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post #21 of 67
That NH-U14s is a great cooler there, not far off the H100 if the H100 is not set to aeroplane mode tongue.gif

Heres a nice pic of Jeremy from the 90's, theres no hiding when you've been on TV that long!


thumb.gif
post #22 of 67
Thread Starter 
Quote:
Originally Posted by Slink3Slyde View Post

That NH-U14s is a great cooler there, not far off the H100 if the H100 is not set to aeroplane mode tongue.gif

Heres a nice pic of Jeremy from the 90's, theres no hiding when you've been on TV that long!


thumb.gif

Yeah that Noctua is a great cooler for sure! I was just hoping this H100i would be better with some OCs, which it has been pretty good so far since I had to fix this Link software.

Hahahaha that is a fantastic picture you have there! He is hilarious, I love his stupid jokes, definitley my favorite show!
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post #23 of 67
With H100 in top as exhaust I wouldn't use the rear exhaust.fan.
  • Take out unused PCI-E slot covers,
  • Install 3 good PWM 140mm cooler/radiator fan as intake front and bottom
  • Control them with PWM signal from CPU, maybe use GPU PWM signal for bottom fan;
  • Raise case for 35-40mm bottom clearance for airflow to bottom fans. Reason is:
    • Area of two 140mm fans (PSU and intake) = 284 sq cm of blade area.
    • Area of 2x 140mm fans side by side and 4cm away from another surface = 287.4 sq cm.
    • Give bottom fans as much area to draw air as the blade area is.
This way case fans speed are dependent on cooler fans speeds. When cooler fans idle so will case fans.. and when cooler fans speed up so will case fans. thumb.gif

Honestly your NH-U14S is just as good as H100, probably better if you used 2500rpm fan on it. biggrin.gif
With stock fans the difference between H100 and NH-U14S cooling 345w of heat is 24.4c and 27c, but H100 is 51.2dBA loud compared to NH-U14S,s quieter 35.8dBA. H100 is about 3 times as loud.
Edited by doyll - 4/21/14 at 11:36am
post #24 of 67
Thread Starter 
Quote:
Originally Posted by doyll View Post

With H100 in top as exhaust I wouldn't use the rear exhaust.fan.
  • Take out unused PCI-E slot covers,
  • Install 3 good PWM 140mm cooler/radiator fan as intake front and bottom
  • Control them with PWM signal from CPU, maybe use GPU PWM signal for bottom fan;
  • Raise case for 35-40mm bottom clearance for airflow to bottom fans. Reason is:
    • Area of two 140mm fans (PSU and intake) = 284 sq cm of blade area.
    • Area of 2x 140mm fans side by side and 4cm away from another surface = 287.4 sq cm.
    • Give bottom fans as much area to draw air as the blade area is.
This way case fans speed are dependent on cooler fans speeds. When cooler fans idle so will case fans.. and when cooler fans speed up so will case fans. thumb.gif

Honestly your NH-U14S is just as good as H100, probably better if you used 2500rpm fan on it. biggrin.gif
With stock fans the difference between H100 and NH-U14S cooling 345w of heat is 24.4c and 27c, but H100 is 51.2dBA loud compared to NH-U14S,s quieter 35.8dBA. H100 is about 3 times as loud.

The H100i is set up as a pull intake at the moment. I did like the Noctua cooler, just had a buddy that actually had a H80i and was telling me how much better the water cooler would be over the air cooled system, so basiclly my fault not doing enough research before buying the Corsair
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post #25 of 67
CLC coolers are not better than top air, and with fans making the same amount of noise top air beats CLC. They are cheap. Their total cost is less than a single pump and radiator used in custom loops. biggrin.gif
Edited by doyll - 4/21/14 at 11:59am
post #26 of 67
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Quote:
Originally Posted by doyll View Post

CLC coolers are not better than top air, and with fans making the same amount of noise top air beats CLC. They are cheap. Their total cost is less than a single pump and radiator used in custom loops. biggrin.gif

How about replacing the fans on the H100i with Noctua fans like the ones I would like to use for my case fans? After doing a 1.5 hr stress test on x264 last night my CPU temps did seem to be a little cooler than the NH-U14S, Im just hoping the more I OC is when I would really benefit from the H100i
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post #27 of 67
Quote:
Originally Posted by Slink3Slyde View Post

They would all act as exhausts.

All intakes act as exhausts and vice versa (or rather the openings opposite them), the air has to go to/come from somewhere. My setup is mostly a positive pressure "push", rather than a negative pressure "pull". The total CFM of the 7950 reference coolers and the CPU fan is about a quarter my intake, and when I was running that setup, as much air came out of the case between/around the cards as through them.
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post #28 of 67
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What would be a good case fan from Noctua? I have been leaning towards the NF-A14 ULN, but would be open to others, if anyone has had any experience with them.
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post #29 of 67
Quote:
Originally Posted by DrockinWV View Post

How about replacing the fans on the H100i with Noctua fans like the ones I would like to use for my case fans? After doing a 1.5 hr stress test on x264 last night my CPU temps did seem to be a little cooler than the NH-U14S, Im just hoping the more I OC is when I would really benefit from the H100i

I had an H-100 with dual Noctuas on exhaust at the top of my R4, and I replaced them with a Noctua D14 with Noctua PWM fans and sealed the top. Just as cool and much quieter!

If you have the H-100 on top set to exhaust, experiment with the rear fan in all three rotations (Intake, Exhaust, Missing.) My experience with two other cases:

On an Arc mini with an H-100 in push-pull Exhaust, I have the rear fan set to Intake to feed the cooler, and that works great.

However, on my Corsair 500R with an H-110 and 2x Noctua PWM 140mm fans set to Exhaust -- having the rear fan set to Intake pushed against the front fans (3x 120mm @5v) and created a patch of dead air that caused the case to pulse the PWM high every 15 minutes or so. Reversing the rear fan to Exhaust created a good flow across the bottom of the H-110 and smoothed out the air flow and dropped the temps.

Regarding PWM, I mostly agree. I like to set some of my fans (e.g. one intake and one exhaust) at low voltage to keep fresh air flowing at all times, then have the rest on PWM so when the CPU or mobo needs cooling the entire flock takes off at once.

Also, unless you have a noisy pump, set the H-100 pump to 12v and let it circulate at full speed all the time.

- samwisekoi
post #30 of 67
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Quote:
Originally Posted by samwisekoi View Post

I had an H-100 with dual Noctuas on exhaust at the top of my R4, and I replaced them with a Noctua D14 with Noctua PWM fans and sealed the top. Just as cool and much quieter!

If you have the H-100 on top set to exhaust, experiment with the rear fan in all three rotations (Intake, Exhaust, Missing.) My experience with two other cases:

On an Arc mini with an H-100 in push-pull Exhaust, I have the rear fan set to Intake to feed the cooler, and that works great.

However, on my Corsair 500R with an H-110 and 2x Noctua PWM 140mm fans set to Exhaust -- having the rear fan set to Intake pushed against the front fans (3x 120mm @5v) and created a patch of dead air that caused the case to pulse the PWM high every 15 minutes or so. Reversing the rear fan to Exhaust created a good flow across the bottom of the H-110 and smoothed out the air flow and dropped the temps.

Regarding PWM, I mostly agree. I like to set some of my fans (e.g. one intake and one exhaust) at low voltage to keep fresh air flowing at all times, then have the rest on PWM so when the CPU or mobo needs cooling the entire flock takes off at once.

Also, unless you have a noisy pump, set the H-100 pump to 12v and let it circulate at full speed all the time.

- samwisekoi

Thanks for the infor samwisekoi! I have read a lot about people using their H100i with exhaust but I dont under stand I guess how that works better as far as cooling for the CPU since the air would be slighly warmer using case air verses room temp air. Maybe just because it exhaust the warm case air at the top since air rises which would give an over all cooler case? Either way I would like to experiment with different set ups to see which works the best in my situation. But as far as the noise from the fans, it doesnt really bother me at all, my rig sits across the room from me and I can barely every hear it unless under heavy load. Even then I have it hooked to my home theater and surround sound so it mosly gets drowned out by what ever game I am playing at the time being. thumb.gif
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