We did a 15 bitfury miner design using the proprietary
'string' feature this ASIC has. In a string, all chips are
arranged in a series configuration and power is applied
accordingly. So instead of a low voltage/high current
power supply, a less exotic power source can be used,
driving down cost considerably and taking up less board
area.
The board measures 70 x 100 mm, is powered with 12 Volt
and has a USB interface. As no DC/DC converter is needed,
BOM costs can be well below $ 10 (ex. PCB and cooling).
Hashrate can be compared to conventional designs and
overclocking can be achieved by just increasing the supply
voltage within certain limits. Reported hashrate is with 12V8
power supply and with a 2A6 current.
Cooling for the prototype was done using a low-cost
CPU heatsink. Temperatures measured on the PCB were
in the 50..70 oC range.
intron & c-scape
Note: Some images were retouched to protect our IP.
Hope you understand.
