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Topic: [Guide] Dogie's Comprehensive Bitmain AntMiner S2 Setup [HD] - page 17. (Read 63123 times)

legendary
Activity: 1666
Merit: 1185
dogiecoin.com
Hey guys, I have a quick question regarding the boards in the S2.  I have one card that needs to be removed to RMA back to Bitmain, and was hoping someone here has done the math on which card slot the chain #1 card coincides with.  Is chain 1 closest to the PSU in the unit, or is it furthest from the PSU?

Cheers.
I believe its the one furthest away as that's always the hottest card.
Pug
member
Activity: 65
Merit: 10
hero member
Activity: 918
Merit: 1002
Hey guys, I have a quick question regarding the boards in the S2.  I have one card that needs to be removed to RMA back to Bitmain, and was hoping someone here has done the math on which card slot the chain #1 card coincides with.  Is chain 1 closest to the PSU in the unit, or is it furthest from the PSU?

Cheers.
hero member
Activity: 616
Merit: 500
I got Satoshi's avatar!
And now it is working... all I did was disconnected beaglebone from board and put it back... i really do not understand why are this things happening...
I'd noticed you'd upgraded the power supply, so figured it was possibly something that came loose during the process... glad it's working Smiley
sr. member
Activity: 461
Merit: 250
And now it is working... all I did was disconnected beaglebone from board and put it back... i really do not understand why are this things happening...
sr. member
Activity: 461
Merit: 250
Cables are ok because everything worked fine, screen is blank and device is not accessible... i made card again and it did not worked... i have one knc here and i will try to change the beagles to see if it is going to work. If someone have any idea please share it Cheesy Thanks
hero member
Activity: 616
Merit: 500
I got Satoshi's avatar!
Yes I tried that also... with old cards and with new one same thing... I think now that problem is somewhere in beagle or in my network...
Then I'd say check all the cables are firmly inserted... if the screen stays blank, then it must the the beagle as you say, or the card. If there was a problem with your network it would still boot up.
sr. member
Activity: 461
Merit: 250
Yes I tried that also... with old cards and with new one same thing... I think now that problem is somewhere in beagle or in my network...
hero member
Activity: 616
Merit: 500
I got Satoshi's avatar!
Hello, I have strange problem with my s2. It worked like a charm and then started to make problems... I switched PSU for 1200W FSP and even microSD card with new 4GB Samsung. I tried with all boards and with one board and S2 is still not hashing.

No matter what I do my S2 only spin fans on max rpm and I can not access it via browser.

Any suggestions?
That sounds like a SD card problem... try re-imaging it, or try the old one again...
legendary
Activity: 1666
Merit: 1185
dogiecoin.com

Running a couple S2's in a hot basement. The Enermax power supplies would randomly shut down after several hours. I couldn't be bothered to buy AX1200i's so I just lowered the clock to 175 Mhz by changing /config/asic-freq.config.

Code:

You get better W/gh if you keep it in, saves about 100w
  option   'freq_value'   '0681'  #175M
  option   'chip_freq'    '175'
  option   'timeout'      '40'

Getting 890 GH/s with around ~940W draw at the wall. Small price to pay for no more random shutdowns.
I'd suggest rather pulling a card, it still runs at 900GH/s... that way, you have one spare card per machine  Smiley
sr. member
Activity: 461
Merit: 250
Hello, I have strange problem with my s2. It worked like a charm and then started to make problems... I switched PSU for 1200W FSP and even microSD card with new 4GB Samsung. I tried with all boards and with one board and S2 is still not hashing.

No matter what I do my S2 only spin fans on max rpm and I can not access it via browser.

Any suggestions?
hero member
Activity: 616
Merit: 500
I got Satoshi's avatar!
Running a couple S2's in a hot basement. The Enermax power supplies would randomly shut down after several hours. I couldn't be bothered to buy AX1200i's so I just lowered the clock to 175 Mhz by changing /config/asic-freq.config.

Code:
 option   'freq_value'   '0681'  #175M
  option   'chip_freq'    '175'
  option   'timeout'      '40'

Getting 890 GH/s with around ~940W draw at the wall. Small price to pay for no more random shutdowns.
I'd suggest rather pulling a card, it still runs at 900GH/s... that way, you have one spare card per machine  Smiley
donator
Activity: 1617
Merit: 1012
Running a couple S2's in a hot basement. The Enermax power supplies would randomly shut down after several hours. I couldn't be bothered to buy AX1200i's so I just lowered the clock to 175 Mhz by changing /config/asic-freq.config.

Code:
 option   'freq_value'   '0681'  #175M
  option   'chip_freq'    '175'
  option   'timeout'      '40'

Getting 890 GH/s with around ~940W draw at the wall. Small price to pay for no more random shutdowns.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
It still looks as if ~ 50% of all shares are lost? am i wrong?
73,000 of 1,300,000 = 5%. Its just on slush's that its bad, its a bad pool.
legendary
Activity: 2763
Merit: 1184
It still looks as if ~ 50% of all shares are lost? am i wrong?
legendary
Activity: 2763
Merit: 1184
So everything looks normal?  I just am not used to seeing so many discards and rejects compared to previous miners.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
so is there a solution to all the rejected rates peple are getting?

Is there a way to sort of staalize it to send more accepted shares that dont get rejected?

thanks!
Whats happening with yours? Upload a screenshot of status please.

Here are 2 screensshots, if you can figure out what I can do to get this improved that would be very helpful.

Thanks!

http://i.imgur.com/Jms9lGx.jpg
http://i.imgur.com/rLUKlly.jpg
Discarded is fine, those are difficulty ONE discard shares you're comparing against difficulty 1024 shares. Compare discards against DiffA.
legendary
Activity: 2763
Merit: 1184
so is there a solution to all the rejected rates peple are getting?

Is there a way to sort of staalize it to send more accepted shares that dont get rejected?

thanks!
Whats happening with yours? Upload a screenshot of status please.

Here are 2 screensshots, if you can figure out what I can do to get this improved that would be very helpful.

Thanks!

http://i.imgur.com/Jms9lGx.jpg
http://i.imgur.com/rLUKlly.jpg
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
so is there a solution to all the rejected rates peple are getting?

Is there a way to sort of staalize it to send more accepted shares that dont get rejected?

thanks!
Whats happening with yours? Upload a screenshot of status please.
legendary
Activity: 2763
Merit: 1184
so is there a solution to all the rejected rates peple are getting?

Is there a way to sort of staalize it to send more accepted shares that dont get rejected?

thanks!
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