|
Title: Antminer S7 yellow fan wire cut? Post by: j1772upnp on January 10, 2018, 12:34:18 AM 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? Title: Re: Antminer S7 yellow fan wire cut? Post by: sidehack on January 10, 2018, 01:40:56 AM 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.
Title: Re: Antminer S7 yellow fan wire cut? Post by: j1772upnp on January 10, 2018, 01:49:17 AM 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?
Title: Re: Antminer S7 yellow fan wire cut? Post by: j1772upnp on January 10, 2018, 08:01:04 AM Blue and yellow were switched ???
It's running fine, so I'm not going to worry about it. |