Apologies if off-site images are bad etiquette.


Set your multimeter to DC Voltage. This multimeter autodetects AC and DC voltage. Many multimeters require you to select AC or DC.

https://i.imgur.com/WRLMglT.jpg

Touch the multimeter probes on each side of the capacitor.

https://i.imgur.com/YBAf1Cq.jpg

Read the voltage on the multimeter's readout. ASIC N1 reads 0.7643 volts.

https://i.imgur.com/O8geaqV.jpg

Touch the probes on the second ASIC's capacitor.

https://i.imgur.com/EFw7opj.jpg

ASIC N0 reads 0.7490 volts.

https://i.imgur.com/vFdvI52.jpg

These measurements were taken with the trimpot in this position.

https://i.imgur.com/U1DY1ax.jpg

Turning the trimpot anticlockwise lowers the ASIC voltage.

https://i.imgur.com/ae02w0g.jpg

Lower voltage measured on ASIC N1.

https://i.imgur.com/pydVlRi.jpg


To reduce PCB flex and improve heat transfer from the ASICs to the heatsink I machined a small aluminium piece and attached heat transfer rubber insulator where the clamp presses against the back side of the PCB where the ASIC chips are located.

https://i.imgur.com/ECVY7Wz.jpg

Side view of the back side clamp, PCB, and heatsink.

https://i.imgur.com/nxPhgS2.jpg

cgminer running.

https://i.imgur.com/4IMz2PE.jpg