DAN A4-SFX v4.1

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
if "Noctua NF-A9x14 2.5W" isn't sold separately, which is absolute insanity,
it does not mean that you cannot get it,
and in small cases like "dan a4" it's highly beneficial to have a proper fans.

No, it's not an insanity. Cause you don't need that high spinning fan on something like the Asetek 645LT.

They include it with their small cooler cause that specific cooler can benefit from the higher rpm's. But this isn't the case for better performing coolers, such as an AIO.

So you are saying that Noctua fans aren't "proper fans"? If you say that about Noctua fans - then you are unfortunately not that well informed.
 

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
they have multiple models and some of they is crap.

and you always will benefit from a higher air flow !
especially in the small space like dan a4 has.

Like what exact models of theirs are crap?...

Also, you don't have to edit your last post to answer a new reply - just reply in a new post instead.
 

safenox

Efficiency Noob
New User
May 12, 2020
7
1
That site you linked isn’t a stress test, it’s a website with a database of different performance data for different components.




The fan he’s referring to is the one included with the Noctua cooler and isn’t sold seperately. The slower rpm one is the one that is sold as a stand alone fan.

The reason the higher rpm fan is included with the low profile heatsink is because it’s a very small cooler and hence could potentially benefit from a faster fan. In order to provide decent cooling efficiency.

And no, you don’t actually need it. It just spins faster, ie has a higher rpm. Which results in more noise.

I have the slower one and it works just fine on my 645LT.

If you configure your system, ie get your clocks and voltages in check, you’ll see a big improvement. Try that first, since it’s free and only requires time.

Getting new fans, coolers etc costs and isn’t really proven to give enough advantage in terms of cooling efficiency to justify spending the extra cash on it.

I will try this my friend!

What would be the right temperature to stay?
 

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
I will try this my friend!

What would be the right temperature to stay?

Umm, personally I'm not that into temperatures regarding the 9900K, since I don't have it myself. Although I found an thread on TomsHardware regarding safe temperatures for an OC on 9900K. Could be good guidelines.
Core temperatures above 85°C are not recommended. Core temperatures below 80°C are ideal

In the same thread though, several did mention that the 9900K runs hot and hotter than most other CPUs as well. And some even recommended that it needs dual and/or triple fan cooling solutions. So something to keep in mind. Hence why I recommended undervolting your CPU in my previous post.
 

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
like "Noctua NF-A9x14" is a crap and many other fans they have,
however, only in terms of performance they put in them,
the quality is superior for any model.

So you are basically saying that the entire PC enthusiast community is completely wrong?... Since everyone is completely the opposite.
Noctua fans are pretty much the best fans there is on the market. There's a reason Noctua have the legendary reputation that they have.

They are expensive yes, but they are still at the top in terms of performance, quality and durability on the market.

And again, don't edit your previous post. Reply in a new one please, otherwise the chances of you not getting a reply to your post are limited due to people may have to look through pages to find your latest reply.
 

x111

SFF Lingo Aficionado
Aug 5, 2019
114
45
So you are basically saying that the entire PC enthusiast community is completely wrong?... Since everyone is completely the opposite.
Noctua fans are pretty much the best fans there is on the market. There's a reason Noctua have the legendary reputation that they have.

They are expensive yes, but they are still at the top in terms of performance, quality and durability on the market.

And again, don't edit your previous post. Reply in a new one please, otherwise the chances of you not getting a reply to your post are limited due to people may have to look through pages to find your latest reply.

Noctua fans are the best fans that money can buy,
but they are making bad ones too or I would say cheaper ones with crap performance.

For example "Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin"
is absolute beast, maximum airflow and still very quite at 2000rpm !!
I cannot even believe that it is that quite at 2000rpm.
I put two of them under the case and now I have just over 30C on idle.

the other beast is "Noctua NF-A9x14 PWM 2.52W"

and one more beast "Noctua NF-P12 redux-1700 PWM"

cheap and quite but way louder than "Noctua NF-A12x25 PWM"

My Noctua L9A Chromax, has just arrived. Couldn't turn it down as got it for £25! Hopefully fit that today and do some temperature testing to see how it compares to the 645lt I have in there. It'll be more than enough to handle my undervolted 3600. Plan is to get some PSlate cables when the store is open again and my funds allow it, then get the AIO back in there. Now I have a spare slim fan - Any point in mounting it below the motherboard? My M.2 is on the front, under a heatsink and fan - So I don't think there's much need?


"Noctua NF-A9x14 HS-PWM chromax.black" beautiful fan, now noctua sell it separately !!


there is always a need in extra air flow,
you want to maximize it as much as you can.

.
 
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swaggywaggy

Average Stuffer
May 3, 2020
65
13
My Noctua L9A Chromax, has just arrived.
Couldn't turn it down as got it for £25!

Hopefully fit that today and do some temperature testing to see how it compares to the 645lt I have in there.

It'll be more than enough to handle my undervolted 3600.

Plan is to get some PSlate cables when the store is open again and my funds allow it, then get the AIO back in there.

Now I have a spare slim fan - Any point in mounting it below the motherboard? My M.2 is on the front, under a heatsink and fan - So I don't think there's much need?
 

SiKiaTriK

Cable-Tie Ninja
Mar 28, 2019
166
147
You want as much hot air out of that case (or at least moving) as you can, and that fan of yours is one of the best so... my answer is a solid YES!
 

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
My Noctua L9A Chromax, has just arrived.
Couldn't turn it down as got it for £25!

Hopefully fit that today and do some temperature testing to see how it compares to the 645lt I have in there.

It'll be more than enough to handle my undervolted 3600.

Plan is to get some PSlate cables when the store is open again and my funds allow it, then get the AIO back in there.

Now I have a spare slim fan - Any point in mounting it below the motherboard? My M.2 is on the front, under a heatsink and fan - So I don't think there's much need?

Here's a video regarding fans and their placement in the Dan A4. Specifically regarding putting the bottom fan under the motherboard and how it compares to if you put an sidefan over the motherboard.


Here you also have videos from the same person testing the L9a on an 3700X as well as the bottom the 645LT, where he also compares that to the L9a:


 
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safenox

Efficiency Noob
New User
May 12, 2020
7
1
Umm, personally I'm not that into temperatures regarding the 9900K, since I don't have it myself. Although I found an thread on TomsHardware regarding safe temperatures for an OC on 9900K. Could be good guidelines.


In the same thread though, several did mention that the 9900K runs hot and hotter than most other CPUs as well. And some even recommended that it needs dual and/or triple fan cooling solutions. So something to keep in mind. Hence why I recommended undervolting your CPU in my previous post.

I undervolted the i9 9900k and it keeps getting hot.

I put -0.65 in the bios.

It gave 94 degrees in 7 minutes of testing.

Is the asetek 645lt in trouble? I put my hand on the hose and apparently it's normal. One hose is hot and the other is a little hot.

The thermal paste that is in the processor: thermal grizzly kryonaut


Undervolting -0.65
 

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
I undervolted the i9 9900k and it keeps getting hot.

I put -0.65 in the bios.

It gave 94 degrees in 7 minutes of testing.

Is the asetek 645lt in trouble? I put my hand on the hose and apparently it's normal. One hose is hot and the other is a little hot.

The thermal paste that is in the processor: thermal grizzly kryonaut


Undervolting -0.65

What exactly do you mean by ” -0,65 ”? Does it say -0,65 in the BIOS or did you go down 0,65V in the BIOS?

What you need to keep in mind with the Aida64 test is that your CPU WILL get hot, it’s supposed to.

That test is an extreme test for the CPU, it’s basically pushing your CPU balls to the walls, 100%. There’s no workload out there like this test. This test is basically the absolute worst case scenario for your CPU.

So it’s normal for your CPU to get high temps during this test - they are supposed to.

What this test essentially does is that it puts the absolute worst load you can think off on your CPU. It does this to test your CPU, in order to make sure your system is stable due to you have undervolted.
Since if it’s not stable, the last thing you want during a game or so, is for your PC to crash because of it. Now don’t worry if this happens, it’s nothing dangerous or won’t damage your PC.
This is why we stress test :)

Also during your test, check these boxes:

Stress CPU, Cache and FPU.

This ensures your CPU are pegged, this is a workload that will literally put your CPU to it’s knees.

And don’t worry about the AIO, it takes time for water to heat up and will take time for your AIO to heat up and reach equilibrium (ie, the max temperature the test is making your CPU to reach).

The reason why one tube is hotter than the other is because that is where the warm water is running from the CPU, ie has cooled it and then goes through the rad where it gets cooled down by the fan on the radiator and then goes back, cooled, in the other colder tube and back to the CPU to cool it again.
This is how every water cooling loop works and the water flows fast in the loop.

I’d also recommend using these programs to monitor everything;

HardwareInfo - Be sure to keep an eye out on the CPU Package - This is the overall temp of your CPU during the test.

Also in this software, take a picture of the ”VCore”, this is the Voltage your CPU is running at and will give me a more accurate reading of what your voltage is. Rather than your ” -0.65”.

This is off the top of my head, I’ll later on today look deeper into my own PC and what softwares, settings etc I used for my test. And get back to your for a better testing overall.
 
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x111

SFF Lingo Aficionado
Aug 5, 2019
114
45
ok ppl,
here is a review of my build
enjoy. :)
 
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swaggywaggy

Average Stuffer
May 3, 2020
65
13
Having full sized ATX build for my whole PC life, 20 plus years - It's amazing to think I haven't lost any power by going so small.

When is the last time people have used more than one PCIe slot? Of course I know there are people out there that like their sound cards, capture cards etc... But for the average PC user and PC gamer, ITX is incredible. So happy I went with the DanA4
 

safenox

Efficiency Noob
New User
May 12, 2020
7
1
What exactly do you mean by ” -0,65 ”? Does it say -0,65 in the BIOS or did you go down 0,65V in the BIOS?

What you need to keep in mind with the Aida64 test is that your CPU WILL get hot, it’s supposed to.

That test is an extreme test for the CPU, it’s basically pushing your CPU balls to the walls, 100%. There’s no workload out there like this test. This test is basically the absolute worst case scenario for your CPU.

So it’s normal for your CPU to get high temps during this test - they are supposed to.

What this test essentially does is that it puts the absolute worst load you can think off on your CPU. It does this to test your CPU, in order to make sure your system is stable due to you have undervolted.
Since if it’s not stable, the last thing you want during a game or so, is for your PC to crash because of it. Now don’t worry if this happens, it’s nothing dangerous or won’t damage your PC.
This is why we stress test :)

Also during your test, check these boxes:

Stress CPU, Cache and FPU.

This ensures your CPU are pegged, this is a workload that will literally put your CPU to it’s knees.

And don’t worry about the AIO, it takes time for water to heat up and will take time for your AIO to heat up and reach equilibrium (ie, the max temperature the test is making your CPU to reach).

The reason why one tube is hotter than the other is because that is where the warm water is running from the CPU, ie has cooled it and then goes through the rad where it gets cooled down by the fan on the radiator and then goes back, cooled, in the other colder tube and back to the CPU to cool it again.
This is how every water cooling loop works and the water flows fast in the loop.

I’d also recommend using these programs to monitor everything;

HardwareInfo - Be sure to keep an eye out on the CPU Package - This is the overall temp of your CPU during the test.

Also in this software, take a picture of the ”VCore”, this is the Voltage your CPU is running at and will give me a more accurate reading of what your voltage is. Rather than your ” -0.65”.

This is off the top of my head, I’ll later on today look deeper into my own PC and what softwares, settings etc I used for my test. And get back to your for a better testing overall.


Hello Friend, Yes! I put in the bios -0.65V and the temperature did not improve. While playing COD Warzone the CPU temperature reaches almost 100 degrees.

I took some prints, below:





 

safenox

Efficiency Noob
New User
May 12, 2020
7
1
ok ppl,
here is a review of my build
enjoy. :)

I'll check!

Thank you my friend!
 

swaggywaggy

Average Stuffer
May 3, 2020
65
13
 

swaggywaggy

Average Stuffer
May 3, 2020
65
13
What's a good voltage to shoot for when OCing Ryzen? I had a first gen 1600 and that needed 1.37v for 3.7Ghz.

Now I have a 3600 and would like it to sit around 4Ghz if possible.

Voltages I see online vary from 1.1 to 1.4
 

x111

SFF Lingo Aficionado
Aug 5, 2019
114
45
What's a good voltage to shoot for when OCing Ryzen? I had a first gen 1600 and that needed 1.37v for 3.7Ghz.
Now I have a 3600 and would like it to sit around 4Ghz if possible.
Voltages I see online vary from 1.1 to 1.4

to be safe you cannot exceed 1.25V !!
that could be applied to other amd cpu.

.
 
Last edited:

Dawelio

Awesomeness
SFFn Staff
Dec 17, 2017
530
445
What's a good voltage to shoot for when OCing Ryzen? I had a first gen 1600 and that needed 1.37v for 3.7Ghz.

Now I have a 3600 and would like it to sit around 4Ghz if possible.

Voltages I see online vary from 1.1 to 1.4

To be honest, Ryzen 3rd gen actually can go for as high as 1.5V, which is normal. What many people don't realize (and this was also confirmed on an Reddit post I believe) is that the way Ryzen 3000 series work are completely different from other CPUs in terms of voltages.
And that is they do run at high voltages and are supposed to.

Here's a quote from AMD regarding the voltages on Ryzen 3rd gen:

Please note that it is totally normal for your Ryzen to use voltages in a range of 0.200V - 1.500V -- this is the factory operating range of the CPU.

And here you can read the entire post if you'd like:

to be safe you cannot exceed 1.25V !!
that could be applied to other amd cpu.

So what x111 says regarding that you cannot exceed 1.25V isn't proven and the user didn't say either at what frequenzy that 1.25V would run at either?

It also doesn't exactly say anything about this, in their provided link above, that you CAN'T - Only that it can hurt the CPU in the long term by going with voltages above that.

The reason their provided article states that only 6% could achieve that manual overclock is that AMD has already more or less cranked their CPUs to the max with their Ryzen 3000 series. In other words, there's not a whole lot more juice that you can cram out of them than what you get out of the box.

But that is with literally any CPU in history. that the higher voltage you go, the warmer it will run and hence decreases it lifespan. It's one of the long term risks you take with/when overclocking.

Keep in mind though as well, that every CPU is different. You may have a so called "Golden chip", ie you might be able to have a higher frequenzy to a lower voltage than mine. It's just how the silicon works really.

For example, Glob3Tech on Youtube, he managed to get his 3700X stable at 4GHz at 1.075V. Mine couldn't, I needed 1.125V at minimum to run at 4GHz without crashing. So now I'm at 1.130V just to be on the safe side.
 
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