The best way to do it is to power your video cards with an external server grade power supply. You can buy a mod a high quality server PSU for about half the price of a higher end ATX PSU

While in contact with video card manufacturers MSI themselves recommended not using ATX psus for powering mining GPUs

ASICBOOST has literally nothing to do with the 'point' of bitcoin or decentralization. Its just math....anyone that wants to activate it can make their own pool and do it. Its not like this is some secret monopoly espcially since noone can PROVE it is being used by bitmain

I remember buying a bunch of delta fans to add fans to our S7-LN machines and to get them to read we had to swap the two data wires so the s7 could read them

bad fan would be my guess

You shouldnt need any more protection than what is offered by a quality server grade PSU.

You sir are a gentleman and a scholar. It seems i need to pay more attention, thanks for pointing that out for me!


Whats the SSH password for this setup? I am not getting enough info from the web console. I see it mining but not on my pool status page. I want to make sure it is running my settings and I am not mining for someone else.

Sorry about the delay on the power numbers.


The miner is running 6.48th. I am seeing 4.72 amp on 208 (PSU is 93% efficient) so they seem to pull around 1000w at the wall.

I am attempting to run zcash mining on your OS but I cant make it work. No matter what other miner I attempt to configure and use it just fails back to the claymore eth8.1

This is a freshly flashed SSD running an H81 pro BTC with 5x R9 Furys, celery processor, and 4gb of RAM

Are both systems doing it? Did you try each board in each plug on the controller? Can you post a screenshot of the config page? Can you post the kernel log?

It really depends on how much equipment you are running. If you are going for any kind of scalable larger setup you really should be running 3 phase power.

well look at it this way.

3 boards not hashing for a month

or

1 board not hashing for 12 months+

It will take 9 months to cover that month of downtime but the S9 is assuredly going to be on the market as the top dog for at least another year. There is nowhere for the tech to go right now as 10nm is 2+ years out for a boutique manufacturer to even tape out and test.

Personally I would warranty it.

So when you power up the PSU you do not get any lights? Not even the green light on the controller? Have you tried powering JUST the controller to see if it boots up? That would be my first step in troubleshooting.

The machine itself pulls 1200w at the wall so you want a PSU that is more like 1500-1600w for longevity.

Also be aware that the efficiency on the spondoolies is pretty bad compared to newer hardware. Unless you have free power you will lose money running it.

There are multiple options out there. I would recommend simplemining.net if you are building a small setup with only 20 gpus as you can cover that many on 3-4 rigs total. It is free and has a plethora of options to customize whatever you need.



P.S. There are plenty of options for you to start a farm, although I wouldn't recommend it unless you had a couple million dollars in startup capital. Not all the big bitcoin farms are in China. Fact checking is a long lost art I guess.

Its a pretty simple thing to figure out on your own.

1. Are you under warranty?

2. If not, are you willing to pay like $300+ to fix the board?

Why are you CPU mining? Unless you have bleeding edge hardware you are just going to lose money.

The R9 390s crap all over the RX series cards depending on the coin but use quite a bit more power. I am getting about 270 sol out of an RX470 and 330 out of my R9 390x mining zcash. Ethereum the difference is not as much. The 390 gets about 3 mh over the 470. (these are all with stock BIOS numbers btw, there are plenty of tweaks you can do to up it on both cards)

You can have a power efficient miner....or you can have a reliable miner with a real chance at reaching ROI before falling apart.

I can personally state the S9s have a 15% failure rate based upon running hundreds of them myself. The T9s I have so far have had zero issues. I would 100% recommend the T9 over the S9.

The hardware is not obsolete just because some people dont meet the requirements to run it profitably. You dont call a 2 year old car obsolete just because there are no paved roads where you live to drive it on. At $0.03 power they still profit about $58/mo after paying for power.


As far as the ASICBOOST goes does anyone know if it is even baked into the BM1385+ chip? As far as I understand the whitepaper for asicboost came out early 2016 and bitmain had been producing s7's since summer of 2015 which would lead me to believe there is nothing in the hardware of the S7 as far as ASICBOOST goes.