Aurora R9, Fans stalling?

@digitalwiz :

My 2 cent's about the remaining RPMs on the fans. There's a great article here on radiators:

https://www.ekwb.com/blog/radiators-part-2-performance/

Here's where I find it interesting: "You can spot that the thicker the radiator is, the better it responds to faster fans, i.e. more airflow."

After reading that article a few months ago, I decided to pull the plug on my sandwich/ case cutting the R8 because that 120mm AIO radiator has hit its limit. At that time I was pulling north of 150W on the 9600K and I figured that it's better to just go to a bigger case for bigger/ thicker radiator.

Also, at 1800 RPM, the ML120 Pro isn't subtle anymore. In fact, when all 6 of my ML120 Pros go full throttle, the neighbor's V8 Ram rumble is inaudible.

Another option is to use a 3rd party fan controller. Stick a DC signal or something to the tach readout pin on the R8 mobo so that it doesn't throw a boot error.

@r72019 :

I guess it's a fair world. You get the RPM readout. We get the 9th gen CPUs.

I have an R7, actually.  The R7 8 9 all run on a z370 board.   R8 and 9 got the new AWCC software. 

I couldn’t agree more with that. Stock fans unfortunately are the only solution for me at this time. 

I have 2 ml120's from another build I can use. If I can replace the front fan, and add a second to increase static pressure, it might balance with the gpu fan output and top fan cfm output at some point along a custom fan curve. That could be quieter and provide more effective cooling. 

If I uninstall awcc, what you do suggest I replace it with? 

I never guessed I'd have to tweak this system so much to have an effective and worry free setup. 

ML120 without Pro, you'll get a BIOS error on the TOP_FAN header. I suppose your plan is like this:

TOP_FAN - y-splitter with the tach info coming from the ML120 Pro. ML120 is the slave in this config. Best as a pull fan just to give that extra little to wick off heat from the top of the radiator.

FRONT_FAN - ML120 Pro. No problem.

There's no way to control fan curve without AWCC. I tried HWinfo but could only see the RPM, not control it via a curve.

Extreme alternative is to abandon controlling fan using the mobo headers. Just feed it something to keep it satisfied i.e. 2 small DC fans to bypass BIOS error. Control fans using Corsair Commander or EK Loop Connect.

LOL, yeah, I guess. 

At this point, I'm accepting the stock fan's noise for the additional cooling. I replaced the front stock fan with the 2 ml120's, not pro's, I purchased by accident. I run the top fan at 100% offset and the fronts at 70% on the curve. 

The fans still studder from time to time, but seem to recover quickly. 

The 2080ti runs at 82c, no matter what in fortnite. 

The good news is that the increased airflow from the extra fan is benefiting cooling. My son is playing fortnite and cpu temps are in low to mid 50's instead of hi 60's to low 70's with occasional spikes to the low 90's. 

I may do some more tweaking, but want to keep as stock as possible. 

I don't have any 3 lead fans on hand, so I'm gonna work with what I have. 

I knew that the dell motherboard would be a turd, and I never had an Alienware or xps(going back to the 720i) that didn't have some kind of fan issues. But I chose what I hoped would be a no hassle setup over the time and cost of building my own. When it comes to Dell's 2 dollar motherboard, you get what you pay for. 

Also, I painted the case and it looks so much better.