Three fans connected via a single port.

Superlettuce19
Senior Member

370

09-02-2019, 01:35 PM

It could be risky to link three 120mm fans from your Kraken X73 cooler to a single fan port on a X570 motherboard using splitters. Make sure the setup matches the motherboard's fan configuration and power limits.

Superlettuce19

09-02-2019, 01:35 PM #1

alexagas
Member

210

09-07-2019, 02:14 PM

It should work just fine. Most headers are rated up to about 1A, so you’d likely need far more than three standard 120mm 12V fans to achieve the required performance.

alexagas

09-07-2019, 02:14 PM #2

It should work just fine. Most headers are rated up to about 1A, so you’d likely need far more than three standard 120mm 12V fans to achieve the required performance.

LuddePHJ
Junior Member

09-08-2019, 03:01 PM

He mentioned this but to confirm, refer to your manual for the header's maximum output current. Add together the currents from all three fans and check if it exceeds the limit.

LuddePHJ

09-08-2019, 03:01 PM #3

He mentioned this but to confirm, refer to your manual for the header's maximum output current. Add together the currents from all three fans and check if it exceeds the limit.

Charliemp03
Junior Member

09-09-2019, 12:09 AM

Thanks! I just installed Windows on my computer and started testing it out. All three fans are now connected to the CPU_opt port. They seem to speed up and slow down frequently. Maybe I should set them to max for about 10 seconds every few minutes, then let them idle before restarting...

Charliemp03

09-09-2019, 12:09 AM #4

ckg63
Member

196

09-13-2019, 03:05 AM

Consider adjusting the fan curves. Ensure PWM is active for better precision.

ckg63

09-13-2019, 03:05 AM #5

Consider adjusting the fan curves. Ensure PWM is active for better precision.

MrKryp
Senior Member

643

09-13-2019, 03:53 AM

The case fans were originally from the Corsair 750d model, with two front and one rear unit. Each has a 3-pin connector. The three radiator fans use four-pin connectors.

MrKryp

09-13-2019, 03:53 AM #6

The case fans were originally from the Corsair 750d model, with two front and one rear unit. Each has a 3-pin connector. The three radiator fans use four-pin connectors.

ssheerio
Member

135

09-13-2019, 04:03 AM

I bought a noctua fan controller at a low price because I worried it might stop fans from working due to a single header. In my setup, I only have one adjustable header available.

ssheerio

09-13-2019, 04:03 AM #7

I bought a noctua fan controller at a low price because I worried it might stop fans from working due to a single header. In my setup, I only have one adjustable header available.

MasterGames777
Junior Member

09-13-2019, 04:51 AM

Understand the overall current usage of all fans and then assess the header's capacity. Most headers support about 1 amp, while others may handle 1.2 or 1.5 amps. There are instances where AIO fans run at full speed without PWM control, drawing up to 3 amps. With three Noctua 120mm fans spinning at 3000 RPM on a single header, each drawing 0.3 amps, the total load is manageable.

MasterGames777

09-13-2019, 04:51 AM #8