HELP - My first Antminer S9 is reaching 81F ??????

[Dragonizer]

Hi

Just had a new S9 from latest batch and the temps range from 59 -81f !!

There is no way to adjust frequency, the temps on chain 2 are 71,74,81f

Is this OK, it's in a cold garage, plently of ventilation ?

Cheers

[HagssFIN]

Those are ok values and the unit is CELSIUS, NOT FAHRENHEIT.  81 Fahrenheit would be pretty cold temperature value for a miner, don't you think? 

[Dragonizer]

Those are ok values and the unit is CELSIUS, NOT FAHRENHEIT.  81 Fahrenheit would be pretty cold temperature value for a miner, don't you think? 

Wow, i presumed F as the temps were so high, i presume since they control their own freq then it would slow down at a certain temp, or be a variable frequency ?

[HagssFIN]

The autotune frequency setting is chip quality dependant and for cooling there is an automatic fan control.

105 C is the high limit, below that and you're fine.

[Dragonizer]

The autotune frequency setting is chip quality dependant and for cooling there is an automatic fan control.

105 C is the high limit, below that and you're fine.

Thank for the info, got another two on the way and need to find a way to 'rack' them. metal shelve them ?

I just have the Bitmain PSU alongside the miner and the cables are TIGHT !

Cheers Hag