Received the "Feb 20 shipping" S9 miner yesterday....
I know you are all going to laugh, but this thing MAKES A REAL LOUD NOISE. It is unbelievable!!! Had I known....
Can somebody confirm whether it is "normal" that the fans run at about 4200rpm with an ambient of round 25C. Hash boards are at 77C and 83C hashing away at 4690 and 4680 Gh/s. There is a high pitched whistling sound.