Bitcoin Forum
September 23, 2018, 03:10:16 PM *
News: ♦♦ New info! Bitcoin Core users absolutely must upgrade to previously-announced 0.16.3 [Torrent]. All Bitcoin users should temporarily trust confirmations slightly less. More info.
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Antminer S7 yellow fan wire cut?  (Read 61 times)
j1772upnp
Newbie
*
Offline Offline

Activity: 3
Merit: 0


View Profile
January 10, 2018, 12:34:18 AM
 #1

A used S7 showed up in today's postage. I haven't brought it home to play with it yet, but immediately noticed the front fan's yellow wire is cut.

I read this defaults the fan to run 100%, but I was curious if a cut wire is indicative of mistreatment elsewhere? Would you recommend patching the wire, or just let it be?
1537715416
Hero Member
*
Offline Offline

Posts: 1537715416

View Profile Personal Message (Offline)

Ignore
1537715416
Reply with quote  #2

1537715416
Report to moderator
1537715416
Hero Member
*
Offline Offline

Posts: 1537715416

View Profile Personal Message (Offline)

Ignore
1537715416
Reply with quote  #2

1537715416
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1537715416
Hero Member
*
Offline Offline

Posts: 1537715416

View Profile Personal Message (Offline)

Ignore
1537715416
Reply with quote  #2

1537715416
Report to moderator
sidehack
Legendary
*
Offline Offline

Activity: 1820
Merit: 1151

Curmudgeonly hardware guy


View Profile
January 10, 2018, 01:40:56 AM
 #2

Only if it's wired up wrong would that work. Blue is PWM, which disconnecting that defaults to 100% speed. Yellow should be tach, which if the controller doesn't see a signal on the tach line it won't know there's even a fan attached and it'll probably not want to work. Unless it's been flashed with one-fan firmware.

j1772upnp
Newbie
*
Offline Offline

Activity: 3
Merit: 0


View Profile
January 10, 2018, 01:49:17 AM
 #3

Thanks. Any danger in wiring it up and seeing what it does? The wire is most definitely a clean cut... Why would someone do that?
j1772upnp
Newbie
*
Offline Offline

Activity: 3
Merit: 0


View Profile
January 10, 2018, 08:01:04 AM
 #4

Blue and yellow were switched  Huh

It's running fine, so I'm not going to worry about it.
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!