[SOLVED] cooling fan confusion

[mrclownface]

I just put together a new system for my sons gaming and have some cooling fan issues,
the mobo i have has limited fan headers so i need some advice at this point,i will list the parts below also.
i have 2x 3pin fans in the front of the case(not rgb or argb) 1 rgb fan on cpu cooler and 1 argb fan at rear of case,
the mobo only has 2x rgb headers and a few 4pin headers.
the front fans i cannot power at all atm.
im wondering should i just a few more rgb fans and add a rgb hub? if yes what hub is suggested?

https://www.scorptec.com.au/product/cases/atx/77983-ca-h510b-b1

https://www.scorptec.com.au/product/motherboards/amd-socket-am4/83420-tuf-b450m-pro-gaming

https://www.scorptec.com.au/product/cooling/cpu-coolers-air/75670-rr-212s-20pc-r1

https://www.scorptec.com.au/product/cooling/120mm-fans/82021-mfl-b2dn-18npa-r1

 

[Lutfij]

Are the front fans , fans that came bundled with your NZXT case? If so you could try and work with one type of fan, preferably RGB since you have 2 headers on your motherboard which can each support up to 3 devices. Also, might want to look at PWM fans and a PWM powered fan hub/powered splitter to have your fans paired to the board.

What sort of a budget do you think you can allocate for the fans/hub in your case?

 

[mrclownface]

Are the front fans , fans that came bundled with your NZXT case? If so you could try and work with one type of fan, preferably RGB since you have 2 headers on your motherboard which can each support up to 3 devices. Also, might want to look at PWM fans and a PWM powered fan hub/powered splitter to have your fans paired to the board.

What sort of a budget do you think you can allocate for the fans/hub in your case?

yes they are the fans that were included with the case,i would like to connect the fans to a hub so the cables are not visible if i can

 

[Paperdoc]

Unfortunately there's an issue here. The two fans supplied with the case are unlighted 3-pin fans. In general you cannot control the speed of 3-pin fans using a simple HUB. (In fact, the case manual suggests it includes a Hub called their "Smart Device".) To have control of those front 3-pin fans, you need to use a SPLITTER, details below. Since your mobo has two CHA_FAN headers and each can be configured for either Voltage Control Mode (aka DC Mode) or PWM Mode, you can arrange them this way. Use a Splitter to connect both 3-pin fans to one header, and set that one to use Voltage Control (DC) Mode. Connect the rear PWM 4-pin fan to the other header and set it to use PWM Mode.

A SPLITTER is a simple device that merely connects all its fans together in parallel to the lines from the mobo header, and ALL power for its fans comes from that header. It has one "arm" with a female fan connector on it to plug into a mobo header. It has two or more "arms" with pins as outputs to fans. It has NO other "arms". A HUB (a different device) has one third arm type that must plug into a power output from the PSU, BUT such devices can control the speed ONLY for 4-pin fans, so do not use one for this.

The most common form of Splitter looks like a collection of cable arms like this

https://www.amazon.com/JBtek-Black-...1&keywords=fan+splitter&qid=1628441506&sr=8-3

But you want to hide cables, so maybe you need a Splitter that looks like a circuit board like this

https://www.amazon.com/YELLOW-SAND-...keywords=fan+splitter&qid=1628441758&sr=8-100

OR, a closed box like this

https://www.amazon.com/DeepCool-Con...?dchild=1&keywords=FH04&qid=1628441849&sr=8-1

With any of these you need to ensure that one fan is plugged into a particular output port - the only port that can send back to the mobo host header the speed signal of its fan. For the cable arms type, it is the one output with all 4 pins. For the circuit board type, it is the one marked for CPU, but do NOT connect your CPU cooler to this port. Just use this Splitter for your 2 front case fans. For the closed box one, it is Port #1.

 

[mrclownface]

Unfortunately there's an issue here. The two fans supplied with the case are unlighted 3-pin fans. In general you cannot control the speed of 3-pin fans using a simple HUB. (In fact, the case manual suggests it includes a Hub called their "Smart Device".) To have control of those front 3-pin fans, you need to use a SPLITTER, details below. Since your mobo has two CHA_FAN headers and each can be configured for either Voltage Control Mode (aka DC Mode) or PWM Mode, you can arrange them this way. Use a Splitter to connect both 3-pin fans to one header, and set that one to use Voltage Control (DC) Mode. Connect the rear PWM 4-pin fan to the other header and set it to use PWM Mode.

A SPLITTER is a simple device that merely connects all its fans together in parallel to the lines from the mobo header, and ALL power for its fans comes from that header. It has one "arm" with a female fan connector on it to plug into a mobo header. It has two or more "arms" with pins as outputs to fans. It has NO other "arms". A HUB (a different device) has one third arm type that must plug into a power output from the PSU, BUT such devices can control the speed ONLY for 4-pin fans, so do not use one for this.

The most common form of Splitter looks like a collection of cable arms like this

https://www.amazon.com/JBtek-Black-...1&keywords=fan+splitter&qid=1628441506&sr=8-3

But you want to hide cables, so maybe you need a Splitter that looks like a circuit board like this

https://www.amazon.com/YELLOW-SAND-...keywords=fan+splitter&qid=1628441758&sr=8-100

OR, a closed box like this

https://www.amazon.com/DeepCool-Con...?dchild=1&keywords=FH04&qid=1628441849&sr=8-1

With any of these you need to ensure that one fan is plugged into a particular output port - the only port that can send back to the mobo host header the speed signal of its fan. For the cable arms type, it is the one output with all 4 pins. For the circuit board type, it is the one marked for CPU, but do NOT connect your CPU cooler to this port. Just use this Splitter for your 2 front case fans. For the closed box one, it is Port #1.

with that deepcool hub,can i connect the 3pin fans at the front of the case? it looks like the 4pin headers on the hub are compatible with 3pin,i did not know that,so i can connect that to a 4pin header the the mobo and run 3pin and 4pin fans into it.
i have solved the issue with the rear ARGB fan with a small hub.
i can get the one below from my local computer store
https://www.scorptec.com.au/product/cooling/fan-controllers/58505-sst-cpf04

 

[Paperdoc]

Yes, that Deepcool item I linked to would do the job. Although it looks like a closed box with ports in slots, in electrical function is is what I call a SPLITTER because it does NOT have any connection to the PSU for extra power. It only connects its fans in parallel to the mobo header signals. So if you set one SYS_FAN header to use the older Voltage Control Mode (aka DC Mode) you can feed both your front 3-pin fans from that and it WILL control their speeds.

You do NOT need a Hub like the Silverstone item to connect just ONE rear fan to the other SYS_FAN header that is configured to use the new PWM Mode. You just plug that one fan in there. A HUB would be needed only if you are running more than one 4-pin fan from that header.