A very thermally limited run.

The old Ultra 120 Extreme (with one of the pipes punctured) + a single Enermax Magma fan are simply useless for this kind a load.
It idles at 40 (at best) in 26 celcius ambients and in the middle of the run the temperatures are close to 60 already.

The first two units (CU0 & CU1) can easily pass CB15 at 5.2GHz (1.43V), the third unit (CU2) 5.1GHz (1.43V) and the weakest fourth (CU3) unit 5GHz at <1.4V, despite the unoptimal temperatures.

In FX-9 series scale this a low leaking part, however on FX-8 series scale it would have extreme leakage rating.