S17+ 70/73 some basic questions.

[edwardtherad]

Hey everyone

So I spent a while looking into mining and finally pulled the trigger. I have a setup in the US that allows for relatively cheap electricity, I have a home with many floors and a room with 2x 240 breakers/outlets.

I actually have an electrician doing up the room right now, I also bought lots of sound proofing material (I am experienced in building bass traps/acoustics) and my house is brick (I bought a 70T and a 73T antminer s17+) and ensured the room they will be in has proper vent and what not.

All in all I am trying my best not to screw this up and so I guess my only question is there anything else I am missing? I figured two 240 lines should be enough but in the end if I am doing something glaringly wrong I can always sell the miners, I got a decent price from a homie in Shanghai. The room is brick, it is cold and will remain so with proper vent, I have two 240 outlets and ya, flame away haha. I apologize if this is silly. Cheers!

_ed

[NotFuzzyWarm]

240v outlets is a good start but main question that remains is how much power are they good for? Remember, today's miners all pull over 3kw each.

[philipma1957]

240v outlets is a good start but main question that remains is how much power are they good for? Remember, today's miners all pull over 3kw each.

Two outlets each on a 20amp circuit should be okay.

Two outlets sharing a 30 amp circuit borderline
Two outlets sharing a 20amp circuit is a fail.

A 70th s17 is about 2900-3100 watts or 12-13 amps

two are 24-26 amps so they wont be able to share a 20amp and are borderline for a 30 amp circuit.

they do about 23000 to 25000 btus of heat.

[potificate]

240v outlets is a good start but main question that remains is how much power are they good for? Remember, today's miners all pull over 3kw each.

Two outlets each on a 20amp circuit should be okay.

Two outlets sharing a 30 amp circuit borderline
Two outlets sharing a 20amp circuit is a fail.

A 70th s17 is about 2900-3100 watts or 12-13 amps

two are 24-26 amps so they wont be able to share a 20amp and are borderline for a 30 amp circuit.

they do about 23000 to 25000 btus of heat.

So, it's okay to have one ASIC's dual-corded PSU run on two separate breakers? I was wondering about this myself the other day. What happens if -- for whatever reason -- only one of the circuits trip? Does the whole ASIC shut down or could something worse happen?

[NotFuzzyWarm]

NEVER use 2 different circuits to power the 2-inlet PSU's!
In theory if you lose 1 line the miner should simply shut down but I would not bet on that happening before the PSU is damaged...

[mikeywith]

In theory if you lose 1 line the miner should simply shut down but I would not bet on that happening before the PSU is damaged...

I have nowhere near the experience you do when it comes to electricity and all that, but I think that this will work just fine, I "unintentionally" had a few miners hooked up this way and nothing went wrong, in fact, the moment the PSU loses one of the two inputs it will instantly shutdown, it will only keep the PSU fan spinning if the other input is plugged in.

I believe as long as the input voltage is the same (which should be in OP's case) it should work just fine.

I think the APW9 PSU is just two independent PSUs combined, however, since this is your field, check it out https://www.zeusbtc.com/manuals/repair-guide/Antminer-APW9-power-supply-repair-guide.pdf, you might be able to confirm if there is an actual risk supplying it from two different circuits.