Hello bitcointalk....

I have a large number of S7s available for cheap. The vast majority have been modded for increased power efficiency using Sidehacks PIC flash mod.

See thread for modifications done:   https://bitcointalk.org/index.php?topic=1504228.0

These machines run at 4TH for about 1000w, making them similar to the Antminer V9s on sale now. They can, of couse, be reflashed to stock if you so desire, all instructions are in the thread I linked.

I am not looking to piece these out 1 at a time, looking at a MoQ of 50 units. Pricing is up in the air, if you are serious, make me an offer.

These are coming from a mining/hosting company, not an individual seller. All machines are tested and cleaned beforehand and we offer a 7 day no DoA warranty on all machines.

BTC and bank wire are the accepted forms of payment.

Direct from the trade show.

Ebit E9++

https://i.imgur.com/8ru6tWt.jpg


Ebit E10

https://i.imgur.com/rP4rYEf.jpg


Ebit E10.1

https://i.imgur.com/94ORIYp.jpg


Pricing is RMB1900/TH

which is almost 30% more than bitmains current pricing.

https://canaan.io/product/avalonminer-821/

Hashrate    11.0 TH/s (RTHS)
Power Consumption     ≈ 1200W, +0% ~ +15% (with 93% PSU efficiency @ 25 C)
Power Efficiency    0.109 Joules/GigaHash at the wall
Chips    104 x A3210 16nm ASIC
Frequency    Smart Speed
Hash Error Rate    ~2% on chip validation
PSU output pins     NA
Network Connection    Through AUC3 + AUC3 I2c to AvalonMiner Controller
Controller    AvalonMiner Controller
AUC3    Each AUC3 may daisy-chain connect up to 5 devices
Operating Temperature    -5C-40C
Air-intake Temperature    -5 °C to 40°C
Cooling    Airform Cooling 1 rear fan 6000 RPM
Fan    1 X 12038 PWN
Noise    50-60db

There are at least 2 accounts I have noticed that have been spamming the boards with the same whatsapp contact number claiming this is where they bought hardware. Until the mods catch on and ban these guys please be careful and dont fall for their game. Every post from both accounts says the same thing over and over.


jerry1111 - https://bitcointalk.org/index.php?action=profile;u=1162287

Michael Cherbakov  - https://bitcointalk.org/index.php?action=profile;u=1163945

Noticed this lil tidbit in a press release announcing Proof of Existence being acquired by Canaan.

http://www.coindesk.com/press-releases/canaan-acquires-proof-existence/

Canaan, known for it’s ASIC design and manufacturing expertise has recently closed a round of financing for $43 Million to support its upcoming 7nm designs and to enter the AI market with its first Knowledge Processing Unit (KPU).

Having a strange issue that I cannot figure out.

I have a mix of S7, S9, and Avalon6 units. All of the S7s at various times lose about 20% performance. This happens across the board to ALL s7s I have regardless of what pool they are running on. I have tested on Kano, antpool, f2pool, etc. All of the S9's as well as the Avalons do not lose speed at all. The issue is limited to only the S7, which I have a mix of batch 1 through batch 17 and all of them do the same thing. I have different machines with different firmware so it seems firmware independant as well. Any input would be appreciated.

Its crazy to think so many people pumped money into this thing without thinking of the problems inherent in the DAOs design.


http://hackingdistributed.com/2016/05/27/dao-call-for-moratorium/

I have an S7-F1 that is acting strange. I can ping it with no packet loss and I can access the web interface but whenever I try and click on the miner status tab it just hangs. All other tabs function normally. I also am having ssh issues, I get an RSA key prompt, and I am able to input my login but it just stalls and never asks for the password. Odd thing is when I brought it in for diagnostics with no boards connected I am able to access the status page without issues. Has anyone seen anything like this? I am still troubleshooting but I figured I would throw this up in case anyone had seen this behavior before.

Does anyone know the actual fan specs for the S7? These cheapo fans have no labeling of any type to look up the info. I have tried multiple replacement fans and none of them run properly. The only other fan I have found that I can replace them with are from some old S4s I have that were just gathering dust. I have had to replace 5 S7 fans in the last 6 weeks and would really like to get some replacements ordered so I dont have to disassemble functional units for them.

Thanks in advance!

Hello all,

Can anyone make any recommendations on server farm monitoring software for antminers? The main ones I have found on this site so far seem to be geared more towards the home miner monitoring a small number of miners. They have too many bells and whistles that are unnecessary on a more industrial scale. I am looking for something to do basic fault monitoring on a large number of units (1000+). Is the unit running? Is it overheating? Has there been a hardware failure? I dont need altcoin mining, pool switching, profit calculators, or a fancy cluttered UI. Avalon has something very similar to what I am looking for that they call AMS (Avalon Monitoring System). It shows number of expected vs running units, has a color coded temperature diagram to zero in on heating issues quickly, and shows errors based on the RPi error codes. With all the homebrew creations out there I am hoping someone has a few suggestions for me.

Thanks in advance!