does it not mean BMR .BAD MACHINE RETURN. api board is probably non funktionining, i have those BRM marked they dont work..
Not sure about what BMR actually means, I had 3 batch 1 Titans and all of them had BMR stamp on the controller. This one is no different which I bought separately as a spare. I don't have Titans anymore which I sold last month, as of last month it was working and still accessible through web interface. Heavy duty bridge is an extra bonus which I bought for .5 BTC alone.