Hi, i also have some tital cube unused since 2017 with a control board. 10 or 12 cubes and some power supplies.
I retired long time ago and they are into boxes in a wherehouse (on first floor).

I don't know why you are seeking thouse ancient miners... 

I have a 6 cube setup at my office (UK), but not touched it in at least 2 years, so will see if I can get it running and get back to you with some speeds and die situation, not even sure if I can remember how to use it

I know there are quite a few dead dies, it arrived liked that so KNC shipped me extra cubes, hence why there are 6 cubes instead of 4, and it was slightly quicker than standard plus I'm sure I used GenTarkin's firmware on them which optimised the voltages and clocks.