try and keep it under 80c
put in a cooler room,
if you are overclocking lower the frequency,
more fans
put in a cooler room,
if you are overclocking lower the frequency,
more fans
If did some checking and 2 modules are fine and 2 modules are constantly around 70 - 80 degrees. Room is not the point, as the other Jupiter is in normal temperature level. No overclocking.