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Replacing PSU fan in Silverstone SFX 450w...?

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post #51 of 68 (permalink) Old 02-03-2014, 08:20 PM
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Originally Posted by iamkraine View Post

I appropriate all your sage advice. Just ordered Gentle Typhoon ap-15, give em a try. Question though, would it be possible to hook up the fan to the PWM on the motherboard or will the PSU not work if there no fan connected to it?

What do you thinks of and is it worth getting the noctua nf-f12 for the PWM functionality?

The PSU should power on without the fan attached (there's no RPM wire so it doesn't know the status of the fan anyway) but it seems risky because with the fan controlled through the motherboard there would be no easy and reliable way to link the fan speed to the internal PSU temp.

That said I would go for the P12 PWM over the F12 among the Noctua fans, according to SPCR the F12 is not as smooth: http://www.silentpcreview.com/article1343-page5.html

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post #52 of 68 (permalink) Old 02-03-2014, 08:27 PM
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Originally Posted by WiSK View Post

PSU doesn't have PWM. It's purely voltage controlled.

Noctua is a lot of hype. They look so horrible, they must be good. They make like 5 different 120mm fans, targetted at PC enthusiasts with Linus paid to promote them. Dodgy specs: high airflow and high static pressure and low noise and only draws max 0.05 amps? No PQ curve shown.

While Nidec Servo make millions of fans for industry. I trust their numbers, as well as my own experience with their products. Here's the catalog http://catalog.nidec-servo.com/products/pdf/D1225Cen.pdf and you can listen to them here http://martinsliquidlab.org/2013/05/07/fan-testing-round-12/

But fans are one of those things that everyone swears that the ones they bought are the best, even if they never tried anything else. So opinions differ wildly smile.gif

The site you linked mentioned that "The two GT fans have the lowest noise level (Around 38dBA)but do have a slight whine noise quality." Have you noticed any whining from the GTs? This would be a total joy-kill.

I'd say at certain rpms they do, or at least seemingly sometimes (and I don't have that many fans but I've had a GT), but what doesn't? Depends what kind of whining you're talking about.

Play the videos in the link and see for yourself. NF-F12 is also there for reference.
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post #53 of 68 (permalink) Old 02-04-2014, 01:08 AM
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Originally Posted by iamkraine View Post

The site you linked mentioned that "The two GT fans have the lowest noise level (Around 38dBA)but do have a slight whine noise quality." Have you noticed any whining from the GTs? This would be a total joy-kill.

Check out his video, when the second sensor is between 400 and 500 FPM. Can you hear the whine he's talking about?

Edit - sorry didn't see Mikeaj's response.


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post #54 of 68 (permalink) Old 05-30-2014, 10:33 AM
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Replaced Fan with Noctua A9x14 thats 92mm. Had to move power connector slightly in order for it to fit. Was reasonably easy to do.

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post #55 of 68 (permalink) Old 05-30-2014, 11:05 AM
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Interesting! smile.gif

Although, max airflow and static pressure ratings are bit lower on the NF-A9 than the Blacknoise PC-P, which doesn't tell the whole story but there's no PQ curve on the datasheet. On the other hand, it's got a good wide blade with a low attack angle, so it should be okay for active pressure.


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post #56 of 68 (permalink) Old 07-03-2014, 09:44 PM
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Nice job on getting a 92mm in there! How is the noise and airflow compared with the original fan (Haven't seen too many comparisons with the V2.0 fan)?
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post #57 of 68 (permalink) Old 08-21-2014, 02:14 AM
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Nice job on getting a 92mm in there! How is the noise and airflow compared with the original fan (Haven't seen too many comparisons with the V2.0 fan)?

I second that :-)

Printermeow, was it a hard mod to do or?

Vould be greath to have afeedback, as this fan is aviavble here in DK and the nosieblocker is not!
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post #58 of 68 (permalink) Old 10-05-2014, 10:33 AM
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Sorry for the necro...

Has anyone considered or tried modding the PSU to use a 80x80x25mm fan instead? That case im considering has the extra 10mm to spare; it seems like a viable mod. Would a Noctua NF-R8 offer enough cooling to keep a sfx PSU from overheating? It would certainly be a lot quieter than other solutions..
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post #59 of 68 (permalink) Old 10-05-2014, 12:14 PM
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Sorry for the necro...

Has anyone considered or tried modding the PSU to use a 80x80x25mm fan instead? That case im considering has the extra 10mm to spare; it seems like a viable mod. Would a Noctua NF-R8 offer enough cooling to keep a sfx PSU from overheating? It would certainly be a lot quieter than other solutions..

Yep. Ranma13 did it two years ago. Originally he had it on the outside (see pic), but since then he cut the enclosure to fit it further inside.



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post #60 of 68 (permalink) Old 10-05-2014, 01:21 PM
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Yep. Ranma13 did it two years ago. Originally he had it on the outside (see pic), but since then he cut the enclosure to fit it further inside.


Ha, you're answering my questions all over the place. This is perfect, thanks again.
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