Yes, that is what he gave me. He gave me 2 of those which has 2 outlets each leading to the 220V 30 AMP breaker. When he installed the 2 outlet sets (that have 2 outlets each), he said everything behind the outlets leading to the 30 AMP breaker is 10gauge.

So you are saying each set of 2 outlets (like the photo) should only be able to do 15 AMPS. He did say that top and bottom are on one outlet line to the 10gauge. so the next top and bottom one is its own wiring. Since I have 2 sets, each should handle 15 AMPS.

Would it be safer if I plugged ONE of the S16E cords to the top of one of the sets, and the OTHER cable into the other set.
The bottom outlet would of each set would handle an Antminer S9 each running in low power mode.

So each set would only be pulling 12 AMPS (S17E total is 12 AMPS, so I'm assuming each cord pulls 6 AMPS. Each Antminer S9 in low power mode will pull 6 or 7 amps i think)

One set is : top outlet and bottom outlet 15 AMPS.
X
+

I have 2 of them like this: in theory each top and bottom outlet is 15 AMPS capable?
X X
+ +

I'm going to plug in one cable to one X and the other cable to the other X in the S17E.
Each of the bottom outlets (+) will power 1 Antminer S9 at low power mode.

Am I making any sense? Lol.

Thanks for your assistance.

So what do you recommend? The S17E requires 220V, but are you advising me to use 10gauge power cords into the Antminer? Do they even make them that thick in 5-15P configuration plugs?

Thanks for the advice.

Also, if something shorts on the S17E, would all 30 AMPS of the breaker go there? Since I will have 2 Antminer S9's plugged in drawing about 6-7 amps each in low power mode unchanged hashrate.

I have a 220V box with 30 AMP breaker.

However, they lead to standard 5-15P outlets. The electrician ran 10 gauge wire to the breaker from the outlets he installed. The electrician said its ok, just don't plug 110V stuff on there.

Is it really safe to use the 5-15P cables as long as they are 15 AMP capable and 14 Gauge? Like these?

https://www.amazon.com/Tripp-Lite-Computer-IEC-320-C13-P007-006/dp/B0027JRMD0/

The cables say its for 120V BUT the specs indicate it can handle 15 AMPS with 14 gauge wiring inside.

I'm powering an S17E Antminer and @ 2880 Watts it might be pulling 13 AMPS total on both plugs, so I'm assuming each cable should only be pulling 6.5 or so AMPS?
So are the cables in the link above OK to use for the S17E? Remember, my circuit breaker is giving me 220V with a 30 AMP breaker.

I'm running 2 S9 Antminers now on it, but I'll be adding an S17E soon:

1 S17E normal mode  13 AMPS
2 S9 Antminers in Low Power mode. 6 + 6 AMPS (These are using the 14 gauge 15 AMP capable cables shown above)

I'm assuming it'll be OK for the S17E since the S9's been running for months with no downtime.

Doing the calculations, it should be close to the 80% rule. Pulling 25 AMPS altogether when the S17E comes in next week.

What do you guys think?

I like the idea of Nexo.

Anyone have any positive experiences?

My question is, if I place my BTC and lock it in withdrawing a loan, what happens if I want to repay the loan but by that time, the BTC price has gone up against the dollar? Does that mean my repayment is actually less if I repay with BTC? If I pay back with FIAT do I pay the original BTC amount or the new price BTC has gone up to upon repayment?

I understand what happens if the BTC depreciates too much, but just want to confirm what happens in a nexo loan if your crypto collateral appreciates in value.

Also, do you guys think that nexo tokens are worth it and do they really pay you dividends for it? Convert my btc to nexo -> take out loan -> repay loan using nexo get the discounted interest.

So when I check the firewall for traffic, I see that they all connect to the pool ip address. 172.65.195.45 port 3334 (nicehash), But occasionally I see some of my Antminer S9's connecting to some sort of other IP using port 123. And its not all of them. Only some, and sometimes it disappears. One of them was a legitimate NTP IP pool, but another IP was strange, when I put it in my browser, it asked for username and password.

Should I block it? Is there a reason why the S9's should need to connect to another IP address other than the pool? And the funny thing is, its UDP port 123 all the time, although thats used for NTP Network Time Protocol.

I've heard some people say that Antminer's can be DDOsed using NTP IP pools.

Any thoughts?

I have 1 circuit 240V 30 AMPs with 4 outlets:

Can I power:

3 Antminer S9's in Low Power Mode unchanged Hashrate (Not Enhanced Low Power). These will take up 3 outlets.
1 Antminer S17 in Normal Mode, plugging in the 2 power cords to a 14 gauge PDU connected to 1 of the remaining outlets?

I know the S9's realistically pull about 7 amps? Not sure about the S17 though.

Any advice is appreciated. Thanks.

No I directly downloaded from bitmain.

So everyone is saying the latest firmware removes the Enhanced low power option intentionally?

Yes I am under the MINER CONFIGURATION tab.
Please screenshots below.

The first screenshot shows the latest firmware. It was successful and the s9 hashes correctly. Was the Enahnced low power mode removed from the latest firmware? I even tried reflashing the firmware.
 
https://imgur.com/x8beBCe

This next screenshot shows the miner configuration tab. As you can see, the dropdown menu in your screenshot is not in my configuration tab.
Under MINER CONFIGURATION tab, there is ONLY general settings. There is no sub-tab.

https://i.imgur.com/a6uFtpy.png

All I see is low power mode and a checkbox. There is no dropdown and no enhanced low power mode:

Thanks for your help.

No. It is nowhere in "Miner Configuration". All I see is a checkbox for Low Power Mode. There is nothing that mentions Enhanced low power mode, or changing frequencies in "Miner Configuration"

Please see my previous screenshot.

Thanks for your help.

It is august firmware

Did they remove the Enhanced Low Power Mode in the august latest version? Why?

And why is the frequency for each board showing 1824? but the total is showing correct at 633? Is the controller going bad?

I have another S9 with the new august firmware that also does not have Enhanced Low Power mode, but the frequencies are showing correctly.

Both are hashing fine and have 0 rejected shares and accepted shares and correctly hashing the proper profitability for each machine.

They work fine, but it is worrisome. There is no way to go back to older firmware? Should I try a custom firmware like Braiins?

I have 2 issues with an S9 I bought from Ebay.

It seems to be working fine and I updated to latest firmware specifically to utilize the Enhanced Low Power Mode.
However, please see screenshot, latest firmware from Bitmain was installed, published date 2019-08-08, but I don't see Enhanced Low Power Mode, only Low Power mode.

Also what is strange is that in Miner status, Frequency (avg) for each hash board is showing 1824.96! So all 3 say 1824.96 but the total is correct and displaying 633.66. GH/S (ideal) is showing 13,107.00 for EACH hashboard, but the total is correct and showing 13,500 (13.5 T/hs)
GH/ (Realtime) is all correct.

Please see screenshots.
The S9 summary is correct and shows 13.6 Th/s and is giving accepted shares and seems to be working fine otherwise.
It is plugged into a 220-240V outlet.

https://i.imgur.com/MtvxrIQ.png
https://i.imgur.com/a6uFtpy.png

Thanks for your help.

I understand normally, 220v outlet is recommended on the AP3W++ power supply for the 1600 watts on a normal running S9 with all 3 hashboards.

However the new firmware allows users to lower the hash rate manually (thereby lowering wattage) as well as default selections "Low Power Mode" and even "Enhanced Low Power Mode" which offers almost 40% reduction in watts. I've read somewhere the low power mode brings the S9 down to 1258 watts. I've also r ed ad enhanced low power mode brings it down even further to 1000 watts or even lower.

My outlet is 120v with a 20 amp circuit breaker and I am using 14 gauge power cable. Can I use the Low Power mode, manually lower the hash rate by 1 or 1.5 Th/s or even  run in Enhanced Low Power Mode and be safe to run to the 120v outlet with 1 AP3W++, since my S9 now requires 1258 watts and even less in the more aggressive power settings?

If I dont care about efficiency, just safety, what is the best combination of manually lowering hash rate, using low power mode or enhanced low power mode to maximum hash rate possible  but be safe on a 120v outlet?

Yes. So unless I'm just hungover from yesterday and my brain isn't working at full capacity, the math should go:

.00211702 - .00000328 (which is 1 sat/byte as shown in the screenshot) = .00211417

However, as soon as I try to adjust the send amount, and start typing ".002...." Immediately electrum states at the bottom left  insufficient funds. Please see screenshot.



Am I just hungover or is my math correct? And if my math is correct, why can't I send at least net  .00211417 after the .00000328 fee? Also, 1 sat/byte is enough for my transaction to go through, albeit slowly and not be in BTC limbo, correct? Electrum WAAAAY overestimates the transaction fees. I can't imagine anyone using the default transaction fee unless they were desperate.

Thanks for your advice. Much appreciated.

EDIT: The change address seems to be directed back to my electrum wallet. Why is that?

See attached screenshot of a preview of a transaction.

So I have a confirmed balance of .00211702 BTC in electrum.
I clicked MAX to transfer all of it to another wallet.
I used the manual fee adjustment in Electrum and set it to 1 SAT/BYTE, which is telling me the fee will be 0.00000285 BTC.

Even if this fee was taken out, why is the MAX available sent still only .00111417 when I have a confirmed balance of .00211702 BTC?

Thanks for the help.