Enthoo pro: PWM-hub

[olive159]

I have set up the PWM-hub that comes with the Phanteks Enthoo pro: I connected the front-fan with the "Fan-1" output of the hub and the back-fan with the "Fan-2" output on the hub. Then I connected the hub with the "Cha_1"-connector on my mobo. But here I run into a problem: whenever I set the output of the "Cha_1" connector to "PWM" the fans start running on there top-speed. Only when I change the connector to DCV, are they slowing down; But I thought the whole benefit of the connector was to be able to use the benefits of PWM.

Any help and feedback is greatly appreciated

 

[olive159]

Something I forgot to mention: I also connected the sATA power-cable

 

[Paperdoc]

Your post looks "backwards". If the Phanteks PWM Hub is connected to the PSU SATA power outputs and then its fan connector plugged into a mobo CHA_FAN header, it should work. BUT to make it work, the fan header must be configured to use PWM Mode for control method. Your post says that is the condition that does NOT work. Please re-check.

Post back here what mobo maker and exact model number you have, so we can check what the mobo fan headers can do. There are a couple of other configuration settings to check, also. The particular header should be set to "Standard" profile (to use automatic control) and, if there's a choice, to use the motherboard temperature sensor, and not the CPU sensor. With the details of what mobo you have we can be more specific.

The Phanteks PWM Hub does not give you the features of the new PWM design. To get all those benefits (which are small, but do exist) you MUST be using 4-pin fans and you MUST be using a 4-pin fan header that actually uses PWM Mode for its control. Many mobo headers with 4 pins these days don't do that. What the Phanteks Hub actually does is convert the PWM control system from a single fan header into an older-style Voltage Control Mode system for 3-pin fans. But since 4-pin fans can use that older control system, too, you can plug 4-pin fans into it - they just will be controlled by an older system.

 

[olive159]

In the first place, thank you for answering!

Your post looks "backwards". If the Phanteks PWM Hub is connected to the PSU SATA power outputs and then its fan connector plugged into a mobo CHA_FAN header, it should work. BUT to make it work, the fan header must be configured to use PWM Mode for control method. Your post says that is the condition that does NOT work. Please re-check.

I did re-check: to summarize:
PWM-hub -> CHA_1 (PWM) and SATA power cable: no succes
PWM-hub -> CHA_1 (DCV) without SATA power cable: does work

Post back here what mobo maker and exact model number

I have a "asus ROG strix z270e gaming"-motherboard.

(web-link to the manual):

Spoiler

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/STRIX_Z270E_GAMING/E12192_STRIX_Z270E_GAMING_UM_V2_WEB.pdf

Maybe I should just use the DCV solution and don't hook up too many other fans?

 

[Paperdoc]

From what you confirm, the Phanteks PWM Hub you have is NOT performing correctly. It certainly should control the speed of your 3-pin fans (I assume they are the two supplied with the case) when the Hub is connected to the PSU and a mobo header using PWM Mode. Just to be sure, when you set the header to PWM Mode, did you SAVE and EXIT to make sure the BIOS Setup changes were saved and used?

Now, for what you describe, you may not need that Hub at all. Leave aside for the moment the CPU cooling system - it will be attached to the CPU_FAN header. For case ventilation fans only, you appear to have two - front 200mm, rear 140mm - both of the 3-pin design. Without using a Hub or Splitter, you have all the connection points you need on the mobo. It has two CHA_FAN headers. You can plug each fan into its own header and configure both to use DC Mode and the Motherboard temperature sensor, then SAVE and EXIT. Each will be controlled by the same reference point (the mobo temp sensor) and each will report their speeds to their respective headers for observation if you wish.

If you have other items that need connections to a mobo fan header that I have missed, post back here for more info.