Gigabyte GA-EX58-UD5 fan headers - control speed?

dubcat

dubcat

dubcat

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I know this motherboard has a number of fan headers.

1 x CPU fan header
3 x system fan headers
1 x power fan header
1 x North Bridge fan header

Does anyone know which of these fan headers are PWM?

If one of more of these are PWM (i'm guessing at LEAST the CPU one is) how are the fan speeds decided upon/set?

If there are non-PWM fan headers, can they control fan speed by varying voltage? Again, if so, where are the fan speeds set and can the fan speed by adjusted dynamically based on temp sensors?

Cheers in advance,
dubcat
 
great thanks - and is there any way to control the 3 pin jobbies via software or am i just better off plugging those in to a fan controller?

how are the pwm speeds set and are they reactive to temp sensors somewhere? I guess the cpu one is - but what about the other one?
 
is f8 bios ok to use? i just ordered 2 pwm fans. do you think i should cancel that order and select 2 normal 3 pin fans instead which i control manually?
 
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