Additional GPU added, hiveOS sees but not hashing

I just added a second GPU (NVIDIA GeForce GTX 980 4GB) to my MB mining rig which HiveOS sees, ETC flight sheet created & launched but it’s not hashing, any ideas anyone? Thanx

If I recall, the Ethereum DAG size exceeds 4GB, so I don’t think that your GTX 980 4GB will work for mining ETH.