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skot
Open source ASIC Bitcoin miner hardware
the 5V input powers a number of things on the board. Should it be protected somehow?
voltages XP hashboard are 0.8V and 1.2V, not 0.8V and 1.8V like on the ultra
To save cost, complexity, and a unique component: - Pull fan PWM to 5V (board gets plugged in, fan goes to 100%) - Add additional level shifter (TXU0304 or TXU0202)...
modified max to usb type c now documents and readme files are not changed still need to be updated
Round the corners on footprints with a 10% corner radius for easier reflow and soldering 
While the PJ-036AH-SMT-TR has lots of stock on DigiKey, it's expensive ($1.01900 vs $0.62620), experiences issues during reflow where the 3rd leg does not make contact and has a large,...
From K1 in the discord; > PWM fan control is open drain those fans typically have internal pull-ups to 5V the EMC23xx series controllers are 5V tolerant for open drain...
https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=42BF472B95D37383 17A should be sufficient, changing to this buck should allow removal of INA260, DS4432U and EMC2101.
.. And move it to the backside. It needs to be 10V or greater