Getting my fan set up right!

Guest · Jul 17, 2013

Hi all,

I've ordered all the parts for my first build and I'm currently working out how it all fits and what I've forgotten! I've spent most of the evening looking at fan setups and my head is swimming, however, I think I've got it figured out and was hoping someone could tell me if I'm on the right track!

I have an ASUS P8Z77-V LX mobo and it features the following fan headers 1 x CPU (4 pin); 2 x Chassis (4 pin); and 1 x PWR (3 pin).

My 212 EVO will connect to the CPU header. I have 2 Fractal 120mm case fans which came with the case and 2 Akasa Apache 120mm ones which I bought seperately. My plan is to put 1 Fractal and 1 Akasa at the front and the other 2 at the back and rear top openings. Then, using 2 Akasa PWM Splitters (link below) I put one Akasa (4 pin) into the RPM feedback side and a Fractal (3 pin) into the non-RPM feedback side. Does this setup mean that the rpm regulating coordination between mobo and Akasa fan will apply to the Fractal fan despite it not being PWM?

Akasa Splitter

Finally, the PSU is a Corsair TX650M (Enthusiast Series). I can’t identify a 3 pin connector for the PWR header on the mobo and the feature list states the fan’s ability to stop at low load. This makes me think the PSU’s fan is self regulating and does not need to be connected to the mobo PWR header. Is this right or am I very, VERY wrong here?

Sorry for going on so long, if anyone managed to read all that and has some advice for me I would be very grateful for it!

nostall · Jul 17, 2013

Correct, the PSU fan is a completely separate circuit within the PSU: it will regulate itself. The Motherboard does NOT provide any power to the PSU; Quite the opposite.
Go here:
http://www.jonnyguru.com
Click search, type in Corsair TX and hit search. The 550 is your psu's little brother, the 750 it's big brother. somewhere in there they will talk about the fan only spinning up when the psu gets warm.
This web site is a true treasure chest of knowledge re. Power Supply Units! Some neat pictures of one's that have burned or exploded during testing.

Case fans; I don't know about all the fancy control on the fans, but make sure the two front fans are intake and the rear and top are exhaust.
Someone with a little more knowledge of FAN CONTROLS please respond.
Hope this helps.

Guest · Jul 19, 2013

nostall :

Thanks nostall, that link was really useful and my mind is at rest on the PSU matter.

If someone does have some advice on the fan setup that would be great. It seems to me that it should work, if the fans are controlled simply by the amount of power supplying them then the Fractal fan will respond in step with the Akasa which is governing the power via the PWM connection. The worry may be that the Akasa draws more power than the Fractal and may exceed the max. draw for those fans. But surely they have resistors of some kind to ensure they are not overloaded?

nostall · Jul 19, 2013

nostall :

Thanks nostall, that link was really useful and my mind is at rest on the PSU matter.

If someone does have some advice on the fan setup that would be great. It seems to me that it should work, if the fans are controlled simply by the amount of power supplying them then the Fractal fan will respond in step with the Akasa which is governing the power via the PWM connection. The worry may be that the Akasa draws more power than the Fractal and may exceed the max. draw for those fans. But surely they have resistors of some kind to ensure they are not overloaded?

Regardless of where you plug in the fans, I believe you are overthinking this. Fans draw very little power (as in amperage), they will only draw what they need (each fan) and your PSU and MoBo will be able to handle it. I have never had, nor heard of, a fan overloading; fans usually die from mechanical problems such as bearings wearing out.

Guest · Jul 20, 2013

nostall :

Regardless of where you plug in the fans, I believe you are overthinking this. Fans draw very little power (as in amperage), they will only draw what they need (each fan) and your PSU and MoBo will be able to handle it. I have never had, nor heard of, a fan overloading; fans usually die from mechanical problems such as bearings wearing out.

Ha ha, yeah I take your point, I guess I am putting to much thought into this. It's just with this being my first build I'm trying to cross all the t and dot all the i so to speak!

Thanks for the help nostall.

nostall · Jul 20, 2013

nostall :

Regardless of where you plug in the fans, I believe you are overthinking this. Fans draw very little power (as in amperage), they will only draw what they need (each fan) and your PSU and MoBo will be able to handle it. I have never had, nor heard of, a fan overloading; fans usually die from mechanical problems such as bearings wearing out.

Ha ha, yeah I take your point, I guess I am putting to much thought into this. It's just with this being my first build I'm trying to cross all the t and dot all the i so to speak!

Thanks for the help nostall.

You're very welcom, enjoy your new PC.

Search

Getting my fan set up right!

Guest

Guest

nostall

nostall

Splendid

Guest

Guest

nostall

Splendid

Guest

Guest

nostall

Splendid

TRENDING THREADS

Latest posts

Moderators online

Share this page