ANTMINER S2 Discussion and Support Thread - page 34.

Zelek Uther

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Run a Bitcoin node.

Quote from: Zelek Uther on June 14, 2014, 11:57:16 PM

Oh crap, my batch 2 AntMiner S2 stopped working today, after 3 months of solid service.

We had a power outage, and after the power came back on the S2 was "dead". It wouldn't power on at all. I replaced the Enermax 1000W PSU with a Corsair AX1200i and the unit now powers up, but nothing shows on the LED screen and the unit doesn't register on the network. I know what the MAC address of the unit is and it doesn't show up on the network. I have tried two different micro-SD cards, neither of them work.

Not happy. Sent an email to Bitmain, hopefully they can help me out.

I received a new controller board from Bitmain, installed it, and my S2 is working now. Whew!

Funny thing, the Enermax 1000W PSU will not power up the S2 any more, I tried. I have swapped the Enermax for a Corsair AX1200i to get the S2 running. Bizarrely the Enermax still works on my S1! Strange that it will power the S1, but not the S2 any longer, even though it previously powered the S2 for two months straight (correction to my previous post, two months of solid service, not three).

A lesson for me out of this: the Enermax PSU acts differently from all my other PSUs. After a power outage, it won't come back on immediately (I assume this is only if it has been under full load), it seems to want to wait for quite a few minutes before it will power on again. Whereas all my other PSUs turn on immediately after a power outage. I have this feeling that if I had just left my S2 alone after the power outage, everything would have been ok - the Enermax would have eventually powered up in its own time.

Und3rd0g

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Looking for an S2 coupon. Offering .1 BTC. PM me if you have any available.

R4v37

sr. member

Activity: 266

Merit: 250

my S2 jumping from 850-1050 GH/s
well, at least its not diving down below 800 Cheesy

hope for the upgrade of S2

sepehr

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Activity: 399

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Cryptocurrency Evangelist

Quote from: bcollan on June 24, 2014, 11:25:06 PM

I offer 0.1btc donation for 1 s2 coupon expiring june 26/27.

Deal!
Let me have your ID.

bcollan

member

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I offer 0.1btc donation for 1 s2 coupon expiring june 26/27.

TracerX

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Quote from: navigator on June 24, 2014, 03:30:32 PM

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011

EVGA 1300 for $150 after rebate. Might pickup one for my recently received S2.

Is anyone's S2 hashrate stable? Mine is kinda jumping around 900-1000gh. Averages upper 900's. I think it's because of the PSU.

One card has a faulty temp sensor and stuck at 127. I think I saw a post about that but can't find it. Is there a solution? Should I try reseating it over and over til it might work? That same blade is one that came up as not working a few times. I might remove that blade anyway to see if it's more stable because of the PSU.

Mine is still not stable, no matter what I've tried. It clocks down to the low 900's after a reboot in a 24 hour period, although it stayed at around 980 for about three days once. Compared to the S1, the S2 is a fickle beast. I'm hoping the upgrade cards will bring stability, but you don't know until you know.

Let us know how long yours stays stable on that reboot, please sir!

navigator

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Quote from: s1gs3gv on June 24, 2014, 08:54:04 PM

Quote from: navigator on June 24, 2014, 03:30:32 PM

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011

EVGA 1300 for $150 after rebate. Might pickup one for my recently received S2.

Is anyone's S2 hashrate stable? Mine is kinda jumping around 900-1000gh. Averages upper 900's. I think it's because of the PSU.

Mine are stable and on spec, and have been from day 1. I put an EVGA 1300 in one when i was doing some OC experiments and it didn't make any difference. They run fine with the stock PSU. The EVGA 1300 is a nice PSU to run 3 x S1 on, but don't waste your money upgrading the S2. Focus on ROI before the network goes ballistic.

Cool. Its running better after a recent restart avg'ing 1000 now instead of 975. I don't like wasting money either. That's why I took off some extra exhaust fans I added to some S1's cause it was pointless. The miner hashes the same at 50c and 60c so adding a 10w fan seems kinda dumb. I break even faster by not buying extras.
The S2 is an upgrade for 5 of my S1's that I will sell. I can mine with everything for a few weeks then sell 5 S1's and I will be broken even on the S2 and making profit again.

Swimmer63

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Same here - I could use on S2 coupon and will pay. PM me please.

s1gs3gv

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ex uno plures

Quote from: navigator on June 24, 2014, 03:30:32 PM

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011

EVGA 1300 for $150 after rebate. Might pickup one for my recently received S2.

Is anyone's S2 hashrate stable? Mine is kinda jumping around 900-1000gh. Averages upper 900's. I think it's because of the PSU.

Mine are stable and on spec, and have been from day 1. I put an EVGA 1300 in one when i was doing some OC experiments and it didn't make any difference. They run fine with the stock PSU. The EVGA 1300 is a nice PSU to run 3 x S1 on, but don't waste your money upgrading the S2. Focus on ROI before the network goes ballistic.

TwoPints

newbie

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Looking for 2 S2 coupons. Paying .05 BTC each. Send me a PM and we can do business. Thanks!

Biodom

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Quote from: fhh on June 24, 2014, 04:15:31 PM

Quote from: Biodom on June 24, 2014, 03:11:26 PM

fantastic! I am not familiar with the beaglebone black hardware format, but on pictures it looks much smaller than the one in S2.
I see USB, microUSB, 5V and Ethernet ports on pictures plus two multipin ports (for ribbon connectors?).

Did you power it through USB/micro USB and then connected to miner by the ribbon connector?

Thanks. I want to see if I can build S2 or S2-lite from parts.

the BBB in the S2 is exactly the same format as original. its only missing the USB ports and 5V

What you see in the S2 in the middle of the mining cards is an additional controller card.
the BBB is directly plugged onto this card with its multipin ports.
you can "easily" unplug the BBB

if you want to build a S2 you have to rebuild this card (as I think) or get it anywhere else

I see...I wasn't expecting another controller card (I thought that what is in the middle is actually BB because that's was where the microSD was).
This gets more complicated...thanks

fhh

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Quote from: Biodom on June 24, 2014, 03:11:26 PM

fantastic! I am not familiar with the beaglebone black hardware format, but on pictures it looks much smaller than the one in S2.
I see USB, microUSB, 5V and Ethernet ports on pictures plus two multipin ports (for ribbon connectors?).

Did you power it through USB/micro USB and then connected to miner by the ribbon connector?

Thanks. I want to see if I can build S2 or S2-lite from parts.

the BBB in the S2 is exactly the same format as original. its only missing the USB ports and 5V

What you see in the S2 in the middle of the mining cards is an additional controller card.
the BBB is directly plugged onto this card with its multipin ports.
you can "easily" unplug the BBB

if you want to build a S2 you have to rebuild this card (as I think) or get it anywhere else

nottm28

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Activity: 574

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Quote from: Leetpro on June 24, 2014, 02:22:02 PM

Quote from: nottm28 on June 24, 2014, 02:05:45 PM

Quote from: MikeMike on June 24, 2014, 01:37:34 PM

Quote from: Leetpro on June 24, 2014, 01:23:10 PM

Quote from: MikeMike on June 24, 2014, 10:28:12 AM

Quote from: Leetpro on June 24, 2014, 10:23:10 AM

Hey Im looking for a $400 coupon, willing to pay 0.1btc for it, my bitmain username in Leetpro or inbox me, must expire 27th or later

can send one for the 27th
Is your username: Leetpro

Yes it is!

Coupon successfully sent.
Send the .1 donation you offered...

For a newbie with 9 posts - maybe you should have asked him to send the coins first...

Hey I did send the BTC 1st , everybody needs to start somewhere right ?

Well I take my hat off to you - thanks for joining the honest part of the community - I trust MikeMike will leave you uber positive feedback - then you are off the mark

TracerX

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Activity: 918

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Quote from: BeZerKaNZ on June 24, 2014, 03:31:20 PM

Quote from: BeZerKaNZ on June 24, 2014, 11:23:14 AM

Quote from: TracerX on June 24, 2014, 11:05:48 AM

Quote from: BeZerKaNZ on June 24, 2014, 10:42:41 AM

Has anyone had any experience with Bitmain RMA process? I sent 2 blades back over 3 weeks ago and havent heard anything. Ive dropped a few emails and no response.

I sent them an S2 blade back from the US, via their UPS account. Total travel time was about a week, and I had an email thread that they worked with me in a few times. Your situation doesn't reflect my experience.

Where did you ship from, and has the part made it back to them?

I sent it back from New Zealand to their China office. I used their account and ive emailed a contact person there, it took them about 10 days to apologize for the delay but doesnt bother answering my rma query, and that was 3 days ago.

Speak of the devil.... just got a reply with tracking number for returning parts but over 3 weeks is still a bit long.

I agree, but it may not be a trend just yet. Let us know how the new component fairs once you get it back.

BeZerKaNZ

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Quote from: BeZerKaNZ on June 24, 2014, 11:23:14 AM

Quote from: TracerX on June 24, 2014, 11:05:48 AM

Quote from: BeZerKaNZ on June 24, 2014, 10:42:41 AM

Has anyone had any experience with Bitmain RMA process? I sent 2 blades back over 3 weeks ago and havent heard anything. Ive dropped a few emails and no response.

I sent them an S2 blade back from the US, via their UPS account. Total travel time was about a week, and I had an email thread that they worked with me in a few times. Your situation doesn't reflect my experience.

Where did you ship from, and has the part made it back to them?

I sent it back from New Zealand to their China office. I used their account and ive emailed a contact person there, it took them about 10 days to apologize for the delay but doesnt bother answering my rma query, and that was 3 days ago.

Speak of the devil.... just got a reply with tracking number for returning parts but over 3 weeks is still a bit long.

navigator

sr. member

Activity: 362

Merit: 250

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011

EVGA 1300 for $150 after rebate. Might pickup one for my recently received S2.

Is anyone's S2 hashrate stable? Mine is kinda jumping around 900-1000gh. Averages upper 900's. I think it's because of the PSU.

One card has a faulty temp sensor and stuck at 127. I think I saw a post about that but can't find it. Is there a solution? Should I try reseating it over and over til it might work? That same blade is one that came up as not working a few times. I might remove that blade anyway to see if it's more stable because of the PSU.

Biodom

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Quote from: fhh on June 24, 2014, 02:50:05 PM

Quote from: dalenorman2005 on June 23, 2014, 03:55:34 PM

Quote from: Biodom on June 23, 2014, 12:30:00 PM

Have anybody tried regular Beaglebone black, rev B or C together with bitmain microSD card to control S2?
Did it work?

I tried an SD card with the bitmaintech firmware flashed on it and it booted successfully. i could access the web config for the miner and watch as it hashed at 0 ghs due to no asic's installed.

i have NOT tried replacing the BBB from bitmaintech with this one, though, so i can't really confirm that it works.

If anyone does, i too would love to hear about it. Like to know if my spare parts are usable as spares or not.

I can confirm that it works - I did it temporary Cool

fantastic! I am not familiar with the beaglebone black hardware format, but on pictures it looks much smaller than the one in S2.
I see USB, microUSB, 5V and Ethernet ports on pictures plus two multipin ports (for ribbon connectors?).

Did you power it through USB/micro USB and then connected to miner by the ribbon connector?

Thanks. I want to see if I can build S2 or S2-lite from parts.

samsonn25

hero member

Activity: 882

Merit: 1003

Quote from: arphon on June 24, 2014, 02:57:44 PM

Thread's title is showing shipping on june 26th. This was also the date on the site. Now site shows 27 june. Is there a quota they are trying to fill ??

specifications subject to change due to volatility of bitcoin Grin

arphon

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Thread's title is showing shipping on june 26th. This was also the date on the site. Now site shows 27 june. Is there a quota they are trying to fill ??

fhh

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Quote from: dalenorman2005 on June 23, 2014, 03:55:34 PM

Quote from: Biodom on June 23, 2014, 12:30:00 PM

Have anybody tried regular Beaglebone black, rev B or C together with bitmain microSD card to control S2?
Did it work?

I tried an SD card with the bitmaintech firmware flashed on it and it booted successfully. i could access the web config for the miner and watch as it hashed at 0 ghs due to no asic's installed.

i have NOT tried replacing the BBB from bitmaintech with this one, though, so i can't really confirm that it works.

If anyone does, i too would love to hear about it. Like to know if my spare parts are usable as spares or not.

I can confirm that it works - I did it temporary Cool

Topic: ANTMINER S2 Discussion and Support Thread - page 34. (Read 355820 times)