Arctic P12 PWM PST Black Fan how does fan linking work?

bakes0310

bakes0310

bakes0310

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How does it work with linking the fans together. How many fans can you link together.
I'm looking at a case that could fit about 7 fans in it.
So will this allow me to link 7 fans together then and they will work together.
Finally does that mean I need to plug them into just one fan header on the motherboard rather than having to find a way to plug 7 fans into a board somehow?
 
Thanks for the suggestion. Is another option getting a fan controller to plug on the back of the.case?
Sorry for the nooby questions but not sure on this area.
 
Yeah very few motherboards
Will have a header that could take 7 fans
Mine does have a 3A or even 4A fan header
Though I still wouldn't shove 7 fans on it though
It could probably handle it though
Most boards will be 1A or 2A

Yes a fan controller on rear of motherboard
Would be fine as long as its a powered one
Depends what case too
Some have built in fan hubs
 
bakes0310 said:
Thanks for the suggestion. Is another option getting a fan controller to plug on the back of the.case?
Sorry for the nooby questions but not sure on this area.
Click to expand...
Yes a fan controller would work but isn't a requirement, the splitter cables can safely support about 20 P12 fans and runs from a single header as you wanted. There are other versions on the market with SATA power instead of the 4pin molex.
 
And 7 fans isn't actually a lot lol
Got 13 in mine :cry:
Even budget motherboards nowadays
Will have quite a few fan headers
Plus having them on more than 1 header can sometimes
Be useful
If you have an AIO cooler for example
You can set those fans at a different speed
From the case fans
All 7 on one header means all will run at same speed
Only way I have seen to have fans on one header
And still have individual control
Is asus hydranode
 
Mcnumpty2323 said:
And 7 fans isn't actually a lot lol
Got 13 in mine :cry:
Even budget motherboards nowadays
Will have quite a few fan headers
Plus having them on more than 1 header can sometimes
Be useful
If you have an AIO cooler for example
You can set those fans at a different speed
From the case fans
All 7 on one header means all will run at same speed
Only way I have seen to have fans on one header
And still have individual control
Is asus hydranode
Click to expand...

Depends on the fans!

Rarely, if ever used on desktop systems, but I’ve got some that can pull 2-3 amps.

Another potential issue from running multiple fans from a single header is the potential for feeding power back to the system on shutdown.
 
It's not really related to the main topics discussed so far, but having all 7 (or more) fans running off one heading means they're likely to run at identical or near identical rpm frequencies that'll often become a source of harmonic resonance (a hum that you can just make out but can't track down), especially when they need to increase fan speeds.

A bit more related, I have two fan controllers (Aqua Octo and Aqua Quadro) and have them in their respective case(s) somewhere and controlling the fans individually and have a few rpm off from each other to minimise chance of harmonic resonance starting up so easily. Also, with a controller, it's easier to manage the fans on the fly if needed (especially if the motherbaord software is nowhere near as good or the controllers on the motherboard are not as they appear; Voltage or Voltage Hybrid instead of PWM). So another advantage for them if needed (the Asus Rampage IV Extreme for example had this instead of all full proper PWM fan headers, despite being a high end board).
 
noctua.at

NA-FH1

The NA-FH1 is a high-quality, smartly-protected 8 channel PWM fan hub that allows up to eight PWM fans to be run and controlled simultaneously via a single PWM motherboard fan header or stand-alone controllers such as the optional NA-FC1. Non-PWM fans can be controlled by adjusting the input...
noctua.at noctua.at
 
From the fans manual

"You can control several fans from one unique header using the integrated PST extension however, we recommend to limit the number of fans per header to 5 as the current may be limited to 1.0 A per header (please refer to your motherboard manual). The speed monitoring will be done on the first fan in the daisy-chain.

To control more than 5 fans from one unique header, we recommend you to use the ARCTIC Case Fan Hub. Its external SATA power will circumvent the header current limitation."

support.arctic.de

ARCTIC P12 PWM PST - User Manual

Get your ARCTIC P12 PWM PST user manual. Detailed explanation with coloured schematics, photos, animations and videos.
support.arctic.de support.arctic.de
 
Yeah I wouldn't be putting 5 fans
On a 1 amp header
Even though it looks like artic are saying
They they are 2.4w
That means 0.2A
So dead on 1A for 5 of them
That's not allowing any headroom
For inrush when the fans spin up
 
The motherboard I'm looking at has 2 fan headers, does that mean I should be okay distributing the fans on them without any extras like that cable recommended to me or a fan controller?
 
Sorry another very basic question.

The top of the case can have either:
3x120mm fans
Or
2x140mm fans

Which is better in terms of cooling performance?
 
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