Topic: ANTMINER S2 Discussion and Support Thread - page 139. (Read 355730 times)

S1 is a dead product already.
Sorry , but with 2.1w/Ghs is a lost case.
I wonder who buys it today.

I would not go with S2 either.

I would buy an A1 clone for much, much , much less.

 

Still waiting to hear positive confirmation from the Bitmain engineer/s regarding 2x 700-750w PSUs.

That is crazy. Are you still mining with all 77TH? Do you personally own all 77TH or is this hardware shared as part of a mining group?

I have 20 S1s mining right now, and all work flawlessly, so I hope Bitmain addresses the S2 quality issues and offers a new competitively priced batch of S2s soon.

Bitmain not only offers a great product at a fair price, but they are also putting an end to a lot of the shenanigans pulled by other hardware manufactures by forcing them to alter behavior in order to stay competitive.

Just say no to pre-orders! 

Bitmain not only offers a great product at a fair price, but they are also putting an end to a lot of the shenanigans pulled by other hardware manufactures by forcing them to alter behavior in order to stay competitive.

Just say no to pre-orders!  

Bitmain is the only choice for Bitcoin Mining


Why do I say this?

I have purchased 267 Antminer S1's. Out of 267 S1's I have had 1 problem unit. One unit with a dead ASIC blade. That's it, 99.8% success rate. That's unbelievable. They just keep running, and running smoothly.

I have purchased 27 Antminer S2's . Out of those 27 S2's I have 1 blade that only half worked (From batch 1. The heatsink had a burr on it that cut into the board and shorted out half the blade). I also had 1 power supply that melted as the cables weren't connected tight at factory. While batch 1 had a good amount of extremely irritating issues, batch 2 was much better and batch 3 was nearly flawless (A few loose internal cables). I have been in contact with Bitmain concerning all the issues and they are indeed working to correct where they have come up short.

I have no doubt the S2 will soon be just as rock solid as the S1, and as you can see form above, the S1 is gold standard in ASIC hardware.

It was more like a batch 2B but people are referring to it as Batch 3.

Are you telling me, hes a failed arm chair engineer?

 

LOL the dude claimed to be a computer engineer and criticized Spondoolies's strategy,

How in the world did you get Batch 3 when they haven't released it yet?

Bitmain is the only choice for Bitcoin Mining


Why do I say this?

I have purchased 267 Antminer S1's. Out of 267 S1's I have had 1 problem unit. One unit with a dead ASIC blade. That's it, 99.8% success rate. That's unbelievable. They just keep running, and running smoothly.

I have purchased 27 Antminer S2's . Out of those 27 S2's I have 1 blade that only half worked (From batch 1. The heatsink had a burr on it that cut into the board and shorted out half the blade). I also had 1 power supply that melted as the cables weren't connected tight at factory. While batch 1 had a good amount of extremely irritating issues, batch 2 was much better and batch 3 was nearly flawless (A few loose internal cables). I have been in contact with Bitmain concerning all the issues and they are indeed working to correct where they have come up short.

I have no doubt the S2 will soon be just as rock solid as the S1, and as you can see form above, the S1 is gold standard in ASIC hardware.

I'm just getting tired of refreshing their website whenever I can several times a day. I know B3 will last 5 minutes and I will miss out.

Its not redundant unless the device can run with one PSU working. That would be 2x 1000W+

2 x 650/750W server style PSU should be ideal...even redundant...and cheaper too...IMHO...

But this is their product/design...

Still waiting to hear positive confirmation from the Bitmain engineer/s regarding 2x 700-750w PSUs.

After having no setup issues and running great for the last couple of weeks, I woke up this morning to find my batch 1 AntMiner S2 not hashing, fans going full speed, panel dim and the red light solid. Recalling that others here have had the same issue, I went back and skimmed over the previous posts and found that the likely issue was probably a corrupt SD card. That was indeed the case, as I am now back up and running, and I figure the problem started when a brief power outage occurred here this morning. Thought I would briefly summarize what I did to recover, which may be of special interest to those folks using a Mac to write to their SD cards:

- ran to the store and bought a 4gb Sandisk microSD card. They didn't have any class 10 cards, only class 4, but it seems to work (ordered a couple class 10s from Amazon for backup).
- Downloaded onto my MacBook the latest firmware from the bitmaintech website, as well as the SD card image from https://dl.dropboxusercontent.com/u/16075357/bitmain.img.zip (thanks 1l1l11ll1l)
- put the new microSD card in the adapter, shoved it into my MacBook, read through the guide at http://elinux.org/RPi_Easy_SD_Card_Setup, and then ran these commands in Terminal:
   cd Desktop (my bitmain.img was on the desktop)
   diskutil list (to find the disk name of SD card, mine was disk2, so replace disk2 below with what yours is)
   diskutil unmountDisk /dev/disk2
   sudo dd bs=1m if=bitmain.img of=/dev/disk2 (this took 30 minutes to complete)
- once SD card was ready, I opened up the AntMiner, pulled out the BeagleBone card, swapped SD cards and reassembled
- powered up, and it started hashing again. Connected to the miner from the browser, uploaded the latest firmware, changed to point to my pool, and everything was golden.

Much thanks to all of previous posters that talked about this issue, as your help got me back up in hours as opposed to days.

I have NO issues accessing my batch 2's thru the VPN.

Hi,

Is anyone having issues accessing S2 units through a VPN?

I have two installations behind two different VPNs and cannot access any S2. Other machines behind the VPN are accessible and the machines are accessible when I am directly connected to the network. These are batch 1 and batch 2 machines.

Cheers