Its time to try a quieter fan on the A4 Dominator and after much searching I found one that may work. The standard Fans pass about 230CFM and that’s a lot of air so I needed to find something in the region. The best I could find was the Silverstone FHP141-VF High Pressure 140mm Fan.
The A4 actually has a 120mm fitting but this fan can be used with both 120 and 140mm brackets.
Fan Specs:
- 2000RPM
- 173CFM
- 0.32A / 3.84Watt (on the box) 0.45A (on the fan)
Based on the other fan tests I decided to use the fan in blow mode as this proved to give the best results. The Fan performed well and I could actually have a conversation in the room with out raising my voice. We see a dB level reduce to 65.4db, I could actually hear the PSU fan over the miner, we have a major improvement.
As there is not as much air flow as the standard fan the temps started to rise quickly but stabilized with a max temp of approx. 57c Ambient temp in the office was 25.5c
I feel you would need to place this setup in a cool area with the ambient temp not exceeding 30c or you could find the miner hitting 60c very quickly. If you have a cool area then this is a great mod to do.
