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More than 2 case fans with an ITX mobo with 1 fan header

Tiffanysinyee
By Tiffanysinyee
in Power Supplies
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I intend to buy a new case and use my existing ITX motherboard. But the board has only 1 chassis fan header and I want to install 3 PWM case fans.

Are there any 1-to-3 4 pins splitters for such arrangement?  Can you provide the link?

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https://miningwholesale.eu/product/1-to-3-way-4-pin-pwm-fan-splitter-cable/

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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4 minutes ago, Tiffanysinyee said:

Excellent! 

But I have a technical question: when 3 fans are connected to this header, will the header on the motherboard be provide sufficient amps to drive all 3 of them ( will use Vardar 3000 rpm PWM fans)

Nice fans btw.

 

 

Spoiler

 

Mechanical and electrical specifications:

  • Maximum speed: 3000 RPM (+/- 10%)
  • Rated Voltage: 12V DC
  • Power Draw: 5.64W
  • PWM Duty Cycle: 40-100%
  • Connector: 4-pin PWM header
  • Shaft bearing: Dual-Ball bearing
  • Bearing durability: 50.000 hrs @ 40°C (MTBF)
  • Dimensions: 120 x 120 x 25 mm

 

Performance characteristics:

  • Max Air Flow: 107 CFM = 181 m³/h
  • Static Pressure: 5.81mm H2O = 57 Pa
  • Sleeved cable length: 300 mm
  • Noise Level: 42 dBA (100% PWM)

 

 

 

They are 5,64Watt a piece mean the source should be trice that.
That is 16,92 Watts. (Also note Max wattage is usualky only when accelerating not when already running).

And at 12Volts that would mean; 1,41Amps are needed on that port.

I dont know your motherboard specs, but hopefully this is enough to know if it will work or not.

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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1 minute ago, Tiffanysinyee said:

Excellent! 

But I have a technical question: when 3 fans are connected to this header, will the header on the motherboard be provide sufficient amps to drive all 3 of them ( will use Vardar 3000 rpm PWM fans)

  Oooh. Normally the answer would be yes, but 3000rpm doesn't sound too good. Normal fan header is 1amp, these fans are ~0.47amp each by my calculations. So you could put 2 of them on one header, and connect the last one to the cpu fan header maybe?

I only see your reply if you @ me.

This reply/comment was generated by AI.

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1 minute ago, HanZie82 said:

Nice fans btw.

 

Mechanical and electrical specifications:
- Maximum speed: 3000 RPM (+/- 10%)
- Rated Voltage: 12V DC
- Power Draw: 5.64W
- PWM Duty Cycle: 40-100%
- Connector: 4-pin PWM header
- Shaft bearing: Dual-Ball bearing
- Bearing durability: 50.000 hrs @ 40°C (MTBF)
- Dimensions: 120 x 120 x 25 mm

 

Performance characteristics:
- Max Air Flow: 107 CFM = 181 m³/h
- Static Pressure: 5.81mm H2O = 57 Pa
- Sleeved cable length: 300 mm
- Noise Level: 42 dBA (100% PWM)

 

They are 5,64Watt a piece mean the source should be trice that.
That is 16,92 Watts. (Also note Max wattage is usualky only when accelerating not when already running).

And at 12Volts that would mean; 1,41Amps are needed on that port.

I dont know your motherboard specs, but hopefully this is enough to know if it will work or not.

Yes, I bought 1 the day before yesterday for interim use in my current case, trying to test out the noise and its "blowing" power. Very good! It's a good fan.

 

In case it blows up my motherboard fan header, can I use Corsair Fan Commander for the job? But I really want to save the money because the Fan Commander is not cheap.

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1 minute ago, Tiffanysinyee said:

Yes, I bought 1 the day before yesterday for interim use in my current case, trying to test out the noise and its "blowing" power. Very good! It's a good fan.

 

In case it blows up my motherboard fan header, can I use Corsair Fan Commander for the job? But I really want to save the money because the Fan Commander is not cheap.

Quote

Controls up to 6x 3-pin DC or 4-pin PWM fans, including the ability to run in a Zero-RPM fan mode for total silence.

Sauce: https://www.corsair.com/us/en/Categories/Products/Accessories-|-Parts/iCUE-CONTROLLERS/iCUE-Commander-PRO-Smart-RGB-Lighting-and-Fan-Speed-Controller/p/CL-9011110-WW

 

So i would think yes it would. But have them on their own channel.

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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5 minutes ago, HanZie82 said:

Nice fans btw.

 

Mechanical and electrical specifications:
- Maximum speed: 3000 RPM (+/- 10%)
- Rated Voltage: 12V DC
- Power Draw: 5.64W
- PWM Duty Cycle: 40-100%
- Connector: 4-pin PWM header
- Shaft bearing: Dual-Ball bearing
- Bearing durability: 50.000 hrs @ 40°C (MTBF)
- Dimensions: 120 x 120 x 25 mm

 

Performance characteristics:
- Max Air Flow: 107 CFM = 181 m³/h
- Static Pressure: 5.81mm H2O = 57 Pa
- Sleeved cable length: 300 mm
- Noise Level: 42 dBA (100% PWM)

 

They are 5,64Watt a piece mean the source should be trice that.
That is 16,92 Watts. (Also note Max wattage is usualky only when accelerating not when already running).

And at 12Volts that would mean; 1,41Amps are needed on that port.

I dont know your motherboard specs, but hopefully this is enough to know if it will work or not.

My mobo manual https://dlcdnets.asus.com/pub/ASUS/mb/LGA1155/P8Z77-I_DELUXE/E7987_P8Z77-I_DELUXE.pdf

 

On page 2-24, it says 1A (12W)

 

I guess I can only use 2 then!

 

The 3rd one, can I plug it into the Corsair Fan Commander? 

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3 minutes ago, HanZie82 said:

Sauce: https://www.corsair.com/us/en/Categories/Products/Accessories-|-Parts/iCUE-CONTROLLERS/iCUE-Commander-PRO-Smart-RGB-Lighting-and-Fan-Speed-Controller/p/CL-9011110-WW

 

So i would think yes it would. But have them on their own channel.

I can't understand the connectivity.

Do you know it?  Can you explain how to connect? Do I need to go through the motherboard Chassis fan header or everything is handover to the commander?

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9 minutes ago, Origami Cactus said:

  Oooh. Normally the answer would be yes, but 3000rpm doesn't sound too good. Normal fan header is 1amp, these fans are ~0.47amp each by my calculations. So you could put 2 of them on one header, and connect the last one to the cpu fan header maybe?

My mobo only has 1 chassis fan header coz it's a itx mobo. I think I can connect the splitter to the chassis fan header it will use 0.94amp. The remaining fan I may need to buy the Corsair Fan Control Commander to control it but I dont know how it works.

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3 minutes ago, Tiffanysinyee said:

I can't understand the connectivity.

Do you know it?  Can you explain how to connect? Do I need to go through the motherboard Chassis fan header or everything is handover to the commander?

I do not own that product, but im pretty sure the manual will have all those answers. If not the manual check the link i sent and see if they have something mentioned in their support page.

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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1 minute ago, Tiffanysinyee said:

My mobo only has 1 chassis fan header coz it's a itx mobo. I think I can connect the splitter to the chassis fan header it will use 0.94amp. The remaining fan I may need to buy the Corsair Fan Control Commander to control it but I dont know how it works.

Yes, but you can connect a chassis fan to a cpu fan header too.

No need to buy a commander pro, that would use propietary software, you couldn't control fan speed on motherboard.

You could buy a powered fan hub, that would be the best option.

I only see your reply if you @ me.

This reply/comment was generated by AI.

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1 minute ago, Origami Cactus said:

Yes, but you can connect a chassis fan to a cpu fan header too.

No need to buy a commander pro, that would use propietary software, you couldn't control fan speed on motherboard.

You could buy a powered fan hub, that would be the best option.

What is a powered fan hub?

 

My CPU fan header is connected to a Corsair Hydro Series H60, it's used.

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Just now, Tiffanysinyee said:

What is a powered fan hub?

 

My CPU fan header is connected to a Corsair Hydro Series H60, it's used.

Powered fan hub has a sata power input, so that the motherboard fan header only has to control the speed of the fans, it doesn't need to supply the power.

I only see your reply if you @ me.

This reply/comment was generated by AI.

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15 minutes ago, Origami Cactus said:

Powered fan hub has a sata power input, so that the motherboard fan header only has to control the speed of the fans, it doesn't need to supply the power.

Ok, so the hub supplies power to all 3 fans even though the fans require a total of 1.41amp without blowing up the chassis fan header on the mobo, do I understand you correctly?

 

And the chassis fan header on the mobo provides only speed control to the hub which by extention to the 3 fans, right?

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10 minutes ago, Tiffanysinyee said:

Ok, so the hub supplies power to all 3 fans even though the fans require a total of 1.41amp without blowing up the chassis fan header on the mobo, do I understand you correctly?

 

And the chassis fan header on the mobo provides only speed control to the hub which by extention to the 3 fans, right?

Reading the product description, that seems to be the case.

I only see your reply if you @ me.

This reply/comment was generated by AI.

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