ancient (~2015) version of the driver originally written for the Compac and no longer maintained. If you follow the download and build instructions from the first post of this thread you'll get an updated driver that has improved support for the Compac plus integrated support for all further products - 2Pac and NewPac, Terminus R808 and R606, in standard GekkoScience and bitshopper-branded versions.

Opening up the doors for the masses is good for decentralization and adoption, which is good for price stability, fees and the overall transactional economy.

Guess they figure they can eat the 3% fee, what with their 150% markup on gear.

Eyeboot ships from Hong Kong which is sorta in that corner of the globe. MineFarmBuy and 419mining both will ship international from USA. ASICPuppy might also but I don't know for sure.

T is Target, or the speed it's trying to run at
P is Plateau or the maximum effective speed cgminer's seen out of it
The percentage is what percent of target speed it's running. 100% is good.

Whatever speed you run it at, cgminer is probably going to round to the nearest 6.25MHz because that's how the internal clock multiplier in the chips works. So 175 gets 175, but 170 would get either 168.75 or 175; I forget if it rounds down or up.

As for hashrate, each stick should level out to MHz*0.11 which means 175 should see 19.25GH per stick and "170" would see about 18.6GH

74.5GH across four sticks averages out to effectively 169.3MHz per stick so if you were shooting for 170 it looks like you got it.

When you first plug in a stick, the exact hashrate is meaningless because it's estimating off the timing of the shares returned, which appear randomly. You want to give it a few minutes to settle into an average.

The talk of mining lightbulbs and all that was always a joke. Miners work on economies of scale, even at an individual machine level. The higher percentage of device cost is ASICs, the more viable it's going to be. The support circuitry to handle a single chip isn't much more than what's required to handle ten chips, so it makes no economic sense to drop single chips with full support circuitry into a dozen different gadgets instead of keeping them in one box at half the cost.

If you've already downloaded it to the 3b+, just copy the folder across and recompile.

Also, depending on what your speed settings are, it's difficult to run more than 6 sticks on a Gekko hub anyway because the D/1 port power also powers the hub electronics so if you pull too much there the hub's brain will start flaking out. Something like 400MHz on near-stock voltage should be possible but it depends on the chips.