[SOLVED] What should your fan speed be when your CPU is 50c

Solution
With most stock fan curves at @50°C you'd be looking at @50%-60% (pwm fan) of fans ability. If the fan maxes out at 1000 rpm, that'd be 500-600rpm. If the fan maxes at 3000rpm you'd be at 1500-1800rpm. So exact numbers are impossible to say without knowing the curve, fan, settings etc
With most stock fan curves at @50°C you'd be looking at @50%-60% (pwm fan) of fans ability. If the fan maxes out at 1000 rpm, that'd be 500-600rpm. If the fan maxes at 3000rpm you'd be at 1500-1800rpm. So exact numbers are impossible to say without knowing the curve, fan, settings etc
 
Solution
I'm not sure there's any set solution, It depends on the application if you know what I'm saying. There are so many different factors. It depends I suppose on the size of the device and processor and cooling system it has. 50 Celsius is getting a little warm for sure. What are the dimension of the cooling fan? and What type of cooling system do you have?