After last night overheating incident. I decided to speed up my quest to find a better power supply (quiet than my current Bitmain APW3), I had the suspicion that APW3 is way too much of a PSU for these FutureBit Appollo miners, at least in terms of noise levels but potentially on power too.

I am running two Apollo miners in our family room, the home thermostat is set to 68F (~20C) on central heating so the temperature is pretty constant all day and night. This afternoon after paying a visit to Fry's electronics store I got a Corsair RM 650x PSU, figure out how to jump start the ATX mother board signal and got the whole setup going. The noise levels are not only tolerable but insanely low compared with the APW3 previous setup.  The new PSU fan barely turns on due the threshold is around 230W and even loading the two Apollo miners it has not gone over that threshold at this time yet.

I will keep monitoring the Apollo miner that got overheated and definitely report back if it happens again. Currently this Miner is running at 67C and and MCU at 63C, sometimes the MCU temperature is higher than the sensor of the miner shows. The first Apollo miner I got is running cooler 65C and MCU 58C and I have not seen anytime when its MCU temperature is higher than the miner sensor, so for some reason my newest Miner MCU is running nominally warmer than the oldest one. If helps I can send the serial number on the boards so you guys can check on vendor's part batches.

I am hoping to get all my power and LAN setup work completed by end of this week and move the miners to a definitely cooler place, the garage should be between 32F and 40F, guess that will help with keeping the miners temperature pretty low, hope running close to Zero C is not going to be a problem.

I will check for the firmware upgrade!! Thanks everyone!
https://drive.google.com/file/d/0B59OjOFQHO2JaDFqM0JKQ01JdVVHNVVlcmJpckFDYXEzdUZz/view?usp=sharing