Ever notice how people only say this right before they say something that makes them look like a total prick?

Just out of curiosity...do any of you use this as a router? Cause this feels like a bunch of people sitting around watching slugs race.

So they have a PREORDER up and there is a disclaimer that they wont start mining till the s9s are released and are hashing in their datacenter.

Where exactly is the fraud?

This is an interesting topic because a lot of people still have it in their heads bitcoin mining is a hobbyist thing. Bitcoin is big business now and the halving is not some big scary thing for businesses. You just calculate the difference in profit vs operating costs and make sure you do not screw yourself on forecasting and everything will eventually level out again. As much as people on here dont seem to want to accept it, home miners just do not matter anymore. You cant be mainstream tech and rely on joe random processing your payments with a few patchwork mining machines setup in his garage.

I can confirm that you can just add a second fan onto the F1 and it will run just fine. I have done it to 18 of my F1s and it controls the fan and reads rpm properly.

On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush

Ya I guess I just dont really look at it from the home mining side as there is no profit to be had that way. Noise, high electric costs, and limited incoming power all to me scream "dont bother" at home.

You could take a look at cryptoGlance

https://bitcointalk.org/index.php?topic=569924.0

It is software that has a companion Android app for remote monitoring. If you are only running a small number of miners this should work pretty well for you. Just make sure to read everything on their github about connecting remotely because I do believe there is a bit of configuration required to get it working.

I am confused. How is it a waste of 1300 watts? The wattage used is directly related to the hashing speed. Having a smaller slower miner doesnt make sense to me. If they are smaller it just means you need more of them to hash at the same speed as a larger unit would run at. The whole point of running the miners is to make a profit and breaking them down into smaller units will increase operating costs.

Sounds like a batch one system for sure. I have seen a number of the early ones that only like to run around 3000-3200. If you use a PSU that can put out a lil extra juice like the IBM 2880s that give you 12.27v they will run around 3.6-3.7 ghs. Not sure how badly efficiency is affected by doing this but in our tests the difference was negligible. Wish I could find a quality Kill-a-watt style meter that can run from 200-230v so I could get some more accurate tests. I just have an amp clamp and a multimeter to test with at present.

Ive noticed my S7-F1s run consistantly hotter than all the batch 1 600 mhz S7 group that I have. All of the F1s here are modded to run a second fan but still stay a bit hotter on average it seems. I would guess its the 600mhz vs 700mhz setup causing it.

These are batch 1 Avalons running since November.

Nice and toasty!





P.S. You do not want to run your Avalon hashing boards UNDER 60c. You will lose performance the colder they get.

The boards from both Avalon and Bitmain are supposed to shut down at 80c. This is not the actual thermal limit for the hardware, but the limit imposed to protect customers from actually letting them run too hot, They will actually hash north of 90c before becoming a dumpster fire. Anything under 80c should work just fine, or keep it under 75c if you are paranoid.

S7 Power Consumption: 1293W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp)

aka 1422w at the wall at a low ambient temperature


If they plan on selling the same PSUs for the new generation I cant honestly see them going past this number as 1430w is already close to 90% load on the PSU and you certainly dont want to run a PSU at its max rating full time.

random guess based on zero useful information


10T @ 2300w for around $1800

https://enforum.bitmain.com/bbs/topics/3433?page=1


^^^second from the last post has what I would assume is confirmation of the S9 being released very soon.

You can underclock the Avalons in the cgminer config page. There is a frequency setting for the chips between 100 and 500. Set it down to 100 and your avalon will run around 950g-1th

If you want to make a profit you will have to do better than that price. Especially with the halving coming you need cheaper rates. Think more like $0.05/kwh or less to make any kind of ROI at this point.

Thats not a bad thing. From personal experience the 1 fan units have more issues than the 2 fan units by far. Out of 36 test units we have had 3 show bad chips and one go into nuclear meltdown in the first two weeks of having them. Meanwhile the 2 fan S7s i run just sit in their corner and hash away happily.

Apologies for the delay in my response. I wanted to give Minera a try for a while before responding to your questions. There are a number of things incorporated into Minera that I feel could be removed completely for an industrial version of the software. Local miners (cpu mining in particular has no place anymore), local pools, profitability charts, and live prices all have no use for what I do as I monitor thousands of units on a daily basis. The data im given needs to be streamlined and pertinent to my setup.

Things That do matter are(in no order):

overview of the total number of active units (including how many units per RPi for Avalons)
unit hash rates
all temperatures (antminer and avalon both have multiple temperature readings and from my testing it only shows one of the numbers on the dashboard)
error rates
last share time (to determine how long a unit has been down)
ability to adjust miner speed (chip frequency)
auto restart attempts on machines not hashing at their rated speed (needs to be adjustable based on chip frequency selected)
error rate notifications
chip failure notifications
fan failure notifications
overheating notifications
system board failure notifications
error code readouts
mass restarts
mass pool changes
mass frequency adjustment, possibly on a timer to downclock during preset times to dodge overheating problems


Also here are some issues with Minera I have found while testing:

entire sections of the dashboard grey themselves out and become noninteractive for no reason that I can find. (it is not tied to the refresh timer which I have left at 60 seconds)
The charts do not show any information, they just say no data collected (only for local miners?)
miner tab - reset miner does nothing (only for local miners?)
network error rate doesnt calculate correctly (its been telling me I have 87% network errors)
last network share reads incorrectly (at present its telling me i havent had a network share in 515707898 seconds)
network pool hashrate for what I have connected is off by about 10% vs unit and pool reporting
system temperature widget - i dont even know where it is getting this temperature reading from?

As far as pricing goes, thats a tough question to answer since there are so few complete solutions available to guage the value of software such as this. I can say the per unit pricing model that Awesome Miner uses flat out will not work. Systems are added all the time and client access licenses just wont work unless they are sold by the thousand and not individually.

Is there a way to set it up to only show the overview by default? I only have 25 machines added and its laggy and things bounce around too much as it tries to update each and every units total stats. The overview is constantly reporting units are offline due to the constant updating of the stats in each frame. Also is there a way to add temperature to the overview? It is one of the most important pieces of information needed when monitoring a farm.