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post #2061 of 3060

Depending on your mb manufacturer, you might have controllers for your case fans. The SYS fan headers on my Z87 and Z97 boards have fine controls on their fan headers, for PWM, for instance. With PWM, you probably don't need a fan controller.


Edited by ehume - 9/30/15 at 6:31pm
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post #2062 of 3060
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post #2063 of 3060
Quote:
Originally Posted by xXx1990 View Post

Yes load temps on the CPU are 47.. But the other temps are not lol, The fan controller would be for the case fans. Now im wondering can I use 2 Y 4pin splitter cables together to connect all 3 case fans to one PWM header on the mobo so I can control them all together or no? Because if I can do that then im fine with not having an external fan controller since my board technically only has one PWM header and the other one is the CPU PWM header which is controlled simultaneously with the CPU fan.
You can use Gelid PWM splitter that powers fans directly from PSU.
There are only two pins attached to mainboard fan connector - PWM signal and RPM signal.

I also have one working PWM connector (CPU_FAN) on my Gigabyte Z87 mobo and I use 3xNF-A14 PWM connected via this splitter.
On the other hand, CPU cooler, NH-D14 (non-pwm fans) is connected to one of the SYS_FAN connectors (voltage controlled).

Everything works great with Speedfan and two custom fan curves.
Case fans are controlled by GPU temperature.
CPU fans - by CPU temperature.
post #2064 of 3060
I would advise caution when running multiple fans on a single header.

Motors (in fans and others) draw 2-3 times as many amps at startup than when running at full speed .. and many fans only spec the running load. This means a fan with 0.13a spec could be pulling 0.39a at startup .. meaning 3x 0.13a spec fans could be pulling 1.17a at startup.

Running seven of those NF-A14 PWM's off of one 1A header could be disastrous if they are pulling 1.8a (2x rating) and even more so if it is 2.7a (3x rating) at startup. I have not tried it so can't say it will not work as I would rather error on the side of caution rather than replacing my motherboard. Much cheaper to buy a few PWM splitters / hubs with PSU power

The above is why I almost always use PWM fans and PWM splitters or hubs with PSU power Guide to setting up PWM control from motherboard (CPU) PWM and GPU PWM fan headers is in "Ways to Better Cooling" link in my sig.
post #2065 of 3060
I just need the pwm plug to control 3 not 7 fans LOL... Since the other 2 fans are being controlled by the corsair pump.
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post #2066 of 3060
Quote:
Originally Posted by xXx1990 View Post

Yes load temps on the CPU are 47.. But the other temps are not lol, The fan controller would be for the case fans. Now im wondering can I use 2 Y 4pin splitter cables together to connect all 3 case fans to one PWM header on the mobo so I can control them all together or no? Because if I can do that then im fine with not having an external fan controller since my board technically only has one PWM header and the other one is the CPU PWM header which is controlled simultaneously with the CPU fan.

You will need to check and see how much that one PWM header can power, 3 fans might be pushing it. You could always just throw the back fan on a regular fan power header and maybe use one of the Noctua low noise adapters that come with the fan to lower the RPM.
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post #2067 of 3060
Quote:
Originally Posted by Transmaniacon View Post

You will need to check and see how much that one PWM header can power, 3 fans might be pushing it. You could always just throw the back fan on a regular fan power header and maybe use one of the Noctua low noise adapters that come with the fan to lower the RPM.
Gelid have larger gauge leads from Molex to distribution point. wink.gif
I've ran 4x TY-143 fans on same splitter with no problems .. and they are 0.51a each for a total of 2.04a thumb.gif
post #2068 of 3060
I have yet to figure out a great solution for plugging up these 3 PWM A14's on my mobo lol
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post #2069 of 3060
If one of my fans is connected to a 3 pin header would I still be able to controll it from the bios fan settings?
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post #2070 of 3060
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