Its amazing what a quick removal of the fan grills can do for the nosie of a miner, or any PC for that matter. As air is pushed or pulled throw a small spaces it creates noise. Remove the obstructions and we reduce the noise

Here is the Innosilicon A4 Dominator with the Fan grill and rear grill removed. We see a drop of approx. 5db in the noise level and even a pitch change that makes it more compatible.  Its still loud but just not as annoying…….. but only just

A4 Dominator Noise with no Fan Grill
A4 Dominator Noise with no Fan Grill

 

But what does this do for our temps, more air flow must mean better temps and in this case it does. We can see a huge drop of approx. 7c just by removing the grills.

A4 temperature with no Grills
A4 temperature with no Grills

 

Note: With no grill be careful of small fingers. These fans will have your finger off!!!

A4 Dominator with no rear grill
A4 Dominator with no rear grill

 

A4 Dominator with no Fan Grill
A4 Dominator with no Fan Grill