Re: BITMAIN Antminer support and OverClocking thread

Quote from: goxed on November 27, 2013, 02:38:14 AM

This thread is for support related discussions of the BITMAIN Antminer S2 hashing device

How to overclock your miner to 400MHz / 205GH/s. My suggestion is to clock them at 375. 400 is a bit too harsh on the voltage regulator.
All clock speeds including 375MHz work on both revision of boards.

The miner will draw 500 - 525Watts at the wall (110V mains) after this setting

A) ssh into your miner

B) edit the following file
/etc/config/asic-freq

C) change timeout to 36, freq_value to '0780', 'chip_freq' to 400.
For miners with build date 2013/11/4

Code:

root@antMiner2:/etc/config# vim asic-freq

package 'cgminer'

config 'asic-freq' 'default'
   #option 'freq_value' '0780' #400M

#option 'freq_value' '4e81' #375M
#option 'chip_freq' '375'
#option 'timeout' '37'

   #option 'freq_value' '4d81' #350M
   #option 'chip_freq' '350'
   option 'timeout' '36'
   #option 'freq_value' '4c81' #325M
   #option 'chip_freq' '325'
   option 'freq_value' '0780' #350M
   option 'chip_freq' '400'
   #option 'freq_value' '0580' #300M
   #option 'chip_freq' '300'
   #option 'freq_value' '0981' #250M
   #option 'chip_freq' '250'
   #option 'freq_value' '4f02' #190M
   #option 'chip_freq' '190'

For miners with build date 2013/11/18

Code:

package 'cgminer'

config 'asic-freq' 'default'
   option 'freq_value' '4f81' #400M
   option 'chip_freq' '400'
   option 'timeout' '35'

   #option 'freq_value' '4e81' #375M
   #option 'chip_freq' '375'
   #option 'timeout' '37'

   #option 'freq_value' '4d81' #350M
   #option 'chip_freq' '350'
   #option 'timeout' '40'

   #option 'freq_value' '4c81' #325M
   #option 'chip_freq' '325'
   #option 'timeout' '40'

   #option 'freq_value' '0b81' #300M
   #option 'chip_freq' '300'
   #option 'timeout' '45'

   #option 'freq_value' '0981' #250M
   #option 'chip_freq' '250'
   #option 'timeout' '55'

   #option 'freq_value' '0781' #200M
   #option 'chip_freq' '200'
   #option 'timeout' '70'

   #option 'freq_value' '4f02' #193M
   #option 'chip_freq' '193'
   #option 'timeout' '70'

How to RESET your OpenWRT card in case of an unresponsive miner

Please follow the steps in the instruction manual provided by BITMAIN below.
https://github.com/AntMiner/AntGen1/blob/master/manual/AntMiner%20FAQ.pdf?raw=true
https://github.com/AntMiner/AntGen1/tree/master/manual

Please donate if it works for you: 1FrW5ka9CRVWdL9EM4Jut9eHWU1a1biyy5

Hi Guys,
some data to overclocked miner S1. they are not running 500 Watts, i dont know who sayed this wrong informations. i have 23 S1 and overclocked all to "400". there are no problems, even some of them just have 430 Watts of PSU. 23 Pcs. are running in exactly 9,2KW per hour at maximung consuption (peak)!
next, how eays to overclock them.

using "putty"
ssh into your miner with ip adress
then : vi /etc/config/asic-freq
next: press "i"
next: bash the "350" config s and delete the # on "400" settings
next: press Esc
next: write "wq" followed by "enter"
next: "y" and enter
next: reboot

thats all, thats how it works to me. be aware of temperatures. if you are running near 55degrees you have to install seconf ventilation. mine are runnig between 41 (lower groudn) and 53 on 2meter high. ambiente temps are max 22 degrees. hope i could help a bit.
if you like it and it works to you, please donate to :
12fcXeMqGDMYjjZix2XXZXxLX7di2LZyDv

thanks and happy mining Grin