Just trying to wrap my brain round this?.... A few thoughts.

So 75C chip temperature (Junction temperature?) is not that high and as has been said should not be confused with a temperature measured on the case of the chip or on  the circuit board (as in an Antminer). However I would regard ambient as being yet another temperature to get confused with?

So does this imply that the ASIC's have a built in temperature sensor? If so then yes you would expect to run at a higher temperature than if there is a separate sensor on the circuit board.

However what I do not understand is the concept that "the chip needs to run at 75C for optimal efficiency" I could understand if this meant not higher than 75C but why would it matter if the temperature was lower than this? I have always understood when it comes to chips that colder is better?

So putting all of that to one side for the moment we are next told "When it gets too cold you get a high error rate.  If you want to verify just set  your fan to min 80% and your hash rate will drop to about 3.0T" Now that would first imply that during warm up there is a high error rate and that the system would somehow have to allow for this?

So coming now to turning the fan to 80% and the hash rate dropping. Question for me is does the hash rate drop because the firmware just turns the frequency down when you turn the fan up or does the HW error rate actually go up and then the frequency is turned down to reduce the HW error rate?

Again I am finding this confusing. Surely if the chip gets a bit cold and the frequency is then turned down the chip will then run even colder because of the reduced frequency and is just going to keep going down and down?


All very strange and confusing to me, hopefully the full and true story will emerge at some point?


Rich