Quiet spec PC arrived and it's not quiet at all

SpyderTracks

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Sorry I did actually say that the front fans are connected to the 3 pin headers on the case controller. I've posted a lot and sounds like you are really busy so no worries if you missed that bit.

So where we are is all 3 fans are connected to the nexus hub. The nexus hub is connected via the PWM header to the CHA_FAN5. Changing the CHA_FAN5 speed via the BIOS (or any other fan channel for that matter) doesn't have any effect in AUTO mode, DC mode or PWM mode. Turning the fans off doesn't turn them off either.
Could you upload a photo of the case controller as currently we're shooting in the dark without knowing what's plugged in where?
 

jergil

Bronze Level Poster
@SpyderTracks
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Scott

Behold The Ford Mondeo
Moderator
So with that as it is. You need to go into QFan control. Selec the CH5 fan option. Set to DC mode. Set it to quiet/silent/lowest option. Note that the graph should change to an actual profile at that point.

You may need to come out and save the changes for it to stick. I'm not sure if it applies on the fly.
 

Scott

Behold The Ford Mondeo
Moderator
I had another wee search and found the below. Note that it's anecdotal and I believe based off of the manual, rather than experience, but it does suggest the same thinking that a PWM fan is required in the first position.

The Nexus+ 2 fan hub is a PWM fan hub which distributes the signals from the main header to the rest of the fans, making them go at the same percentage of their maximum speed.

The main header is marked in the manual, and on the hub, it's marked as FAN1. This needs to have at least 1 PWM fan connected to it in order for you to control the fans on the hub, considering it's the only header that receives and sends signals to the motherboard. It does not need to be the CPU-cooler connected to the header, but it has to be a 4-pin PWM unit. You don't have to connect the hub to the CPU_FAN header either, but have it on a 4-pin PWM-header(avoid the AIO_PUMP header, since it's sometimes set to run at 100%).

If saving the Qfan etc doesn't change anything (and note, it would only guarantee a change until Windows loaded, after which it's possible for any number of Fan control software to take over, ASUS loves to load the system with tat). then you need to look at another option for control.

Option 1 - iCue, connect everything to the Corsair hub and control via the software.
Option 2 - Motherboard, connect the fan to the motherboard headers directly and set them individually in the BIOS via the QFan options.

Even with BIOS set, you can still set profiles and fan control in Windows with software. Just want to mention that as this may be something you would want and also to make you aware in case there's a contrast between how the fans sound prior to Windows loading vs how it sounds once fully booted up.
 

jergil

Bronze Level Poster
@Scott

No effect at all. Fan RPM unchanged after putting in DC mode, reducing to 20% power and saving and exiting and restarting. Back in BIOS again; no change.
 

jergil

Bronze Level Poster
I had another wee search and found the below. Note that it's anecdotal and I believe based off of the manual, rather than experience, but it does suggest the same thinking that a PWM fan is required in the first position.



If saving the Qfan etc doesn't change anything (and note, it would only guarantee a change until Windows loaded, after which it's possible for any number of Fan control software to take over, ASUS loves to load the system with tat). then you need to look at another option for control.

Option 1 - iCue, connect everything to the Corsair hub and control via the software.
Option 2 - Motherboard, connect the fan to the motherboard headers directly and set them individually in the BIOS via the QFan options.

Even with BIOS set, you can still set profiles and fan control in Windows with software. Just want to mention that as this may be something you would want and also to make you aware in case there's a contrast between how the fans sound prior to Windows loading vs how it sounds once fully booted up.
Thanks Scott, I will try the Corsair hub option first and report back.
 

Scott

Behold The Ford Mondeo
Moderator
@Scott

No effect at all. Fan RPM unchanged after putting in DC mode, reducing to 20% power and saving and exiting and restarting. Back in BIOS again; no change.
I guess it still reported the changes as you would expect to see? They were actually saved?

Thanks Scott, I will try the Corsair hub option first and report back.
You going for it now?
 

jergil

Bronze Level Poster
@Scott
Ugh no dice with the corsair hub. They weren't picked up by the wizard and they are going at the exact same speed as far as I can tell. Doing some googling seems to indicate that 3 pin fans can't be controlled by the hub, presumably for the same reason (lack of PWM)

I set both CPU fans to zero RPM just to be sure. Couldn't even hear the difference... that's how much they are being drowned out by the case fans lol.

Alright so mobo headers next...
 

Scott

Behold The Ford Mondeo
Moderator
Must admit, I'm really surprised with that. Most fan controllers can handle both, although granted they do need to be configured appropriately in the software.

There are a myriad of Corsair options with the controller though. I'll have a look to see if I can figure out which one you have.
 

jergil

Bronze Level Poster
Must admit, I'm really surprised with that. Most fan controllers can handle both, although granted they do need to be configured appropriately in the software.

There are a myriad of Corsair options with the controller though. I'll have a look to see if I can figure out which one you have.
I have to admit I got put off when, trying to add them manually, the software presented me with selection of RGB fan types to choose from, but maybe I should have selected one of them and seen where it would take me. I'll try one more time.
 

Scott

Behold The Ford Mondeo
Moderator
Mystery solved there too. Commander Core cannot control DC, you need the Commander Core Pro in order to control DC.

So..... you have 2 fan controllers in your build and neither can solve all your problems in one.

While you're in there I would probably take out the Nexus hub as it's going to be useless to you and just create some cable clutter. You don't need to of course, it's just something I would do while I was in there.

Edit: Just remove the cables, not the hub itself. I was mistaking the nexus hub for having fixed cabling. Just take the cabling out and put it aside.
 

Scott

Behold The Ford Mondeo
Moderator
I have to admit I got put off when, trying to add them manually, the software presented me with selection of RGB fan types to choose from, but maybe I should have selected one of them and seen where it would take me. I'll try one more time.

You can, but after searching I seen some comments that the Commander Core doesn't support DC control. There is no manual for the Commander Core, or any reference material as it's a bundle, so I'm just going off of word of mouth.
 

jergil

Bronze Level Poster
You can, but after searching I seen some comments that the Commander Core doesn't support DC control. There is no manual for the Commander Core, or any reference material as it's a bundle, so I'm just going off of word of mouth.
Yeah that was a dead end. But at least I can now configure my 3 additional non-existent RGB fans.

@jergil you're going to be the resident fan expert by the time you have gotten through all of this :ROFLMAO:
My first order of business as resident fan expert is to award myself with medal for participation and tell myself to go bleep myself. Politely.
 
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Scott

Behold The Ford Mondeo
Moderator
I'm really curious how I had my system running. I had the Define R6 previously and I don't remember having any issues at all with the fans.

The only thing I can think of is that I had one of the fan connections on the hub and then onto the motherboard. I certainly don't remember any complexity in my setup.

It was super silent too. Eerily so. I set them static as well, just to get a breeze going through.
 

Scott

Behold The Ford Mondeo
Moderator
This is why I keep recommending cases without fans, and then adding iCUE Link fans kits & AIOs.

I can’t be doing with trying to run different fans, makes, ecosystems, RGB LED configs…

There's definitely merit to that. To be fair the OP shouldn't be going through this pain as IMO the builder should be taking this particular setup into consideration. What you describe can be an expensive quality of life upgrade, but that's only where you want to do the tweaking.

If the HUB cannot control non-PMW fans then they should be connected directly to the motherboard at the time of building.

There may be a reasoning or a logic to the way it's been setup. Although, if it's absolutely known that neither the case hub nor the corsair hub can be utilised in this fashion it seems like an oversight to the process or in the training material. This cannot be a one off scenario.
 

jergil

Bronze Level Poster
I'm really curious how I had my system running. I had the Define R6 previously and I don't remember having any issues at all with the fans.

The only thing I can think of is that I had one of the fan connections on the hub and then onto the motherboard. I certainly don't remember any complexity in my setup.

It was super silent too. Eerily so. I set them static as well, just to get a breeze going through.
Did you have a solid top on? I feel like it wouldn't be as much of an issue if the case was more enclosed
 

Scott

Behold The Ford Mondeo
Moderator
Did you have a solid top on? I feel like it wouldn't be as much of an issue if the case was more enclosed

No, I had the louvres on. I was going to go with the solid top if it ended up noisy but it was ridiculously quiet.

Don't sort this with a bandaid. Get it all functioning as it should. If you get the system running properly you'll not only have an aha moment when you recognise how it should sound..... but you'll also have immense pride.

It's something that everyone should do, get their hands in about the system and see how it all works.... but I can understand that a lot don't have the confidence. It's not a positive that you're having to go through this, but it is a positive that your understanding and appreciation for how it all comes together will be realised.
 
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