so just to check
if we update the firmware on our dragons we can under and over clock them ?
and also which version of the firmware allows us to do this
The original was 5 blade it is possible to be overclocked more the the later generations of 1T's. Most are not suggested to overclock. The 4 blade 1T (which is most of the 1T dragons) is suggested not to overclock much on frequency. You can under clock them both though and try to save electricity. The 1.5 is a new ball game we will see what all can be done most likely soon.
Old versions were able to do it from SSH. Not sure what version that is, looks new. Over clocking does void warranty though.