Recomended fans for Ryzen 2 cpu heatsink?

[Roddey]

I would like to change my 120 mm cpu fans as the ones I have work well and look nice with the lighting, but are not silent. I can hear them spinning up even with the new abba bios and sitting them to 1000 rpm. Could I get a suggestion as to good cpu fans that are silent even at max rpm and can be used on a cpu? There is mounts for two fans on the cpu in a push pull configuration.

 

[notb]

Does this question concern the cooler in your System Specs or a different machine?
The Enermax you have has 140mm fans.

Fans are mounted to the heatsink (radiator), not the CPU.
If this is about another PC, what cooler does it have? And which fans (if not he default ones)?

 

[Roddey]

Yes its the heatsink mounts. 120mmx25mm. Assumed people would know I meant the heatsink.

 

[Vario]

I would like to change my 120 mm cpu fans as the ones I have work well and look nice with the lighting, but are not silent. I can hear them spinning up even with the new abba bios and sitting them to 1000 rpm. Could I get a suggestion as to good cpu fans that are silent even at max rpm and can be used on a cpu? There is mounts for two fans on the cpu in a push pull configuration.

Noiseblocker, BeQuiet, Noctua

 

[notb]

Yes its the heatsink mounts. 120mmx25mm. Assumed people would know I meant the heatsink.

So what about my question? Which cooler is it and what fans?

It's hard to suggest something quieter if we don't know which fans you're using now.
Maybe they are considered silent and you're simply very sensitive. In that case replacing won't help, but limiting rpm might.

 

[commission3r]

I would like to change my 120 mm cpu fans as the ones I have work well and look nice with the lighting, but are not silent. I can hear them spinning up even with the new abba bios and sitting them to 1000 rpm. Could I get a suggestion as to good cpu fans that are silent even at max rpm and can be used on a cpu? There is mounts for two fans on the cpu in a push pull configuration.

Noctua NF-A12x25 full stop
at 1000 rpm, you won't know its there

 

[FreedomEclipse]

Noctua NF-P12 Redux - they are ludicrously cheap and run so well.

They have 1300rpm as well as 1700rpm speeds- Make sure you get the PWM varient so your motherboard can control them

 

[Roddey]

No reason to be rude.
So what about my question? Which cooler is it and what fans?

It's hard to suggest something quieter if we don't know which fans you're using now.
Maybe they are considered silent and you're simply very sensitive. In that case replacing won't help, but limiting rpm might.

Yes its the Enermax fans in the sytem specs. Theirs not a hum, or noise like that, but the woosh of air across the blades caused by the fans spinning up and down. I am running at 1000 rpm so that is a reduction for 1800 rpm fans but its still too loud. Even the wife noticed and asked me why its so pronounced over the other fans in the case. I generally like silence or as close as I can get, but was a miner most my life so noise I am used to.

 

[commission3r]

Noctua NF-P12 Redux - they are ludicrously cheap and run so well.

They have 1300rpm as well as 1700rpm speeds- Make sure you get the PWM varient so your motherboard can control them

problem is a single NF-A12x25 is better and quiter which is why i've ended using my 2 p12s as intake on the roof of the ld01

 

[notb]

Yes its the Enermax fans in the sytem specs. Theirs not a hum, or noise like that, but the woosh of air across the blades caused by the fans spinning up and down.

You see? This is the answer I was hoping for. Life is usually more complicated than "buy Noctua!".
As I said earlier: your cooler is made for 140mm fans and that's what it should be shipped with - not 120mm.
If you hear 120mm fans at 1000rpm they must be pretty bad.
Buy good 140mm fans. There's a decent choice from Noctua, be quiet and Phanteks.
If they're still too loud at 1000rpm, you'll have to think about other possibilities (like... putting the case further away )

 

[Roddey]

You see? This is the answer I was hoping for. Life is usually more complicated than "buy Noctua!".
As I said earlier: your cooler is made for 140mm fans and that's what it should be shipped with - not 120mm.
If you hear 120mm fans at 1000rpm they must be pretty bad.
Buy good 140mm fans. There's a decent choice from Noctua, be quiet and Phanteks.
If they're still too loud at 1000rpm, you'll have to think about other possibilities (like... putting the case further away )

None of the Enermax ETS-T50 series ship with a 140mm fan. https://www.enermax.com/home.php?fn=eng/product_a1_1_1&lv0=49&lv1=103&no=329

 

[tabascosauz]

problem is a single NF-A12x25 is better and quiter which is why i've ended using my 2 p12s as intake on the roof of the ld01

I can definitely attest to the quietness of the new A12x25. Two of them replaced a single F12 PWM, and still manage to be significantly quieter at any PWM speed from 1000 to ~2050rpm.

And that's in an NCase M1, where they're all pressed up against vented panels and pulling air through an appreciable amount of restriction, something the F12 didn't do very well.

But I have to wonder if your Ryzen system isn't set up to be as quiet as it could be, and whether the Enermax fans might actually be just fine for you. Ryzen 3000 default behaviour with CPB on and PBO on is a very bursty and boosty experience, where the slightest not-insignificant activity will trigger max boost on a few cores. This usually results in fan speed fluctuations happening all the time. And if this is the case, even an A12x25 may not leave you satisfied, as it still has to ramp up. Compared to the F12, there's much less whirring and more whooshing, but...well, there's more whooshing.

Try dropping a slight offset to Vcore. It can bring temps down quite a bit in light to moderate load, even if CPB and PBO stay on. Otherwise, if you don't want fan fluctuations at all, you'll have to set clocks and voltages manually so it'll always stay at that speed and behave more like a traditional Intel system.

Depending on the temperatures that your CPU generally sees under the T50, you can also try setting up a custom fan curve that either raises the minimum fan speed for less difference, or delays the ramp up until the chip is hotter.

 

[Xzibit]

problem is a single NF-A12x25 is better and quiter which is why i've ended using my 2 p12s as intake on the roof of the ld01

For me
P12 are quiet up until 800rpm
A12x25 are quiet up until 1000rpm.

Not to mention at those speeds the P12 have a lot more pressure, They can be used in more situations if the pressure is needed.

Also $35 A12x25 vs $14 P12. At top speed the A12x25 have a more pleasant sound then the P12 but the P12 use 50% less power for more pressure throughout its entire RPM range.

 

[Roddey]

Thanks for all the suggestions. I need to do some reading now.

 

[notb]

None of the Enermax ETS-T50 series ship with a 140mm fan. https://www.enermax.com/home.php?fn=eng/product_a1_1_1&lv0=49&lv1=103&no=329

LOL. That is just weird.
Enermax sells this cooler with a better 140mm fan in Europe:

Enermax - ETS-T50 AXE Silent Edition - CPU Air Cooler

The ETS-T50 AXE Silent Edition is a powerful CPU cooler with a 14cm high-pressure fan with patented TwisterLager™ technology.

www.enermaxeu.com

If you can fit 140mm and you know how to mount them, I'd do that. Your 3800X will be testing the limits of this cooler anyway.

Keep in mind 2 high quality 120mm fans will cost around $50 (over $60 for dual Noctua A12x25).
You should consider selling this Enermax and getting a better 140mm cooler.
Dark Rock 4 and NH-U14S can be had for around $70 and each will handle your 3800X easily.

 

[freeagent]

Noctua NF-A12x25 full stop
at 1000 rpm, you won't know its there

Its a 60cfm fan at full speed, I would expect it to be quiet.

 

[Xzibit]

Its a 60cfm fan at full speed, I would expect it to be quiet.

The knock on it is it has to be at top RPM for the pressure. Other fans can match it at much lower rpm and higher cfm. Its advantage is better dba at the expense of pressure through the rpm range.

A12x25
900 RPM 0,41 mm H₂O 39,4 m³/h
1300 RPM 1,05 mm H₂O 64,5 m³/h
1700 RPM 1,65 mm H₂O 84,5 m³/h

P12
900 RPM 1,21 mm H₂O 63,4 m³/h
1300 RPM 1,68 mm H₂O 92,3 m³/h
1700 RPM 2,83 mm H₂O 120,2 m³/h

 

[sutyi]

The knock on it is it has to be at top RPM for the pressure. Other fans can match it at much lower rpm and higher cfm. Its advantage is better dba at the expense of pressure through the rpm range.

A12x25
900 RPM 0,41 mm H₂O 39,4 m³/h
1300 RPM 1,05 mm H₂O 64,5 m³/h
1700 RPM 1,65 mm H₂O 84,5 m³/h

P12
900 RPM 1,21 mm H₂O 63,4 m³/h
1300 RPM 1,68 mm H₂O 92,3 m³/h
1700 RPM 2,83 mm H₂O 120,2 m³/h

I'm running a P120 BioniX on my Kabuto 3, quite happy with it.

 

[Zach_01]

I would like to change my 120 mm cpu fans as the ones I have work well and look nice with the lighting, but are not silent. I can hear them spinning up even with the new abba bios and sitting them to 1000 rpm. Could I get a suggestion as to good cpu fans that are silent even at max rpm and can be used on a cpu? There is mounts for two fans on the cpu in a push pull configuration.

You have the "Enermax ETS-T50 AXE" (product name ETS-T50A-BVT) Right?
This has 1x120mm Fan, 800~1800rpm, 25dBA...

You can change the fan with this:

Fan - Category - Products - ENERMAX Technology Corporation

ENERMAX SquA RGB fan series is one of the best-selling case fans, supports ARGB sync with motherboard software; has 1 pack and 3 pack variants.

www.enermax.com

ENERMAX - Product

www.enermax.com

Enermax T.B. Silence PWM 12cm
It is silent enough, 120mm, 500~1500rpm, 71cfm/121m³/h air flow and way below 20dBA. I have plenty of these in 3 systems and I bearly hear them even at 1500rpm. No LEDs though...
Its a really really nice fan!

 

[Roddey]

Well an update. Looked at my options and found out that white low noise lighted fans are an critically endangered species.
My issue with the fans I have is that while I can run them silent enough to 70c, at 70c-75c the bios fan control will take the fans to 100% with no user input option. So to maintain the same black and white look to the machine, I decided to purchase some fan rpm reducers to lower the top rpm of the fans. Hope it works and thanks again for everyone input.
Even though I took a different path, the suggestions led me to find the inline resistors.

 

[Ruru]

Corsair ML120

 

[tabascosauz]

Well an update. Looked at my options and found out that white low noise lighted fans are an critically endangered species.
My issue with the fans I have is that while I can run them silent enough to 70c, at 70c-75c the bios fan control will take the fans to 100% with no user input option. So to maintain the same black and white look to the machine, I decided to purchase some fan rpm reducers to lower the top rpm of the fans. Hope it works and thanks again for everyone input.
Even though I took a different path, the suggestions led me to find the inline resistors.

Resistors are a good idea to reduce noise if you don't mind less airflow. But how often exactly are you hitting 70-75c outside of stress testing? That's kinda concerning in itself. What are your voltages looking like at load? A 120mm tower shouldn't really be having trouble with a 3800X at stock.

100% fan speed is inevitable at high temperatures; you can delay it with a high fan curve, but at some point you still have to get rid of that heat.

 

[Roddey]

Resistors are a good idea to reduce noise if you don't mind less airflow. But how often exactly are you hitting 70-75c outside of stress testing? That's kinda concerning in itself. What are your voltages looking like at load? A 120mm tower shouldn't really be having trouble with a 3800X at stock.

100% fan speed is inevitable at high temperatures; you can delay it with a high fan curve, but at some point you still have to get rid of that heat.

Its the behavior of the Ryzen 2. It doesn't surge as much as it used to with the new bios, but still it does sometimes. Idle at 1000 rpm with the fan filters in place I get about 34c. Testing with benchmarks gets me up to around to 75c. I think that's in the expected behavior margins for Ryzen 2 from what I have read. I did take the heat-sink off and reapplied thermal compound once and it stayed the same temps.
These fans will ramp up to 1800 rpm and I added another fan on the heat sink. Testing has shown me that after a certain rpm any effects are negligible as far as continuing to lower cpu temp. I think that rpm point is about 1300 rpm with two fans. I am going to try to lower top rpm to about to somewhere around that 1300 number so I think that maybe, will require more testing once they arrive, it will still hit a respectable cooling rate. I am not trying to get down to 31-32c like I have when testing, to much noise. Just keep it cool enough to not cause issues.
Of course, my plans don't always work out.

 

[tabascosauz]

Its the behavior of the Ryzen 2. It doesn't surge as much as it used to with the new bios, but still it does sometimes. Idle at 1000 rpm with the fan filters in place I get about 34c. Testing with benchmarks gets me up to around to 75c. I think that's in the expected behavior margins for Ryzen 2 from what I have read. I did take the heat-sink off and reapplied thermal compound once and it stayed the same temps.
These fans will ramp up to 1800 rpm and I added another fan on the heat sink. Testing has shown me that after a certain rpm any effects are negligible as far as continuing to lower cpu temp. I think that rpm point is about 1300 rpm with two fans. I am going to try to lower top rpm to about 1300-1500 rpm so I think that maybe, will require more testing once they arrive, it will still hit a respectable cooling rate. I am not trying to get down to 31-32c like I have when testing, to much noise. Just keep it cool enough to not cause issues.
Of course, my plans don't always work out.

Like I previously asked, what do your volts look like? There is an offset setting, make use of it. 75c is no sweat at all in benchmarks, which is why I asked; Ryzen is smart enough to pull back the clocks to make sure power and temps don't go through the roof. Now, if you were peaking to 75c while just using Windows or lightly threaded programs and games, that would be a different problem...

As long as your old fans aren't diabolically loud, finding better fans and using LNA is missing the problem itself, because those new fans will still be hitting the same speeds, and best case scenario they'll just sound slightly different in pitch. Trust me, I've been through three different coolers, with three new fans and half a dozen fan setups. To tame the aggressive boost algorithm, you have to explore your BIOS. See if CPB on/off makes a difference. See what PBO on/off does. Experiment with voltage offset or even fixed clock/Vcore and test for stability in both full load and light load (both if using stock boost).

And no, I don't do the fixed 4.1GHz clock anymore. I just use the boost settings on ABB and offset for -0.075V with standard LLC. The temps have dropped, but the real winner is that the fan ramping is basically gone. And that's in a 12.6L case with just a push-pull U9S and two NF-A12x25 for intake.

Asus is notorious for overvolting their default Vcore settings out of the box; this 500-series chipset generation is no different. Chances are, you have room to undervolt here.

 

[Roddey]

Like I previously asked, what do your volts look like? There is an offset setting, make use of it. 75c is no sweat at all in benchmarks, which is why I asked; Ryzen is smart enough to pull back the clocks to make sure power and temps don't go through the roof. Now, if you were peaking to 75c while just using Windows or lightly threaded programs and games, that would be a different problem...

As long as your old fans aren't diabolically loud, finding better fans and using LNA is missing the problem itself, because those new fans will still be hitting the same speeds, and best case scenario they'll just sound slightly different in pitch. Trust me, I've been through three different coolers, with three new fans and half a dozen fan setups. To tame the aggressive boost algorithm, you have to explore your BIOS. See if CPB on/off makes a difference. See what PBO on/off does. Experiment with voltage offset or even fixed clock/Vcore and test for stability in both full load and light load (both if using stock boost).

And no, I don't do the fixed 4.1GHz clock anymore. I just use the boost settings on ABB and offset for -0.075V with standard LLC. The temps have dropped, but the real winner is that the fan ramping is basically gone. And that's in a 12.6L case with just a push-pull U9S and two NF-A12x25 for intake.

Asus is notorious for overvolting their default Vcore settings out of the box; this 500-series chipset generation is no different. Chances are, you have room to undervolt here.

.3-.4 to 1.488 depending on load.

Also I am aware of adding an offset to vcore, turning off or on pbo, ryzen power modes, etc. From what I can observe my machine is running correctly. I like the performance I am getting and dont want to lower it. So taking the edge off boosting fan noise is what I am going to try first.