This must sound stupid but I can't find a f*ckin clue anywhere, and I can't believe nobody has made this question before: how do you identify a specific gpu from 6 identical cards in a mining rig? The only thing special about this card is 10ºC more in GPU temperature. You can't tell it apart with your hand obviously. Is there any option in Claymore miner that can help with that?
1. If you have RX 480 sapphire nitro cards - you can control LED lights on each card with latest Sapphire Trixx
2. with any other card - just set zero or max RPM of cooling fans for awhile in MSI AB or what you use. Do this when mining is stopped.
RX480 LED controlling with Trixx won't help you in this case. (The order Trixx shows you isn't the order Claymore sees)