I have no problem running these cards manually, but want to properly use auto-switching...
ALL whats needed in case of cryptonight from NH is allowing -dmem 0 ... or some way to use older Claymore miner :S
USE EXTERNAL MINING MANAGEMENT SOFTWARE--
There are several, I don't use them. There are SGminer algo-switching configurations, but I believe that they are deprecated on NiceHash, and use the classic version of SGminer rather than SGminer-GM. The example scripts were available on the classic NiceHash website. Many of the algorithms within the examples have become ASIC-only, no longer profitable for GPU mining.
The AMD cards may be phased out of NHM and NHML. --scryptr
P.S. There is an example configuration script for CryptoNight using SGminer-GM posted less than a page back in this thread. --scryptr