Bitcoin Forum
May 11, 2024, 05:05:08 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Bitcoin Forum > Bitcoin > Mining > Mining support > Bitmain Antminer S7 - Modified Hash Board - Need help
Pages: [1]
« previous topic next topic »
  Print  
Author Topic: Bitmain Antminer S7 - Modified Hash Board - Need help  (Read 196 times)
irvinbitman (OP)
Newbie
*
Offline Offline

Activity: 2
Merit: 0


View Profile
December 28, 2017, 06:29:10 AM
 #1
I purchased 2 Antminer s7 from Hong Kong and the hash boards have some device on them.  I am hoping someone can shed some light on what these are and what they are meant to do.

https://preview.ibb.co/khTjMb/IMG_2737.jpg
https://preview.ibb.co/miQ9nG/IMG_2738.jpg
1715403908
Hero Member
*
Offline Offline

Posts: 1715403908

View Profile Personal Message (Offline)

Ignore
1715403908
1715403908
Reply with quote  #2
1715403908
Report to moderator
1715403908
Hero Member
*
Offline Offline

Posts: 1715403908

View Profile Personal Message (Offline)

Ignore
1715403908
1715403908
Reply with quote  #2
1715403908
Report to moderator
VPN's and Cloud Backups made simple. crowncloud.net
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
1715403908
Hero Member
*
Offline Offline

Posts: 1715403908

View Profile Personal Message (Offline)

Ignore
1715403908
1715403908
Reply with quote  #2
1715403908
Report to moderator
1715403908
Hero Member
*
Offline Offline

Posts: 1715403908

View Profile Personal Message (Offline)

Ignore
1715403908
1715403908
Reply with quote  #2
1715403908
Report to moderator
1715403908
Hero Member
*
Offline Offline

Posts: 1715403908

View Profile Personal Message (Offline)

Ignore
1715403908
1715403908
Reply with quote  #2
1715403908
Report to moderator
sidehack
Legendary
*
Offline Offline

Activity: 3318
Merit: 1848

Curmudgeonly hardware guy


View Profile
December 28, 2017, 01:02:06 PM
 #2
I would guess that's a regulator module replacing the onboard circuit which is responsible for providing node-level IO voltages to the top several sets of chips.
Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development - 200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs. Supporting the home miner community since 2013 - http://www.gekkoscience.com
fanatic26
Hero Member
*****
Offline Offline

Activity: 756
Merit: 560


View Profile
December 28, 2017, 11:35:29 PM
 #3
That is actually from bitmain. The original parts are on the top left corner of the hash board where the air intake is. As they didnt put epoxy over these parts to protect them they tend to corrode and die. That is the bypass fix. As usual sidehack is dead on in his guess.

I even have a bunch of leftovers, they were ordered straight through bitmain for board level repairs.
Stop buying industrial miners, running them at home, and then complaining about the noise.
Pages: [1]
  Print  
Bitcoin Forum > Bitcoin > Mining > Mining support > Bitmain Antminer S7 - Modified Hash Board - Need help
 « previous topic next topic »
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!