The distance to the top ist a little bit smaller than 40mm, so I was not able to just make it stand on the pcb, I had to tilt it a little bit to the site to make it fit. I have no photo currently available about the fix, but I mounted it just on the site of the pcb. Thus, I wanted to know if anybody of you has tweaked the device or can recommand a 2400rpm fan which is much less noisy. All tested fans have not been able to keep the temperature below critical threshold (enclosure and chip). I have tested ARCTIC F9 - 92 and the Noctua FLX 92mm as well with even worse results. I have tested that fan and it is not capable of cooling the new unit. On page 2 cfs.matttests several fans and went with the GELID Solutions FN-FW09-20-B 92MM. I have found an old thread which is dealing with the first generation R4 device: And if the devices is under heavy I/O, it goes up to 3200rpm. But with the Pegasus32 R6 the fan keeps almost spinning at 1900-2400rpm all the time. My old units have been very quiet (not annoying at all). However, I am quite shocked with the noise of the new unit. I have upgraded from 2x Pegasus2 R4 devices (5400rpm drives) to 1x Pegasus32 R6 device (5400rpm drives).

Promise pegasus2 r6 review