Hi there. I have bought some S7 Antminers from
www.bitmart.co.za and they have this whistling sound that is tearing through your brain like a chainsaw. the only way i can prevent the whisteling sound is if i stick tape on the grid to try and restrict the airflow a little. Anyone else have this issue? what else can i do?
Yeah, mine does that when the fans are spinning close to max. I set my fans manually to a more pleasant % setting, watching temps of course. Got some other fans I'll be swapping out - was able to get my s5 to quiet down considerably, I'm pretty hopeful the same can be done with the 7's!