Computer fans keep stirring up/down

[Deleted member 44897]

I have recently finished a new PC build: an Asus Maximus VIII Gene motherboard with an Intel i7-6700K processor and 16GB DDR4 memory. This tower houses all Cooler Master (PWM) fans.

It seems as though the fans stir louder and softer intermittently. I would assume that this is because they are each PWM -- they spin higher as workload increases and lower when resources regulate. However, it happens more frequently than I think it should.

I accessed Asus Q-Fan and AI Suite to observe the fans' visual readings. I tried an exercise to reproduce the problem manually: in Paint Shop Pro, I enlarged an image by 500%. The fans spun louder until the operation was done. Whilst this was happening, Asus reported not one fan, but EACH fan stirring up while the operation was conducted.

In the BIOS Q-Fan Control, I tried the Fine Tuning method to "Optimize All Fans". After this was finished, I clicked [OK]...but then the system crashed. I have not saved any profiles from the experiment, so all fans are still set at default operating settings.

I wouldn't say the intermittent fan stirring is an issue, but it is certainly annoying, especially under ordinary PC operation. I would like to hear any ideas to regulate/quiet the fan speeds -- of course, without impacting the temperature and stability of the CPU and motherboard.

Thank you in advance!

 

[Ne0Wolf7]

You can set a custom fan curve in BIOS. You get to choose how to fans speed up and slow down this way, just make sure you aim for below eighty (meaning by the time your CPU reaches eighty, you fans should be full speed).

 

[Deleted member 44897]

Ne0Wolf7, thanks for your response. I believe I'm still a little unclear (and apprehensive) about this process, or maybe I'm misunderstanding your reply.

Knowing I posted this topic in January, I just went off-task for a while and ignored it. Ultimately, I feel that I don't have enough information and I'm not exactly sure how to proceed; I feel like I need more guidance.

The issue, reiterated, is that when certain tasks are performed, every fan stirs up and back down when activity has normalized. I wish to normalize/regulate the speed of these fans to a constant -- however, I want to do so without compromising the stability and temperature of the CPU and motherboard.

When purchasing this set of PWM fans for my case, I didn't anticipate such audible fluctuations in noise. I know ASUS has fan monitoring software available; I just need to learn how to utilize it and correct the issue accordingly. My CPU temperature averages 32°C. Would it be suitable (and maybe an end solution) to change all fans from PWN mode to normal mode?

Any further suggestions would be appreciated. Thanks!

 

[Deleted member 44897]

This thread seems to have fallen pretty fast, but fortunately, I'm on to something.

I found the time to tinker with Asus Fan XPert 3. Doing a little tweaking, I was able to eliminate the random ramping up/down of all the fans during the most mundane tasks. Also, in doing this, I successfully set a profile for low fan noise but stable CPU cooling. (It consistently sits at 34C).

But what I'm wondering is, are these readings too good to be true? Granted, I don't do any really graphics/video intensive work, but I want to be sure that I've finally resolved the problem doing some common sense tweaking in Fan XPert 3. Matter of fact, maybe I shouldn't have bought PWN fans. I considered buying a set of regular fans, but I wonder if now I'm better off with my PWM's set at a low spin rather than non-PWM fans that might spin louder consistently...?

In dabbling in Fan XPert and looking at the graphs, I'm under the assumption that the yellow dot should fall somewhere in line with the blue upward incline; am I correct? I still feel that, although the ramping is gone and I'm saving fan energy, that I haven't done it justice.

If someone could please guide me and convince me that I'm on the right track here, this would be much appreciated. Thanks!