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post #2321 of 3060
Quote:
Originally Posted by LostParticle View Post

Hi,

I'd like your opinion on the following, please.

I own a Noctua NH-U14S (2 x NF-A15 fan setup) for a few years now and I use it when I run an open air rig with my MAXIMUS VII HERO -- system fully shown in my sig_rig. I have heard, actually it was a video from YouTube, that the NH-U14S - 2 fan setup is almost equally efficient with the NH-D15S one fan setup. Is this true?

This period I am seriously considering purchasing the NH-D15S. I will use it with two NF-A15 in an open air rig.

Do you think that it is a good idea?

Thank you.


Fine setup. What you can do to upgrade your machine is to remove the rear grill. That way the pull fan on your NH-U14S can exhaust your case. See item 2 in my sig for an example.

 

You can cut out the grill then line the edges with the trimmed plastic spine from a cheap report cover you buy at Staples.
 

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post #2322 of 3060
@LostParticle
The NH-U14S is maybe 2c different than NH-D15 or NH-D15S. I would guess little to no noticeable differences in cooling ability. Making sure the cooler intake is getting are within a couple degrees of room temp is way more important than which of the top tier coolers we use. It is pretty normal to see 10c higher cooler intake air temps and not at all rare to see 20c when stress testing, especially if case is basically stock fan layout or cooler has hi-performance fans. You might find 'Ways to Better Cooling" link in my sig of interest. 1st post is index, click on topics to see them.

What ehume said. thumb.gif
Grills easily create 30-60% restriction of airflow, especially at low fan speeds. Perforated metal grills take up 20-50% of the area .. meaning they block 20-50% of the potential flow are of vent. wink.gif
post #2323 of 3060
Quote:
Originally Posted by doyll View Post

@LostParticle
The NH-U14S is maybe 2c different than NH-D15 or NH-D15S. I would guess little to no noticeable differences in cooling ability. Making sure the cooler intake is getting are within a couple degrees of room temp is way more important than which of the top tier coolers we use. It is pretty normal to see 10c higher cooler intake air temps and not at all rare to see 20c when stress testing, especially if case is basically stock fan layout or cooler has hi-performance fans. You might find 'Ways to Better Cooling" link in my sig of interest. 1st post is index, click on topics to see them.

What ehume said. thumb.gif
Grills easily create 30-60% restriction of airflow, especially at low fan speeds. Perforated metal grills take up 20-50% of the area .. meaning they block 20-50% of the potential flow are of vent. wink.gif


I would like to also point out that rear grills reflect air aimed at them, even when you have an exhaust fan. What doyll says about the intake temperature of a heatsink cooler is very important -- the heatsink can't cool any better then the air that feeds it. So if the exhaust of your case essentially reflects some of the air it gets, that hot air can go back around and join the air going into the heatsink. That is one of the reasons to open out the back of your case.

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post #2324 of 3060
Thank you, all, guys for your suggestions! I have reconsidered though and so I won't purchase the NH-D15S after all, because as you say I do not really need it. I would just like to point out that, as I already mention in my original post, I always use my NH-U14S in an open-air rig with my Hero VII or, very-very rarely, with my SOC Force. I do this for a month or two each year and in that period I clean my chassis thoroughly, taking my time to do it. For my main setup, as shown in my sig_rig, I always use my Corsair H110.

One last question @doyll or whoever else would like to reply:

- What is the best way to clean my NH-U14S?

I remember you @doyll once suggesting to wash it with dish washer? Like to immerse it in dishwasher liquid, warm water, and then to shower it? Can you please describe exactly how should I do it? How should I wash it and dry it, afterwards..?

Non native English speaker here, thank you

smile.gif


@Prophet4NO1, thanks! thumb.gif
Edited by LostParticle - 4/30/16 at 9:40am
    
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post #2325 of 3060
Quote:
Originally Posted by LostParticle View Post

Thank you, all, guys for your suggestions! I have reconsidered though and so I won't purchase the NH-D15S after all, because as you say I do not really need it. I would just like to point out that, as I already mention in my original post, I always use my NH-U14S in an open-air rig with my Hero VII or, very-very rarely, with my SOC Force. I do this for a month or two each year and in that period I clean my chassis thoroughly, taking my time to do it. For my main setup, as shown in my sig_rig, I always use my Corsair H110.

One last question @doyll or whoever else would like to reply:

- What is the best way to clean my NH-U14S?

I remember you @doyll once suggesting to wash it with dish washer? Like to immerse it in dishwasher liquid, warm water, and then to shower it? Can you please describe exactly how should I do it? How should I wash it and dry it, afterwards..?

Non native English speaker here, thank you

smile.gif


@Prophet4NO1, thanks! thumb.gif

Ive cleaned mine once, pretty sure take it off, let water run thru the fins, shake dry vigorously then let air dry for a while. You dont want a single drop dipping onto the mobo or ram slot or on the cpu.
    
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post #2326 of 3060
Quote:
Originally Posted by LostParticle View Post

Thank you, all, guys for your suggestions! I have reconsidered though and so I won't purchase the NH-D15S after all, because as you say I do not really need it. I would just like to point out that, as I already mention in my original post, I always use my NH-U14S in an open-air rig with my Hero VII or, very-very rarely, with my SOC Force. I do this for a month or two each year and in that period I clean my chassis thoroughly, taking my time to do it. For my main setup, as shown in my sig_rig, I always use my Corsair H110.

One last question @doyll or whoever else would like to reply:

- What is the best way to clean my NH-U14S?

I remember you @doyll once suggesting to wash it with dish washer? Like to immerse it in dishwasher liquid, warm water, and then to shower it? Can you please describe exactly how should I do it? How should I wash it and dry it, afterwards..?

Non native English speaker here, thank you

smile.gif


@Prophet4NO1, thanks! thumb.gif
I usually use a sink of hot water with dishwashing machine detergent in it. Letting it soak for awhile allows all the oils and such that collect on things over time to soak off. Slosh it around every few minutes helps

When you are sure it's all cleaned out, rinse with hot water, shake out as much as you can and set in a warm sunny place to dry. If your water is hard and you don't want any water-spots on the finish, do a final rinse with distilled water.

By hot water I mean as hot as you can keep your hand in it, not boiling hot. tongue.gif
I use dishwashing detergent because it has much stronger cleaning powers than normal hand washing detergent. wink.gif

A fan or hair drying can be used to speed up the drying process.
post #2327 of 3060
Thank you!! I will try it after 2 days!

I have tried once (or twice) to clean it by just "showering it". This is the result:
Warning: Spoiler! (Click to show)




Sorry for the "out of focus" effect..

Does anyone know, can anyone tell, what this is?

Thank you! +REP to all of you!
Edited by LostParticle - 4/30/16 at 11:35am
    
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post #2328 of 3060
Quote:
Originally Posted by LostParticle View Post

Thank you!! I will try it after 2 days!

I have tried once (or twice) to clean it by just "showering it". This is the result:
Warning: Spoiler! (Click to show)




Sorry for the "out of focus" effect..

Does anyone know, can anyone tell, what this is?

Thank you! +REP to all of you!

Thats some very hard dry water. Its why i like to shake mine off of as much water as possible. If i still had my air compressor id be using that (at low psi of course) to blow it dry. Water that sits like that ugh.
    
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post #2329 of 3060
Quote:
Originally Posted by bluej511 View Post

Thats some very hard dry water. Its why i like to shake mine off of as much water as possible. If i still had my air compressor id be using that (at low psi of course) to blow it dry. Water that sits like that ugh.

I see.

Well, I own this NH-U14S for quite a few years now and only once (or twice) I've used water to clean it, as I recall. I remember shaking it off a bit but, as it appears, not as much as it would be required. I also admit and plead guilty to the fact that even though I own a blower as well as a good vacuum cleaner with good blowing capability, I never used them!... Perhaps it also worths saying that I have used it after cleaning it, so in the state that it appears in the pictures, without any problems or degradation in its performance.

What surprises me a bit in this case is that I used the same method to clean the radiator of my Corsair H110, and for the entire time I had it I've not observed anything like this on the radiator. A couple of months ago this AIO has been replaced by the magnificent Corsair Service for "no reason" really, but I will keep in mind to dry thoroughly these devices from now on.

Thank you smile.gif
    
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Samsung 850 EVO 250 GB SanDisk Extreme Pro 240GB Samsung 840 PRO 128GB Plextor PX-128M5S 128GB 
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WD 1002FAEX 1TB Caviar BLACK (in enclosure) Noctua NH-D15S Corsair H110 2 x Noctua NF-A14 industrialPPC-2000/3000 PWM ... 
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Case Fan: 1 x Noctua NF-A14 PWM (rear, exhaust) Case Fan: Noctua NF-S12A PWM (front, intake) Case Fans: 2 x Noctua NF-S12A FLX (front, intake) Windows 10 Pro 64 bit 
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post #2330 of 3060
Quote:
Originally Posted by LostParticle View Post

I see.

Well, I own this NH-U14S for quite a few years now and only once (or twice) I've used water to clean it, as I recall. I remember shaking it off a bit but, as it appears, not as much as it would be required. I also admit and plead guilty to the fact that even though I own a blower as well as a good vacuum cleaner with good blowing capability, I never used them!... Perhaps it also worths saying that I have used it after cleaning it, so in the state that it appears in the pictures, without any problems or degradation in its performance.

What surprises me a bit in this case is that I used the same method to clean the radiator of my Corsair H110, and for the entire time I had it I've not observed anything like this on the radiator. A couple of months ago this AIO has been replaced by the magnificent Corsair Service for "no reason" really, but I will keep in mind to dry thoroughly these devices from now on.

Thank you smile.gif

My guess is the coating on the rad is quite a bit different then Noctuas heatsinks. My Alphacool rads are barely painted (painted and coated copper is WORSE for heat dissipation) so even on the case when i let it dry the water spots would bead right off.

My educated guess is, because the dust leaves a fine coating onto the heasink, the water just sits on top of it and dries very dirty.
    
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