Ebits are just kind of crappy miners. I have a bunch of the 6.3T e9's that only run around 5.5T no matter what I do to them.

Its still profitable at 10c plus yes, but if you can pay someone to host for around the same price and they do all the maintenance while not having to worry about the sound or heat it just makes sense to have them hosted. Obviously thats just a personal opinion but I say that with 3 years experience running crypto datacenters that host miners.

R4 is a completely different design with a different type of fan.

S5 controller/software doesnt support S7 boards, simple as that.

Firmware for the s9 is closed source, there is no way to enable an extra board.

Please DO NOT DO THIS. Opening up your miner to the internet in any way will result in you being hacked almost instantly.

As a general rule, unless your power rate is under $0.08/kwh all in, hosting is a better option.

You realize that the profitability changes second to second with the price of bitcoin right? You cant use this information to forecast, it just doesnt work like that.

Bitcoin datacenters do not use traditional server racks, putting them in a server case would serve little purpose since infrastructure would have to be changed within the mines to support the change.

There used to be this style (Antminer S4 and Cointerra come to mind) but the industry moved away from the design for a reason.

You are selling a service and calling it a donation. This should be put in the proper forum as people might think you were doing it altruistically for the help of the community

So you cant figure it out when tens of thousands of people can and all of a sudden its the companies problem?

What a useless post.

You act like bitmain is the only hardware company out there.

Currently active ASIC manufacturers:

Bitmain
Canaan Creative aka Avalon
Bitfury
BW
Whatsminer
Ebang

Let us try to apply a little common sense. What is the biggest problem with phones? The battery doesnt last. You want to run something that pushes the phone to 100% power usage 100% of the time. Your battery would die in an hour or two every single time you mined. Why the hell would anyone want to mine on a phone and make it completely unusable for anything else?

This is such an obvious problem I dont understand why people keep asking about it.

Not to mention a tiny mobile GPU rendering a 3" screen cannot even be compared to a $750 desktop graphics card with more system memory than the average laptop....


Obvious problems are obvious.

Umm there is no sensor on the fan. The sensors are on the mining chips themselves. Sounds like all of you just need to warranty your shit. This is a normal failure rate for bitmain products.

The BIOS is the limiting factor on older motherboards for how many cards you can run. In mining mode cards only need to be connected to PCIE 1x through risers and use very little bandwidth.

I would recommend Eaton or APC PDUs for what you need. The amount of machines you can run will depend on the breaker and power setup. If you only need a couple I would try to source them on the secondary market as they are usually  priced at about 10% of their original MSRP.

Running AC will demolish your profits as you need a large amount of AC for that many miners. A 24k BTU AC will not keep up with that many ASICs

The light on the miners themselves should be blue. I am not sure why you are saying they are green.

The light on the AUC should be blue if there is nothing connected and green if it is in communication with the miners themselves.

Does the controller see the AUC itself? In the config status pages there is a middle section that shows the AUC and the bottom section shows the actual miners.

Just to throw this information out there since i believe most people dont understand.

An empty status page means bmminer is not running and the machine is not hashing.

"Socket connect failed: Connection refused" <----this is not an error in and of itself. This is the firmware trying to read the api of bmminer. If the machine is not hashing and bmminer is not running, it will refuse the data request with this message.

This is also why the hardware and bmminer version will show up blank. bmminer is not running, therefore it cannot respond to requests for those values.

All of these things can be traced to bmminer not running. You need to be looking into your kernel logs and figuring out why bmminer isnt starting.

Also, if these are November or later batches, I have experienced a number of hashing problems. Roll back your firmware to something from april /May and it will most likely solve your problems. The specific firmware I use to fix my antminers is: Antminer-S9-all-201704280713-autofreq-user-Update2UBI-NF.tar

The easiest fix is to change your networks subnet mask from 255.255.255.0 (which only allows you to connect to the single network segment you are on. aka 192.168.1.xxx) over to 255.255.0.0 (This will allow you to see any machine on the 192.168.xxx.xxx networks)

The miner page will remain blank as long as the bmminer executable is not running.

Take a copy of your kernel log and post it here. Just make sure to use the insert code button above so that your post does not become 10 miles long.

The s9 is doing that to keep the chips in a safe operating temperature range. It is working as intended. There is no solution because there is no problem.