I have successfully overclocked the FusionSilicon X2 (myr-groestl, blake2s, keccak) using V4 control boards. Hashrate is now up to 369 GH/s myr-groestl, 1.5 TH/s blake2s, 92 GH/s keccak - approximately $10/day at current prices.

There are two versions available, up to 23% increased hashrate at 860W draw (at the wall). Please contact me on discord - eureka#4339 - if you would like a copy of this firmware. No dev fee, send me a one time donation for unlimited installs of the firmware.