FYI - there are no 30 asic boards. There are only 45 and 54 chip boards, if you are seeing a 30 chip board that means it is a malfunctioning board.

Be aware that the AC will basically eat up most of your mining profits when you pay for electricity which is why everyone is recommending against it. Since you state the the apartment covers electricity this shouldnt be an issue for you. The rigs put off a fair amount of heat but in a small room a 7500 BTU AC should still be able to keep up.

Sometimes hardware just fails. When you consider these cards were not designed for the 24/7 grind that is being placed on them the fact that they are as reliable as they are is pretty good.


P.S. If this was an RX 470 it is expected behavior. They are known to have a 10-12% failure rate within the first 30 days of hardcore mining.

In a datacenter, which is what the intended use of these is. The only quiet home option is the super unreliable Antminer R4. As a side note I have found that the ebit miners are the quietest of all the 16/14nm miners I have worked with. Their firmware also offers the most control of the miner versus the Avalon and bitmain units.

The control board is what I would say is having issues. It is an easy swap, 4 screws to take the controller/housing off, then 4 more to separate it from the housing.

First this needs to go in the altcoin forum not the bitcoin forum section.

Try this command "lspci |grep VGA" and see how many cards are showing up. If theyare not you may have bad risers or a misconfigured bios.

The S7 boards will heat up if they are powered whether they are mining or not. I would say post the kernel log and we can tell you better whats happening. Also I would post this under the Mining Support section

You cant just immersion cool without figure out a way to fake the control board into thinking there are still fans running. The firmware is designed to shut the miner off if either of the two fans stops working. The trick is to not run industrial equipment like these miners inside your house.

L3 is a Scrypt miner, doesnt have anything to do with the SHA256 miners.

Macs now use x86 architecture and can emulate windows programs just fine if you still want to use the AwesomeMiner client.

the most profitable SHA256 coin to mine for BTC is......bitcoin.

You need to match the batch of your unit to the firmware. Older versions had a static speed set and you need to flash with the firmware that corresponds to the default speed of the device.. If your current machine is an autotune version (aka no advanced settings tab and no wya to modify fan speed) then you can use the firmware labeled autofreq.

I may be in the market for a large scale setup like this but the price seems a lil high. The price breaks down to about $2450 per unit but there is only about $1500 in hardware per unit max from what you have described. Could you break down how you came up with the figure you are asking?

Asking a company to do something illegal to save you a few bucks is probably not the best way to go. Recommending people do illegal things on the forum is not smart either.

Considering the shipping costs and the efficiency of those miners I would not take that deal.

Chances are you have a bad board. Please post the kernel log after booting and hashing for a bit. This will greatly help in troubleshooting the issue.

Miners dont run at a constant speed, that variation is normal. The reported hash rate is just an average of what the miner is doing overall.

As an example this is an s7 running at 4.050 th/s (averaging 3.98th/s pool side)





As far as the machine not reconnecting, that is not really normal. The S4s I used to run never needed any type of reset due to a lost connection, it would just pick back up where it left off.

Each hash card should have a sticker on the back side (small heatsink side) that says something like 45#700 referencing the chip count and stock speed. There are also stickers that should have the order number on each board so you can verify they are the three original cards from that system.

If it is not a power issue im thinking its a controller issue. Not an issue with the beagle bone itself but with the control board where everything plugs into.


Also posting the kernel log would be helpful in troubleshooting this issue.

Not sure what the other guy is talking about because these miners actually only lose speed when they get too cold not too hot. The miner will run full speed up until the 80c cutoff built into the firmware. It looks like you have a board with bad chips. Can you post a screenshot of the actual miner status page? It will help quite a bit for troubleshooting over the forum.

Dont listen to all the ignorant people claiming that mining is not profitable. This is simply not true. It is not blanket profitable for any random person wanting to mine, there are always conditions that need to be met to stay profitable but to say its not is just stupid.