- Dec 9, 2013
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I'm designing a BitFenix Prodigy mITX build around an ASRock Z77E.
Although I understand how to run multiple fans from a single fan header, It's not clear to me that two dissimilar, PWM controlled, fan sizes would operate correctly when controlled by the same fan header.
Specifically I'm looking to run an H100i's 2x120mm PWM fans and a 140mm PWM exhaust fan all controlled by the CPU header. The chassis header controlling a single 230mm intake fan.
Would a PWM control signal received by all three fans allow all three to attain their maximum speed? Also would all three scale down to zero in synchronicity?
I guess I don't know enough about PWM, or indeed voltage controlled fans, but ideally PWM would somehow be telling each fan to run 100%/75%/50% speed for my setup to work.
It may be a bad idea altogether to group exhaust fan speed with CPU cooling fan speed, but I could always pair the intake and exhaust fan speed together using the chassis header.
Thanks for any help getting to grips with this!
Although I understand how to run multiple fans from a single fan header, It's not clear to me that two dissimilar, PWM controlled, fan sizes would operate correctly when controlled by the same fan header.
Specifically I'm looking to run an H100i's 2x120mm PWM fans and a 140mm PWM exhaust fan all controlled by the CPU header. The chassis header controlling a single 230mm intake fan.
Would a PWM control signal received by all three fans allow all three to attain their maximum speed? Also would all three scale down to zero in synchronicity?
I guess I don't know enough about PWM, or indeed voltage controlled fans, but ideally PWM would somehow be telling each fan to run 100%/75%/50% speed for my setup to work.
It may be a bad idea altogether to group exhaust fan speed with CPU cooling fan speed, but I could always pair the intake and exhaust fan speed together using the chassis header.
Thanks for any help getting to grips with this!
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