ANTMINER S2 Discussion and Support Thread - page 47.

digitizing

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Quote from: futurovida on June 13, 2014, 08:56:19 PM

Quote from: sjc1490 on June 13, 2014, 06:37:52 PM

futurovida,
Out of curiosity what did you use for fans case etc? Interested in trying ones but looking for ideas on the best way to setup. Thanks.

now attached to modified plastic case.

is it possible to use pc case ?

futurovida

newbie

Activity: 28

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Quote from: sjc1490 on June 13, 2014, 06:37:52 PM

futurovida,
Out of curiosity what did you use for fans case etc? Interested in trying ones but looking for ideas on the best way to setup. Thanks.

now attached to modified plastic case.

sjc1490

hero member

Activity: 546

Merit: 500

futurovida,
Out of curiosity what did you use for fans case etc? Interested in trying ones but looking for ideas on the best way to setup. Thanks.

Syke

legendary

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Merit: 1193

Quote from: Biodom on June 13, 2014, 04:54:23 PM

My dream for a miner: the one WITHOUT fans. Can it be done with large enough heat sinks?

Bitfury from last year could run without fans.

biggzi

hero member

Activity: 543

Merit: 502

Anyone got a spare s2 coupon? Would be greatly appreciated.

Bitmain username: Biggzi

futurovida

newbie

Activity: 28

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Received S2 Kit after 5 days place order- nice...
all in good condition and easy assemble
up and running at 1.08TH/s- Grin

another unit on the way. Grin

good job BITMAIN!!

only hope future can remarks as "Computer Gateway" as previous order instead of "Bitcoin Mining Accessories" for tax exemption.

kbiteroner

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Activity: 84

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Quote from: nottm28 on June 13, 2014, 03:08:36 PM

~~Anyone got an S2 coupon - willing to tip~~

kbiteroner - thanks

Coupon sent Wink

Biodom

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My dream for a miner: the one WITHOUT fans. Can it be done with large enough heat sinks?

nottm28

hero member

Activity: 574

Merit: 500

~~Anyone got an S2 coupon - willing to tip~~

kbiteroner - thanks

hurricandave

legendary

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It looks like a voltage regulating resistor is reaching a thermal point which it can no longer handle and opens. Or circuit protection device on the controller board. It may be prudent to inspect each solder point for possible crack that may allow the circuit to open when the physical temp. of the controller board surface lets the surface mounted device pull off the board, or a bad bi-metal relay opens.

TracerX

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Quote from: soapmodem on June 13, 2014, 08:28:47 AM

Quote from: freebit13 on June 13, 2014, 04:18:25 AM

Quote from: soapmodem on June 12, 2014, 05:17:58 PM

Quote from: TracerX on June 12, 2014, 08:50:18 AM

Quote from: soapmodem on June 12, 2014, 07:30:25 AM

I have an unusual problem.. I used to be able to tunnel into my S2's via SSH, but now root/admin isn't working as a username and password. It seems to have changed (?). I've tried root/root, admin/admin, admin/root, root/admin.. no dice.

The web interface still works fine with root/root.. I just can't get in via SSH anymore.

How can I resolve this?

It may be time for a reboot.

Tried it. Tried powering off and back on. Tried reflashing the firmware.. still no dice. Sad

I think I read in Kano's github post for the S2 firmware upgrade he's working on that there was something about SSL not working and changing some files, perhaps that'll work for you:

https://github.com/kanoi/cgminer-binaries/tree/master/AntS2 (at the bottom)

I'll also take a look at this; thanks Freebit. If this is the solution I'll provide you a good tip

Depending on what program you are using, you may need to delete the "known_hosts" file where the S2s ssh key was stored. Some SSH clients refuse to connect if the keys don't match, although it's odd that it doesn't provide you some feedback along those lines. Once you've removed the "known_host" file, you'll be prompted to accept the SSH "fingerprint" that the S2 is providing again.

The S2s key may have become corrupt or changed, which is why this might be your issue if removing the "known_hosts" file works for you.

To learn more, take a look at how SSH uses keys: http://en.wikipedia.org/wiki/Secure_Shell#Key_management

FlensGold

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Quote from: FlensGold on June 11, 2014, 02:27:21 PM

Quote from: FlensGold on June 11, 2014, 01:02:05 PM

Does anyone have an idea what to do when the miner does not turn on again?
After setting it up it hashed a few minutes, beeped and turned off since then. I already re-plugged the cables and cards are also all seated correctly...

Edit:
After waiting ~20 Minutes I started another try. Switched it on and suddenly it started to work.
I was able to access the web frontend but for some reason one blade did not show any temperature:

A few seconds later the miner powered off by itself and does not power on again (for ~20 Minutes or so I assume/hope).
Can this be the problem?

I did some more tests. For some reason the miner seems to run stable as long as only 9 cards are inserted. It does not matter which cards and which slots are used (at least it seems so) as long as only 9 cards are inserted. As soon as there are 10 cards inserted the miner immediately turns off after the "start beep" (the beep which comes after it is fully started and the display has been "initiated").

Can a "weak" PSU be the reason? Unfortunately I do not have a 1000+ W PSU here to test it...

To find out if had a "broken" PSU I ordered another Enermax Revolution 87+ PSU (same one as normally is built in a S2). The same happened as with the original one, after starting up it shuts down.
So I added a kind of electricity meter to see how much power the miner requires.
This is with 9 blades attached:

And this is with 10 blades attached:

As you can see the miner draws ~1040W until it turns off. The PSU is a 1000W PSU, maybe this can be the problem?
As mentioned before the system is running stable when only running with 9 blades...

BITMAIN

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Activity: 741

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https://www.bitmain.com

New price for AntMiner S2 1 TH/s Kit: 2087 USD each one, shipping cost included.

BITMAIN

hero member

Activity: 741

Merit: 514

https://www.bitmain.com

New price for AntMiner S2 1 TH/s Miner Batch 4: 2226 USD each one, shipping cost included.

soapmodem

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Activity: 157

Merit: 100

Quote from: freebit13 on June 13, 2014, 04:18:25 AM

Quote from: soapmodem on June 12, 2014, 05:17:58 PM

Quote from: TracerX on June 12, 2014, 08:50:18 AM

Quote from: soapmodem on June 12, 2014, 07:30:25 AM

I have an unusual problem.. I used to be able to tunnel into my S2's via SSH, but now root/admin isn't working as a username and password. It seems to have changed (?). I've tried root/root, admin/admin, admin/root, root/admin.. no dice.

The web interface still works fine with root/root.. I just can't get in via SSH anymore.

How can I resolve this?

It may be time for a reboot.

Tried it. Tried powering off and back on. Tried reflashing the firmware.. still no dice. Sad

I think I read in Kano's github post for the S2 firmware upgrade he's working on that there was something about SSL not working and changing some files, perhaps that'll work for you:

https://github.com/kanoi/cgminer-binaries/tree/master/AntS2 (at the bottom)

I'll also take a look at this; thanks Freebit. If this is the solution I'll provide you a good tip

soapmodem

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Activity: 157

Merit: 100

Quote from: PhilippeD on June 13, 2014, 07:04:04 AM

Quote from: soapmodem on June 12, 2014, 05:17:58 PM

Quote from: TracerX on June 12, 2014, 08:50:18 AM

Quote from: soapmodem on June 12, 2014, 07:30:25 AM

I have an unusual problem.. I used to be able to tunnel into my S2's via SSH, but now root/admin isn't working as a username and password. It seems to have changed (?). I've tried root/root, admin/admin, admin/root, root/admin.. no dice.

The web interface still works fine with root/root.. I just can't get in via SSH anymore.

How can I resolve this?

It may be time for a reboot.

Tried it. Tried powering off and back on. Tried reflashing the firmware.. still no dice. Sad

Hello,

You have to totally flash the AntMiner S2 sd card with a full image (3,67 Go).

Below, the link to download my full AntMiner S2 sd card image (3,67 Go) and the software to flash it on your sd card. (Win32DiskImager).

Unzip "AntMinerS2-SDcard.zip" (18,3 Mo) to "AntMinerS2-SDcard.img" (3,67 Go).

Then flash "AntMinerS2-SDcard.img" with Win32DiskImager on your sd card.

You AntMiner S2 will restart with SSH "on", and DHCP.

If OK, please let work your S2 for me during one hour Wink

Link to download : https://www.dtspro.fr/ipc/partage/?p=44206&i=R86RF1PPBN

Philippe, if this works I can't thank you enough. I'll let you have some time on the miner if so

At this point I suspect I might've been hacked, tbh, because all of my config files are locked and unwriteable, even after flashing the firmware. I'll get back with you later on to tell you how it went.

PhilippeD

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Activity: 81

Merit: 10

Quote from: soapmodem on June 12, 2014, 05:17:58 PM

Quote from: TracerX on June 12, 2014, 08:50:18 AM

Quote from: soapmodem on June 12, 2014, 07:30:25 AM

I have an unusual problem.. I used to be able to tunnel into my S2's via SSH, but now root/admin isn't working as a username and password. It seems to have changed (?). I've tried root/root, admin/admin, admin/root, root/admin.. no dice.

The web interface still works fine with root/root.. I just can't get in via SSH anymore.

How can I resolve this?

It may be time for a reboot.

Tried it. Tried powering off and back on. Tried reflashing the firmware.. still no dice. Sad

Hello,

You have to totally flash the AntMiner S2 sd card with a full image (3,67 Go).

Below, the link to download my full AntMiner S2 sd card image (3,67 Go) and the software to flash it on your sd card. (Win32DiskImager).

Unzip "AntMinerS2-SDcard.zip" (18,3 Mo) to "AntMinerS2-SDcard.img" (3,67 Go).

Then flash "AntMinerS2-SDcard.img" with Win32DiskImager on your sd card.

You AntMiner S2 will restart with SSH "on", and DHCP.

If OK, please let work your S2 for me during one hour Wink

Link to download : https://www.dtspro.fr/ipc/partage/?p=44206&i=R86RF1PPBN

freebit13

hero member

Activity: 616

Merit: 500

I got Satoshi's avatar!

Quote from: soapmodem on June 12, 2014, 05:17:58 PM

Quote from: TracerX on June 12, 2014, 08:50:18 AM

Quote from: soapmodem on June 12, 2014, 07:30:25 AM

I have an unusual problem.. I used to be able to tunnel into my S2's via SSH, but now root/admin isn't working as a username and password. It seems to have changed (?). I've tried root/root, admin/admin, admin/root, root/admin.. no dice.

The web interface still works fine with root/root.. I just can't get in via SSH anymore.

How can I resolve this?

It may be time for a reboot.

Tried it. Tried powering off and back on. Tried reflashing the firmware.. still no dice. Sad

I think I read in Kano's github post for the S2 firmware upgrade he's working on that there was something about SSL not working and changing some files, perhaps that'll work for you:

https://github.com/kanoi/cgminer-binaries/tree/master/AntS2 (at the bottom)

freebit13

hero member

Activity: 616

Merit: 500

I got Satoshi's avatar!

Quote from: Biodom on June 11, 2014, 03:15:17 PM

Quote from: FlensGold on June 11, 2014, 02:46:50 PM

Well, I do not have one specific out of service blade. It does not matter which 9 blades are inserted. But when I insert all 10 blades the miner turns off. I tested it with different cards which I put aside...

this is a new one...so there is something in the software/hardware that limits power usage so PSU does not burn out?
I cannot fix my problem and your problem does not look fixable as well.

I honestly think that bitmain should have market this as a 0.9TH miner and have ONLY 9 boards plus BB in each. Sometimes I think that one hashing board is too close to BB and its heat might be affecting things. The tricky question is whether to put a board with heaviest or lightest heat sink near the BB. For me heaviest, strangely, worked the best so far.

I had this same problem, it was the psu, seems it was slowly giving up. Bitmain replaced the psu with a new one and it's working fine since.

Gogreen

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Activity: 392

Merit: 250

Quote from: Und3rd0g on June 12, 2014, 10:56:52 PM

Quote from: ?? on ??

I have one S2 $400 coupon that I will not be using. PM me if interested.

Gogreen, you were the first to ask so you got it. Happy mining.

many thanks to you , yea you too

Topic: ANTMINER S2 Discussion and Support Thread - page 47. (Read 355892 times)