i have p5ql pro mobo,can i - same 4pin cpu fan header for both cpu fan and a case fan(also a cpu fan took from another intel mobo)

[meganin]

i have p5ql pro mobo,can i use same 4pin cpu fan header for both cpu fan and a case fan(also a cpu fan took from another intel mobo) with a spiltter, my cpu fan is antec a40 pro(92mm fan with blue light),cpu x5470,gt730 ddr5 nvidea , have a chassis fan which is a intel cpu fan running at ful speed 2721 rpm systin , so thought if may be i can control both the cpu fan and this chassis fan with qfan control in asus bios,thanks

 

[aigomorla]

using the splitter?
You should be able to if the splitter also splits the pwm signal.

 

[Paperdoc]

Yes, this will work but ONLY if both of the fans you use are of the 4-pin type. The CPU_FAN header only uses the new PWM Mode for control of fan speeds, and that method can NOT control the speed of the older design 3-pin fans.

Any current-design 4-pin fan Splitter will do the job for you - they all distribute the mobo header's PWM signal to all their fans.

 

[Fanatical Meat]

Per a similar question I had for a P5Q (deluxe?), yes it will work however you likely want a powered fan hub so the other fans run at their appropriate speed.
4 fans running on one unpowered splitter basically cuts their power to 1/4

 

[meganin]

thank you so much for all of your replies , my intel cpu from a old mobo has 4 pins, then my antec a40 has ofcourse a cpu aftermarket cooler has 4 pin ,the intel cpu fan looks like 8omm fan and antec -the one i am using for cpu is 92mm fan with a blue light,
please guide me about the amperage would be safe or not if i use some splitter to cpu 4pin header ,also again i would like to mention- my fan speeds as of now -
antec cpu fan (x5470 cpu -not overclocked-not gona do too) -- 1795 rpm/ cputin- 37c cores - with 100tjmax- 48 49 46 45 /with 85c tj max- 35 34 31 30
systin fan (old 4pin cpu fan) - 2679 rpm

 

[Paperdoc]

Unfortunately I can see a two questions unanswered by the Antec website info.

1. The fan on that A40 cooler system is stated to be a blue-only lighted fan, and the unit has only one power cable. Thus this is what is termed a "LED Fan" in which the LED lights are fed power in parallel with the fan motor. Thus the LED's draw their power from the mobo header as the motor does, and the current consumption for this unit is more than a typical value for a plain fan (likely up to 0.4A max, as opposed to up to 0.25 A). But exactly what that value is, is not given anywhere. So to add up the max current specs of this fan, plus the old Intel original CPU cooler fan at a guess, 0.15 A), plus a third fan (I am NOT clear on whether you plan a third fan) is not possible. The mobo CPU_FAN header limit normally is 1.0 A, but the manual (p. 2-29) for this one says the limit is 2 A per header, so maybe you're OK there.

2. The fan type, as deduced from its wiring, is not clear. The descriptive words for the A40 system say it is a PWM fan, and the fan connector is specified as a 4-pin type. BUT the photos show the CABLE from the fan motor to the connector as having THREE wires. Maybe that's just an old outdated photo of an prior model. My concern is that a 3-pin fan can NOT have its speed controlled by a header that uses only the 4-pin fan PWM Mode of control. So, look closely at the fan you have. Does it have FOUR wires from motor to connector? Then there is no worry.

I was intrigued that you want to connect all your cooling fans to the CPU_FAN header, because that's not quite the ideal way under most circumstances. But I see the mobo manual indicates that the only header that does exert speed control is the CPU_FAN header, and the others appear to provide only a fixed 12 VDC supply for sonstant full-speed operation.