Passive CPU cooling - AVS Forum
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post #1 of 12 Old 03-27-2013, 01:50 PM - Thread Starter
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I currently have an Intel G840 with a Gelid SLIM SILENCE I-PLUS http://www.gelidsolutions.com/products/index.php?lid=2&cid=12&id=61 although reasonably quiet I would prefer a silent/passive cooling solution. I have found this http://www.dynatron-corp.com/en/product_detail_1.aspx?cv=&id=225&in=0 and wondered if it would be suitable or if anyone has any other suggestions ? The case I'm using is the origen ae M10 so the cooler needs a to be low profile. Any help would be great.
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post #2 of 12 Old 03-28-2013, 12:59 AM
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What's the max height of the cooler inside the case? IIRC, it's 45mm? I have been using Prolimatech Samuel 17 (45mm tall) to cool down Core i3-2105 (2 core / 4 thread, 3.1GHz) passively inside a small mini-ITX case (with a 80mm 1500rpm exhaust fan). CPU core temperature is

- Video playback: 70°C
- CPU load: 90°C

That's not bad, considering the max operating temperature of SNB processor is 98°C (if the temperature reaches 98°C, CPU throttles down automatically).
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post #3 of 12 Old 03-28-2013, 04:02 AM - Thread Starter
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The cooler I use is 27mm and one of the main reasons I.bought it was its small size so a passive cooler will have to be roughly the same and probably the main problem as most I have seen stand quiet tall. I can't see 45mm working as there is a blu ray drive not far above the cooler
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post #4 of 12 Old 03-29-2013, 07:06 AM
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What I have found is small fans make the most noise... I am using a 120mm fan on an adapter (80mm or 60mm); the big fan spins at low RPM and makes very little noise. Cheep..

http://www.amazon.com/Nexus-80mm-92mm-120mm-Converter/dp/B002C7IQ1O/ref=sr_1_38?ie=UTF8&qid=1364565654&sr=8-38&keywords=cpu+fan+adapter
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post #5 of 12 Old 03-29-2013, 08:54 AM
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Quote:
Originally Posted by josh_parker123 View Post

I currently have an Intel G840 with a Gelid SLIM SILENCE I-PLUS http://www.gelidsolutions.com/products/index.php?lid=2&cid=12&id=61 although reasonably quiet I would prefer a silent/passive cooling solution. I have found this http://www.dynatron-corp.com/en/product_detail_1.aspx?cv=&id=225&in=0 and wondered if it would be suitable or if anyone has any other suggestions ? The case I'm using is the origen ae M10 so the cooler needs a to be low profile. Any help would be great.

I also have an M10, and with a correct PWM setup I believe this is the best you will do. I just installed this yesterday:



http://www.amazon.com/Noctua-Low-Profile-Cooler-Retail-Cooling/dp/B009VY1PMI

The fan included is very quiet at low speeds, and the heatsink is much nicer than the crap stock cooler or the other little Silverstone low profile cooler I tried.

I set my PWM settings up in Speedfan to only turn the fan above a whisper if it hits 65 C or greater. This will be much better than a passive cooler: you have no course of action with a passive cooler if it can't keep the temps in check. I'm running a low profile 6570 in my M10 as well so it can get hot in there quickly. I did remove the fan from the 6570 heatsink and run it passively. To help heat escape, I installed a 92mm Noiseblocker Blacksilent Pro on the back/top vents as an exhaust. It's PWM controlled as well, the whole setup is VERY quiet and will only ratchet up the fans/noise if heat gets out of hand.

Watching movies w/ MadVR, my i3-2100 is loading at 50C and 6570 at 55C and it's basically inaudible from more than a foot away. My Plasma buzz is louder biggrin.gif
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post #6 of 12 Old 03-30-2013, 03:54 PM - Thread Starter
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Looks good I'm curious what's pwm ?
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post #7 of 12 Old 03-30-2013, 04:02 PM
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post #8 of 12 Old 04-06-2013, 03:47 PM - Thread Starter
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I just wondered if anyone else had any suggestions ? As I'm going to be looking at buying a new cooler in the next couple of days
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post #9 of 12 Old 04-06-2013, 10:23 PM
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If quiet is a concern, there's also liquid cooling. It's come a long ways in the past few years and isn't quit as worrisome as it used to be. But it also takes up a decent amount of precious space.

EMCDADE linked a heatsink with a Noctua fan. Noctua's are the only tan fans I know of. They also have a very good reputation for being very reliable, and very quiet. I can't offer much opinion on passive cooling since I've never gone that route. But I wanted to chime in on the Noctua fan and recommend their products as well.

Personally, in my 20 years of building computers, I've never once used an external / add-on fan controller. If a quiet, high quality fan is used in the first place, it shouldn't be needed. The lower fan speeds from low computer usage will cut down on dust collection though. This is my personal opinion of course and everyone is different when it comes to this.
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post #10 of 12 Old 04-07-2013, 01:17 AM - Thread Starter
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Thanks for that, I doubt very much I'll have too for any kind of liquid cooling and I don't fancy the external controller so the noctua may be the way to go or just buy a replacement gelid which was very good when I first bought it
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post #11 of 12 Old 05-18-2013, 02:25 PM - Thread Starter
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post #12 of 12 Old 05-21-2013, 05:26 AM
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You could possibly cool a G840 (65w TDP) passively with heatpipes. I've used these Flat Cool Pipes with some aluminum heat sinks to cool a i3-2100T (35w TDP). That Origen case probably has enough mass and surface area to act as your heatsink. Just run a couple cool pipes from the cpu to the case top and sides. The Flat Cool Pipes are actually ribbons of tiny heatpipes and are flexible enough to custom fit, unlike the rigid larger heatpipes.
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