Please note that mining BTCV is not recommended currently, due to attack on the chain. Blocks are being rewritten by a malicious third-party. Only consider mining it if you can manage 800ph/s+
Update: BTCV mining is no longer available to the public due to coin code change, blockchain now only accepts blocks from certain addresses, which are not public pools. Please switch to other profitable coins on https://bsod.pw mining pool!