ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

fullzero

legendary

Activity: 1260

Merit: 1009

Quote from: jstew on January 17, 2017, 04:33:56 PM

anyways im working on a project to stick 9 s7 blades in a 4u s2 case with a dps4k psu setup, were can i get longer cables to connect the hash boards to the controler

A member was selling them last year; can't remember who. I think Phil bought some; he will probably remember if you ask him.

jackg

copper member

Activity: 2856

Merit: 3071

https://bit.ly/387FXHi lightning theory

Quote from: ?? on ??

wow this seems very powerful and also most power efficient miner in the market ... but i dont think the price is acceptable though.

The S9 variants are now the most efficient miners (as far as I know).

If you're interested, I have 8 s7 miners to redeem from HashNest (partners of bitmain) for (0.2BTC)+shipping. However, their quality might not be so good since they're second hand and they don't come with power supplies.

Sam02Sung

newbie

Activity: 40

Merit: 0

I just want to give some updates.
So my S7 works really well. I am very happy with it. I'm really sorry for you guys.

The use of power on the day of the fitst was 1172.6w frek 600 4841
two days later 1182.9w frek 600 4824
after a week 1186.5w frek 600 4844

Sackl

jr. member

Activity: 61

Merit: 4

Quote from: Jwells on September 11, 2017, 09:12:19 PM

thedreamer:
Were you able to hook up your EVGA 1300 to the Antminer S7 with the cables that came with the EVGA 1300 or did you have to purchase splitters? I cannot determine how to hook up my 1300 with only the cables that came with the PSU.

You could power the Hashboards with only two PCIe-Connectors attached.

Although the EVGA Cables are good Quality it´s your Responsibility.

HagssFIN

legendary

Activity: 2464

Merit: 1710

Electrical engineer. Mining since 2014.

Quote from: Breeze on April 09, 2018, 11:55:57 AM

Can i put a S9 hashboard in S7? Or is there too big difference in the controller boards?

The hardware design is not compatible with each other.

You can't put a S9 hash board in the S7.

Ei onnistu.

Breeze

newbie

Activity: 86

Merit: 0

Can i put a S9 hashboard in S7? Or is there too big difference in the controller boards?

Jwells

newbie

Activity: 5

Merit: 0

thedreamer:
Were you able to hook up your EVGA 1300 to the Antminer S7 with the cables that came with the EVGA 1300 or did you have to purchase splitters? I cannot determine how to hook up my 1300 with only the cables that came with the PSU.

jstew

sr. member

Activity: 469

Merit: 500

Quote from: HerbPean on January 18, 2017, 11:58:33 AM

Quote from: fullzero on January 17, 2017, 08:49:56 PM

Quote from: jstew on January 17, 2017, 04:33:56 PM

anyways im working on a project to stick 9 s7 blades in a 4u s2 case with a dps4k psu setup, were can i get longer cables to connect the hash boards to the controler

A member was selling them last year; can't remember who. I think Phil bought some; he will probably remember if you ask him.

I think I bought mine from Finksy in Canada.

thanks im going to scrap the project though , aparently hooking up that many blades to a single controller frys the controller , according to another s7 thread , i may still do it with 3x controllers with 3 blades per controller which would still be worthwhile for me as i could have 3x s7's in a nice rackmount case but the biggest thing would be it would be much much quieter , so i could run them at home when i retire them from my data center

HerbPean

legendary

Activity: 1638

Merit: 1005

Quote from: fullzero on January 17, 2017, 08:49:56 PM

Quote from: jstew on January 17, 2017, 04:33:56 PM

anyways im working on a project to stick 9 s7 blades in a 4u s2 case with a dps4k psu setup, were can i get longer cables to connect the hash boards to the controler

A member was selling them last year; can't remember who. I think Phil bought some; he will probably remember if you ask him.

I think I bought mine from Finksy in Canada.

jstew

sr. member

Activity: 469

Merit: 500

Quote from: Rabinovitch on January 15, 2017, 10:50:46 PM

This weekend I set up a few S7s and found 3 of them with the same symptoms. Each of them starting to mine but the red led is flashing on their controllers. And after about 1.5 minutes the hashrate is falling gradually to zero.
In web-interface I see that S7s are rotating only one fan of two connected and it seems that they are able to detect the rotation of the second fan (it rotates due to airflow of the "working" fan). I tried to change the fans, to connect the fans to different connectors on S7's I/O board without any effect. On one of these S7s I flashed latest available suitable firmware - also wothout any effect.

Has anyone encountered this problem? Is there any way to fix it?

i have one s7 that does this sort of , it hashes just fine , pool side hash shows correctly , but the red led flashes every few seconds. ive even tried reflashing the firmware and it still does it

anyways im working on a project to stick 9 s7 blades in a 4u s2 case with a dps4k psu setup, were can i get longer cables to connect the hash boards to the controler

dmwardjr

legendary

Activity: 1302

Merit: 1318

Technical Analyst/Trader

Quote from: Rabinovitch on January 15, 2017, 10:50:46 PM

This weekend I set up a few S7s and found 3 of them with the same symptoms. Each of them starting to mine but the red led is flashing on their controllers. And after about 1.5 minutes the hashrate is falling gradually to zero.
In web-interface I see that S7s are rotating only one fan of two connected and it seems that they are able to detect the rotation of the second fan (it rotates due to airflow of the "working" fan). I tried to change the fans, to connect the fans to different connectorson S7's I/O board without any effect. On one of these S7s I flashed latest available suitable firmware - also wothout any effect.

Has anyone encountered this problem? Is there any way to fix it?

I had 6 x S7's out of 34 do this. That's one reason of several WHY I stopped buying shit from Bitmain. 30 days warranty just isn't cutting it. If they can take advantage, they do so.

EDIT: So, I sold all my shit back in February last year and began GPU mining.

Rabinovitch

legendary

Activity: 2030

Merit: 1076

A humble Siberian miner

This weekend I set up a few S7s and found 3 of them with the same symptoms. Each of them starting to mine but the red led is flashing on their controllers. And after about 1.5 minutes the hashrate is falling gradually to zero.
In web-interface I see that S7s are rotating only one fan of two connected and it seems that they are able to detect the rotation of the second fan (it rotates due to airflow of the "working" fan). I tried to change the fans, to connect the fans to different connectors on S7's I/O board without any effect. On one of these S7s I flashed latest available suitable firmware - also wothout any effect.

Has anyone encountered this problem? Is there any way to fix it?

aarons6

legendary

Activity: 1736

Merit: 1006

anyone have a tutorial on how to modify the firmware?

its initramfs..

so im guessing i can just gzip it with cpio?

edit the files and gzip it back up and flash it?

i want to add a scrip to init.d

edit that didnt work.. says its not a gzip format..

dmwardjr

legendary

Activity: 1302

Merit: 1318

Technical Analyst/Trader

Quote from: HerbPean on August 12, 2016, 11:53:44 AM

My S7 F1 were in a hosting facility and never got my hands on them. Apparently my version of the daughter board have ONLY ONE fan connector. This sucks big time, i bought a few fans and plate to upgrade them with two fans.

@Bitmain any solution about this disaster ?

Thanks

EDIT: I couldn't find any picture of that daughter board with only one connector. I saw picture with two connectors.

Good luck with that. I've been rather disappointed lately with the so called support of Bitmain. That's why I gave up and never bothered purchasing the S9. I'm hearing horror stories about the lack of support with the S9 as well.

Anyone who purchases an S7 now should not do so in my opinion unless you have FREE power. It's quite obvious Bitmain is selling all of the S7's in their farms and replacing them with S9's. It's only a matter of time before the S7 is obsolete.

I used to be a BIG fan of Bitmain. I refuse to support them any longer with their endeavors to take advantage of people.

EDIT: Look at the network hash rate on bitcoin wisdom. You see a lot of S7's going off line at Bitmain farms and the difficulty going down. S9's are being added to their farms now. Hence, the difficulty rising again.

Sierra8561

sr. member

Activity: 546

Merit: 253

Quote from: DickyDck on July 26, 2016, 05:29:36 PM

Quote from: aarons6 on July 26, 2016, 05:22:07 PM

Quote from: DickyDck on July 26, 2016, 05:18:37 PM

Does the unit need to see FAN RPMS from 2 fans?

yes..

there is a one fan rom.. but im not 100% sure you can flash it on regular s7s or not.

im sure someone has tried so they can chime in saying if it worked or not.

Thanks for the super quick reply! Sooo, if I plug in a bunch of old S3 fans perse, and it recognizes RPMs, you think that would successfully trick it?

I've done it and it works fine. But still attempt at your own risk!

HerbPean

legendary

Activity: 1638

Merit: 1005

My S7 F1 were in a hosting facility and never got my hands on them. Apparently my version of the daughter board have ONLY ONE fan connector. This sucks big time, i bought a few fans and plate to upgrade them with two fans.

@Bitmain any solution about this disaster ?

Thanks

EDIT: I couldn't find any picture of that daughter board with only one connector. I saw picture with two connectors.

DickyDck

member

Activity: 82

Merit: 10

Quote from: aarons6 on July 26, 2016, 05:22:07 PM

Quote from: DickyDck on July 26, 2016, 05:18:37 PM

Does the unit need to see FAN RPMS from 2 fans?

yes..

there is a one fan rom.. but im not 100% sure you can flash it on regular s7s or not.

im sure someone has tried so they can chime in saying if it worked or not.

Thanks for the super quick reply! Sooo, if I plug in a bunch of old S3 fans perse, and it recognizes RPMs, you think that would successfully trick it?

elokk

hero member

Activity: 723

Merit: 519

I did not provide a power supply.

I requested pictures and he sent back pictures of an s7 with the bitmain 1600w psu connected, maybe a video showing the the psu running while wired to the s7 would be better to have . I have a feeling he decided he did not want it, trying to return a different fried s7, or possibly bought another one cheaper because the price did drop after he purchased from me. Amazon buyers are always scamming sellers of mining equipment

aarons6

legendary

Activity: 1736

Merit: 1006

Quote from: elokk on July 26, 2016, 04:49:50 PM

Is there any way to identify the batch number based off the serial number listed on the sticker on top of the controller? I sold one of my s7's on Aamazon, took offline and shipped in an hour or so then the guy emails me once he received it claiming it was "dead on arrival"

did you ship the power supply with it or did he supply his own?

if he used his own he might have tried some cheap crappy ones and blew it up.

or if you gave him a bitmain power supply he might not have 220.

aarons6

legendary

Activity: 1736

Merit: 1006

Quote from: DickyDck on July 26, 2016, 05:18:37 PM

Does the unit need to see FAN RPMS from 2 fans?

yes..

there is a one fan rom.. but im not 100% sure you can flash it on regular s7s or not.

im sure someone has tried so they can chime in saying if it worked or not.

Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH (Read 528055 times)