set your miners freq lower if you are freq 700 set freq to 500 and set fan speed to 30
check your temps with freq 500 and fan speed at 30
if they are 60c-65c you are okay.
this will reduce your power use and reduce your hashing speed
you show freq 700 >>>>>>>>>>>>>> drop to 500
the fans are at 4000rpm = loud >>>>>>>> drop to 30% = 2800 rpm not bad
temps are 50c really good >>>>>>>> tell us what this goes to after 1 hour
if freq 500 and fan 30% is under 60c after 1 hour
try freq 512 and fan 30%
if freq 500 and fan 30% is 65c or higher
go to freq 500 and fan 35% ======
I set the freq to 650 and set fans to 70
Boards became cooler but the fans speed is still the same