Author

Topic: Antminer S7 yellow fan wire cut? (Read 188 times)

newbie
Activity: 3
Merit: 0
January 10, 2018, 03:01:04 AM
#4
Blue and yellow were switched  Huh

It's running fine, so I'm not going to worry about it.
newbie
Activity: 3
Merit: 0
January 09, 2018, 08:49:17 PM
#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?
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
January 09, 2018, 08:40:56 PM
#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.
newbie
Activity: 3
Merit: 0
January 09, 2018, 07:34:18 PM
#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?
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