Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Running 8 fans from 2 PWM leads, questions and concerns

Running 8 fans from 2 PWM leads, questions and concerns

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Running 8 fans from 2 PWM leads, questions and concerns

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I have this mobo:
http://www.newegg.com/Product/Prod [...] 6813131405
it offers a LOT of functions and fan control.

I have this Coolermaster 922 HAF CASE
http://www.newegg.com/Product/Prod [...] 6811119197

and a 700 watt psu

I do not want my pc sounding like an airplane all the time, but with overclocking the cpu and gpu i want my fans to scale when things get hot.

I have (2) PWM leads and (1) 3pin lead that I can control (says asus) from the mobo bios and software which ever way i choose.

I also have a (4th) fourth fan lead that is (3) pin that i cannot control.

My idea is this....

FANS
GELID Solutions FN-PX12-15 120mm Case Fan with Intelligent PWM control - Retail
http://www.newegg.com/Product/Prod [...] 6835426015

CONNECTORS
GELID Solutions 350 mm PWM Y Cable Model CA-PWM - Retail
http://www.newegg.com/Product/Prod [...] 6812718001

I was thinking of running a total of 4 fans from each PWM lead.

2 fans on the cpu
2 fans on the side
running those 4 off the CPU PWM lead

2 fans on top
1 fan on the back
1 fan on the bottom
running those 4 off the CHASIS PWM lead

then running 1 higher airflow fan off the front off the (1) 3pin controllable connter on the mobo.


Will this work or will i be starving my mobo?

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my only concern would be the current draw on the Vcc for the CPU PWN lead.....if you wanted to get really hands on, you could run the actual run lead for all of them off the cpu fan header, but i would be wary of actually powering 4 fans off 1 lead.....if the power were just running straight off the PSU you'd be fine, and you could tie the PWM lines all together on the mobo header

Reply to uh_no

the fans are rated at 2.16 watts at 12 volts each the mobo manual reads total of 84watts max at 12 volts. Meaning ill be running 25ish watts total off 2 leads.

Reply to imafiretruck

I reread the manual each lead does 24watts and the board does 84 watts total.

Reply to imafiretruck
Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Running 8 fans from 2 PWM leads, questions and concerns
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