Struggling to install case fans to PSU/Mobo

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tb2st2016

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Sep 16, 2016
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I have bought a CiT G Force Gaming Case,

It comes with 3 case fans (all which are 3 pins). Out of the box they come attached to a fan controller built into the case which has 3 stages, off slow and fast. this is powered by molex.

I am struggling to install the case fans as I'm not sure where to plug them into.
 
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Phillip Corcoran

Phillip Corcoran

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Sep 7, 2013
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MERGED QUESTION
Question from tb2st2016 : "Need help connecting case fans!"





 
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T

tb2st2016

Commendable
Sep 16, 2016
4
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1,510
The fans connectors came joined together (two plugs joined together on top of each other) with 1 front side female molex and on the other a male molex (this is all on one plug).

Do I just connect the PSU molex (female) to the joint molex?? I hope that made sense xD

 
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SkittishGaming

SkittishGaming

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Feb 4, 2016
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Definetly, what else would you do :) :D
 
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Jondoe1980

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Dec 16, 2016
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It's actually not as straight forward as that. I too own this case and there are chassis fan connectors on the motherboard, but the CiT G-Force case is pre-configured to use the direct to PSU via Molex setup which confused me initially. Having done a bit of reseach I established that there are 2 scenarios to choose from and thought I'd share my 2 cents for anyone else who stumbles across this issue.

1. The case has 3, essentially 2 fans - FAN1 (the front 2 intake fans connected together) and FAN2 (the rear exhaust fan). Both of these connect to joint Molex connectors that goes directly to the PSU and can be speed controlled using the front external 'low to high' switches. Pro: The option to manually control fan speed, as intended by design. Con: The motherboard will not detect the chassis fans and will therefore not provide you with a Bios and/or monitoring application speed reading.

2. Unplug the fans' 3-pin connectors connected to FAN1 and FAN2 and plug all 3 (front 2 now separated), which connect one way only, into the available 4-pin chassis fan connectors on your motherboard. Pro: You will now be able to get a fan speed reading from you Bios and/or monitoring application. It may also warn/indicate if any of the fans inccur a failure. Con: The manual 'high/low' switches on the case are no longer of any use and fans will run at 100%.

4-pin fans would have allowed for automatic speed control from the motherboard based on temperature and fan speed readings. But as these fans are 3-pin I decided to go with connecting the fans to the PSU directly (via Molex) as I preferred the option of being able to manually control the fan speeds instead of having them run at 100% constantly.

DO NOT plug in both the motherboard connectors and Molex connectors at the same time.
 
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