OK, but if temp. is stable at 58C did the hashrate increase then? How much?
I replaced only the fan to a Noctua at my NerdQAxe to have it really silent with 600 MHz / 1.220V at 40% speed, did not replace the heatsink yet.
Discussion
No clocks are the same, it’s running more quiet and is exhausting the heat differently. The idea is not to overclock or anything but rather to see how such a heatsink dissipate heat compared to the other