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 Post subject: Re: Define Mini DAW (Update 5: Corsair RM650 & MSI GTX 760)
PostPosted: Wed Jan 15, 2014 12:26 pm 
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Location: ITALY
axee wrote:
If, however, anyone knows how to overcome 34% fan speed limit, please report!


I mean there's no way: AFAIK the relevant Kepler BIOS registers are currently unknown (EDIT: a little update).

At any rate, give a look to some editor, such as Kepler Golden Bios or Kepler Bios Tweaker (even Svet's VBIOS Tuner might work), perhaps they may let you dial down the fans to a lower floor, but YMMV: actually there is no way of knowing this without modding the BIOS, sit down and see if it makes any difference (just for example, usually on the EVGAs it isn't possible to lower their minimum speed).

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 Post subject: Re: Define Mini DAW (Update 5: Corsair RM650 & MSI GTX 760)
PostPosted: Wed Jan 22, 2014 7:53 am 
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Got a chance to use macho in some other machine, so I decided to try NH-U14S.

NF-A15 fan didn't help that much with macho, nether did any other fan. There was only 2°C difference between passive or active setup. Case fans were, fortunately, running at lower speeds.

NH-U14S improved temperatures for another 3℃, so I recalibrated all fans, to achieve minimum fan speeds.

Final result, same CPU temperatures with all fans running at 550 RPM with p95 & furmark.

Image


Last edited by axee on Fri Feb 28, 2014 12:03 pm, edited 1 time in total.

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 Post subject: Re: Define Mini DAW (Update 5: Corsair RM650 & MSI GTX 760)
PostPosted: Mon Jan 27, 2014 1:46 am 
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Location: Vienna - Austria
axee wrote:
There was only 2°C difference between passive or active setup.


For "passive", do you mean "just the 2 case fans"?

If it's so small difference, why not running with only the 2 fans, and nothing on the heatsink?

PS: great picture by the way!!

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(sold in Dec. 2013) Temjin TJ08-E / Be Quiet Straight Power E9 400W / GA-B75M-D3H / i3-3225 / 8GB / SSD 120GB / HDD 1TB / running Mac OS - Hackintosh


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 Post subject: Re: Define Mini DAW (Update 5: Corsair RM650 & MSI GTX 760)
PostPosted: Mon Jan 27, 2014 2:33 am 
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thierry. wrote:
If it's so small difference, why not running with only the 2 fans, and nothing on the heatsink?


I think he's referring to the previous Thermalright cooler.

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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Mon Jan 27, 2014 3:17 am 
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Location: Vienna - Austria
Correct!
He was talking about the HR-02 (with and without NF-A15)


Is it possible to run this Noctua NH-U14S passive?

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(sold in Dec. 2013) Temjin TJ08-E / Be Quiet Straight Power E9 400W / GA-B75M-D3H / i3-3225 / 8GB / SSD 120GB / HDD 1TB / running Mac OS - Hackintosh


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Mon Jan 27, 2014 6:46 am 
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thierry. wrote:
Is it possible to run this Noctua NH-U14S passive?


It depends: generally speaking (i.e. in an open air scenario, or in some hotbox), no, but under some circumstances, it may do.
He was able to run the HR-02 passive, so probably it may give a try to the NH-U14S (with two case fans), and probably a positive pressure setup may help (but then more probably that not either dust or noise would rise).

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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Mon Jan 27, 2014 10:02 pm 
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Location: Slovenia
thierry. wrote:
PS: great picture by the way!!


Thank you!

I tried adding NF-A15 to Macho, just to see how it works, and it improved temperatures by 2°C. There was almost no difference using 12 cm fan (Slipstream) and that's why I decided to run HR-02 passive in the first place (not because of noise reasons).

Noctua cooler improved temperatures from Macho+NF-A15 for another 3°C, and that allowed me to reduce full load fan speeds even more.


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Tue Jan 28, 2014 12:04 am 
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axee wrote:
Noctua cooler improved temperatures from Macho+NF-A15 for another 3°C, and that allowed me to reduce full load fan speeds even more.


But did you try that Noctua as passive heatsink, without any fan clipped on it?

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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Tue Jan 28, 2014 5:01 am 
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Location: Slovenia
I didn't, it doesn't even look like it's capable or designed for.. I really don't mind having one more fan on heatsink, it doesn't make any difference sound wise. Only tests can tell, but I very much doubt it would perform like HR-02. As I said, I was using Macho passively just because adding 12cm fan didn't change it's performance. If I had good 15cm fan, I would probably use it with HR-02.


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Fri Mar 14, 2014 7:40 pm 
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axee wrote:
As I said, I was using Macho passively just because adding 12cm fan didn't change it's performance. If I had good 15cm fan, I would probably use it with HR-02.


Hi "axee", very nice build!

Maybe I've missed/misread something but I thought you did test the HR-02 with a NF-A15 PWM fan (same one used by "Abula" in his system)...are you saying that for your experience the NF-A15 PWM didn't do well either in terms of performance?


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Sat Mar 15, 2014 5:18 am 
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Location: Slovenia
I'm sure it all depends on the case, fans, airflow and air pressure. Adding slow 12 cm fan didn't even help, 14 cm fan helped a bit, but I wouldn't buy a fan just for that.

If you ask me, it just happens that negative airflow in a well sealed case with 2 fans just a few centimeters away from Macho worked so well that it performed like active cooled heatsink.


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Sun Mar 16, 2014 1:50 pm 
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Joined: Mon Feb 24, 2014 11:33 am
Posts: 19
Thank you for replying axee!


Image[/quote]

So now with your final setup your case fans performance is something like the following?

idle 300 RPM
full load 550 RPM
real world load 450 RPM


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Sun Mar 16, 2014 10:47 pm 
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Location: Slovenia
Yeah, those numbers are about right. Biggest noise source remains GPU, followed by hard drive.


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 Post subject: Re: Define Mini DAW (2014 update: NH-U14S)
PostPosted: Wed Mar 19, 2014 7:02 pm 
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axee wrote:
Yeah, those numbers are about right. Biggest noise source remains GPU, followed by hard drive.


That seems pretty good!!

Regarding the hdd, you decided not to use the Scythe QuietDrive in the end?


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 Post subject: Re: Define Mini DAW (Update 5: Corsair RM650 & MSI GTX 760)
PostPosted: Sat Apr 05, 2014 2:34 pm 
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Joined: Mon Apr 22, 2013 7:07 am
Posts: 18
Location: Rome, Italy
axee wrote:
Image


Coolest Define Mini picture EVER.


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