I'm using them for BTC, but I just wanted to know if I can use them for ETH too.

Hello, I bought 3 bitmain antminer S7 and I want to know if I can use them to mine ethereum.

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Those looks like good alternatives, thanks for the suggestions.

I can't find any seller of those fans, can any of you please provide a link on eBay or Amazon?

Sorry for my mistake, that information is from S7, no S9.

For the 6000rpm fan is around 210 CFM.

It's around 188 m³/h.

I thinking about use some Prolimatech Ultra Sleek Vortex 140mm, I know that its 166 m³/h, but I'm talking about ~20 dBa at full speed instead of ~75!

First, think about static air pressure and the condensation of the air. Second, go for the cheapest material for you, for example if you can get 6 sheets of MDF 1/4" x 20" x 20" (using the acoustic panels), you can get a better sound proofing than using plexiglass. Finally, think in how the heat flow out of your box, so always try to set you airflow as more vertically as you can.

Dogie, can you give me the distances from the edges to the nearest heatsink? Thanks.

yes, it's good

Personalmente, esperaria par de batch de S9, los actuales han resultado muy defectuosos o problematicos. Incluso en tiendas como eBay o Amazon, resulta casi imposibles de comprar, a no ser que sean averiados. Te recomiendo que pongas tus ojos sobre el S7 y que compres los mas que puedas hasta el 30 de abril, si bien el poder de operacion es casi 3 veces menor, el costo es entre 5 y 6 veces menor, sin mencionar que puedes lograr buena paridad en los 7 meses siguientes.

Has anyone ever tried to use another fans to reduce the noise? I thinking about use some Prolimatech Ultra Sleek Vortex 140mm, I know that its 166 m³/h instead of the 188 m³/h from the default ones, but I'm talking about 18 dBa at full speed!

Btw, which pool do you recommend? I just noticed that you set the pool fees at 0.5%

So my assumptions and calculations are correct: each miner can suck ~1300W at the wall.

Just to be clear in how this was calculate:
In 1 hour = 1.6 kW
In 1 month (744 hours) = 1,190.4 kW

1 PSU in 1 month @ USD$0.10 per kWh
1,190.4 x 0.10 = USD$119.04

Are my assumptions correct?

So, in less than a month we can start buying, right?

Hello team, I live in the Dominican Republic and I'm planing to buy at least 3 Antiminer S7, but I'm worry about the power consumption. Only one of those can suck almost 970 KWh (around USD$195 at current exchange) in a month.

Which alternatives do you recommend that I need to implement to keep my electrical bill low or, at least, to gain USD$50 per month?

I was looking for using green power sources (solar and wind), but the initial investment it's ridiculous: I'll need more than USD$10,000 just for a few miners.

Are you still selling it?

Some notes:

2016-11-11
I noticed that the longer the USB Cable, more hardware errors occurs: this is because (I think) the distance and the curves in the cable creates some interference in the communications. I discover than longer than 1M can start to introduce this problem to the USB Stick.

By using the superbpag 7 USB Ports I don't need a Y USB cable, but I noticed that it get pretty hot after a few hours of use. Consider to set a cooling system for the USB hub.

I'm using 3 stickminers (the 727 I burned down by accident: kids always use a fan and a good heat sink if you pretends to set more than 150MHz), with 3 meters long USB cables, an old laptop fan cooler (around 31 dB) and some old but useful heat-sinks 9Y692

https://s21.postimg.org/v43qkpzsn/Screenshot_from_2016_11_11_11_44_20.png

The voltages are 0.798V for the 709, 0.803V for the 714 and 0.799V for the 727. As you can see, there are running @ 350MHz without any problem after a long period of time, the rejected are because my bad internet connection, thats the price of living in the Dominican Republic. I managed to get up to 380 MHz, but every 5-10 minutes the 727 starts to give 1 HW and after an hour, every 10 seconds the 3 of them. Between 360 Mhz and 370 MHz, for some reason, 727 goes full zombie.

The internet is important: this configuration only uses up to 6KB/s of bandwith, so is 2KB/s per device.

I'm building a small cold chamber for the sticks using some Peltier cells and big-ass heat sinks and fan coolers, at least 500,000 mm³ for the final implementation, but for now I'll try with just some NF-F12 fans and the current heat sinks I have.

There are pretty expensive right now, only on Amazon at the moment of writing. I got mine on august at USD$60 each on eBay, now "no found results". Because of this, having more than 1 its not cost effective, remember these Stickminers are only for those who wants to test/have fun, so keep that in mind.

The electric bill in my country is a very corrupted system and the dollar exchange rate vary a lot: for September the bill was around USD$12, for an increment of USD$2 and I generated USD$0.60, for October was almost USD$23, for a false increment of USD$11. It's false because in october I only generated USD$0.47 and used my stickers 6 days less than september. To calculate the estimated electric cost just think about the power consumed by the USB Hub, add the computer/RaspBerry's power used, multiply per every hour of use and multiply by the cost of every consumed watt. To make this calculations shorts, I'm suppose to pay no more than USD$5.00 just for using my current mining rig and my main laptop.

Noise: I strongly believe that everything louder than 35 dB (common conversation level) its too much for a home, so keep in mind to use quiet fan, no more than 25 dB. Some of the new AntMiners, specifically the S9 are too loud, around 75 dB. THAT'S A JUMBO JET!!!

The current heat sinks of the Gekko, I think and I'm sorry for my offense, it's bad designed. It has vertical channels instead of horizontal ones to allows a correct air flow. But, we can change that with very little effort/cost. Just a quick search in Amazon or eBay.

First, sorry for my bad english, is not my native language.

Thanks brother, but I can't see the peltier cell installed, can you please explain me how are you using it?

How did you increased the vcore voltage more than 0.8V? BTW, I saw the capacitor (I think is a 16000 uF, but I'm not sure)

Have you tried to set the frequency more than 500 MHz?

The piece you're using to fit the heatsink is pretty clever, what is it name and where can I find it?

Can you provide the noise level of the fan?

How long is the USB cable? Have you tried with a shorter one?