Question My bottom case fan starts up then stops

[CrillyWillyAU]

Hello, i have been having a problem with my bottom case fan. It has been starting up then stopping, i don't know if it is a connectivity problem? Case is only one day old.

Case: Cooler Master 500P (stock 200mm fans)

Thanks.

 

[liamwhalley20]

Have you got it on a pwm curve maybe? Does it start up after a while when the cpu starts heating up?

 

[CrillyWillyAU]

Well the first time i booted it up the bottom fan ran. but after that it didn't.

 

[CrillyWillyAU]

I guess it could be temperature wise? But why would the top one run?

 

[CrillyWillyAU]

I could probably get a controller to control my RPM speeds.

 

[liamwhalley20]

Are they both in the same header? Probably is to do with temps, check your BIOS there will be something in there to change it