This project contains a circuit board, firmware and cgminer/bfgminer patch to get the new Avalon Gen2 ASICs (A3255Q48) hashing.
Board features:
- Very efficient (~90%) DC/DC converter to power the ASICs
- Adjustable voltage (0.85 - 1.25 V) to choose between efficiency and overclocking
- USB-Interface to connect to a host running cgminer or bfgminer
- TWI interface to chain multiple boards together
- 100% flat surface on the bottom side to mount a usual heatsink
- On-board temperature management
- Fan connector with rotation speed measurement and PWM-control
- Indicator LED to report USB-activity
- 4-layer PCB for optimal heat/current transportation
- Two board designs available: one for 10 and another for 16 ASICs
cgminer/bfgminer patch features:
- Reporting temperature, real ASIC frequency and fan-speed back to the host
- Control of ASIC frequency in a big range from 62.5 to 5000 MHz in smallest possible steps
- Control of a desired temperature
Get support:
- Forum thread
- # avalon2 on freenode IRC
Get a board:
Someone is selling some boards in the Forum thread soon.