Sorry this is a little late but how many bad cores do you need before KNC will allow an RMA?

Was your ASIC completely dead before KNC would give you an RMA?

I have one ASIC with probably 15 bad cores which slows my hashrate...   

Or just live with it?

>>>As soon as the first report good numbers I'll go for it.
>>>Currently running stable on 3.8.2 with my 5/192 bad cores board, so I don't want to mess with it now.