lightfoot (OP)
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I fix broken miners. And make holes in teeth :-)
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August 17, 2021, 01:15:10 AM |
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Honest answer: No.
Longer answer: I think the T series units are the "binned" chips and parts from the Antminer world. They put the best chips after testing into the S series units, and put the more "oddball" series chips in a lower performance box that is underclocked, undervolted, and call it the "T" series. Likewise I think boards that have mediocre solder jobs and the like are put into the "T" bin, matched, and sold as units.
Thus with proper firmware a T17+ could hash at a higher than badged rate. However those chips may fail in use under conditions that an S series box won't. This is why I've been merrily chasing chip failures on the T17's, sure you can replace a chip but another one is not quite so far behind.
Antminers are not quite the um.... highest quality things I have worked on. They blow up easily, solder isn't that great, and the difference between peak chip temp and the point where the chips fall off the board is not a whole lot of C. The cases are good, and the controllers are mostly good.
Another thing to watch is the earlier T17's and T15's used clips to hold the boards to the power supply rail while the later ones used real screws. Given the current draw on these boards I think the clips and loose screws could explain a number of burned top boards. Go for the screws.
If you're going to get one I'd recommend you do new (because everyone who buys one will run it with nuts firmware till it starts dropping boards, then sell it as "used") and run it with the supplied firmware (which is probably warrantied to work as long as the warranty lasts). Or run it with faster firmware, then sell it on Ebay when it starts tossing errors (just disclose it, pls).
Sorry, been busy for a bit here, will post some more observations next week including some pics of boards that had a bit of a.... shipping failure. :-)
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