Cooler Master Hyper 212: Looking for a Winner
by Wesley Fink on October 31, 2007 2:00 AM EST- Posted in
- Cases/Cooling/PSUs
Cooling at Stock Speed
Some users will never overclock their CPU, but they still want to run the coolest CPU temperatures possible to enhance stability and extend CPU life. All temperature benchmarks were compiled with CoreTemp, a public domain utility that is quite stable with reproducible results on the Intel platform. This required retesting a cross-section of the best coolers evaluated so far at AnandTech. To better document performance in the large speed gap between 2.93 GHz and 3.73 GHz the intermediate value of 3.33 GHz was added to all test results during the retest of the coolers.
The very good Intel stock air cooler keeps the X6800 at 31C at idle, compared to the top Thermalright Ultra-120 eXtreme at 24C, Corsair water at 24C, and Swiftech water at 27C. The Cooler Master Hyper 212 turns in an excellent idle performance at 25C, which is among the best results with CoreTemp. Clearly the 120mm fan is contributing to performance more like results measured with the top coolers rather than what might be expected from a $40 cooler. In comparing results please keep in mind the test results from the new cooling bed using CoreTemp are not directly comparable to earlier cooling results.
It is more difficult to effectively simulate a computer being stressed by all of the conditions it might be exposed to in different operating environments. For most home users CPU power is most taxed with contemporary gaming. Therefore our stress test simulates running a demanding contemporary game. The Far Cry River demo is looped for 30 minutes and the CPU temperature is captured with CoreTemp's "logging" option. The highest temperature during the load test is then reported. Momentary spikes are ignored, as we report a sustained high-level temp that you would expect to find in this recording configuration. This test configuration roughly equates to an 80% CPU load test using Intel TAT, another respected program for thermal measurements.
Cooling efficiency of the Cooler Master Hyper 212 was then compared under load conditions at stock speed to the retail HSF and other recently retested CPU coolers.
The Hyper 212 also turned in an excellent performance under load at stock speeds. CoreTemp results are 36C, which matches the best air cooler tested so far at AnandTech, the Thermalright Ultra-120 eXtreme. This result was much better than other tested mid-priced coolers. It is also a significant improvement over the stock Intel fan which reaches 50C under load at stock speed in our cooling test bed.
If you do not plan to overclock, the Cooler Master Hyper 212 is an excellent choice. At around $40 it is less expensive than the usual $50 to $70 for a top air cooler, but the stock performance at idle and load matches the best units we have tested.
Some users will never overclock their CPU, but they still want to run the coolest CPU temperatures possible to enhance stability and extend CPU life. All temperature benchmarks were compiled with CoreTemp, a public domain utility that is quite stable with reproducible results on the Intel platform. This required retesting a cross-section of the best coolers evaluated so far at AnandTech. To better document performance in the large speed gap between 2.93 GHz and 3.73 GHz the intermediate value of 3.33 GHz was added to all test results during the retest of the coolers.
The very good Intel stock air cooler keeps the X6800 at 31C at idle, compared to the top Thermalright Ultra-120 eXtreme at 24C, Corsair water at 24C, and Swiftech water at 27C. The Cooler Master Hyper 212 turns in an excellent idle performance at 25C, which is among the best results with CoreTemp. Clearly the 120mm fan is contributing to performance more like results measured with the top coolers rather than what might be expected from a $40 cooler. In comparing results please keep in mind the test results from the new cooling bed using CoreTemp are not directly comparable to earlier cooling results.
It is more difficult to effectively simulate a computer being stressed by all of the conditions it might be exposed to in different operating environments. For most home users CPU power is most taxed with contemporary gaming. Therefore our stress test simulates running a demanding contemporary game. The Far Cry River demo is looped for 30 minutes and the CPU temperature is captured with CoreTemp's "logging" option. The highest temperature during the load test is then reported. Momentary spikes are ignored, as we report a sustained high-level temp that you would expect to find in this recording configuration. This test configuration roughly equates to an 80% CPU load test using Intel TAT, another respected program for thermal measurements.
Cooling efficiency of the Cooler Master Hyper 212 was then compared under load conditions at stock speed to the retail HSF and other recently retested CPU coolers.
The Hyper 212 also turned in an excellent performance under load at stock speeds. CoreTemp results are 36C, which matches the best air cooler tested so far at AnandTech, the Thermalright Ultra-120 eXtreme. This result was much better than other tested mid-priced coolers. It is also a significant improvement over the stock Intel fan which reaches 50C under load at stock speed in our cooling test bed.
If you do not plan to overclock, the Cooler Master Hyper 212 is an excellent choice. At around $40 it is less expensive than the usual $50 to $70 for a top air cooler, but the stock performance at idle and load matches the best units we have tested.
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pc007 - Wednesday, October 31, 2007 - link
True, but assuming the fan is ducted correctly, i.e the heat sink has some 'walls' forcing the air to be sucked in from the opposite side? Cooling the edges of a heatsink well should still produce the desired result, similar to the way a heat pipe configuration works.I am aware that it is much more efficient to push a fluid/gas than 'pull' it for any reasonable distance, But on something as small as a heatsink would this still be the case?... and besides the movement of the cooling medium (air) is not the goal, rather the cooling effect on the heat sink.
Could anyone point me at some research with regard to PC cooling that would explain this?
Chuckles - Friday, November 2, 2007 - link
If the fan is ducted well, you will get a similar heat transfer. However, ducting adds material and thus cost. A buck of material for ducting may not seem like much, but the multiplier to get to retail price is on the order of 3-5. So for 2 similar performing heatsinks, one an open push, the other a ducted pull, the ducted pull configuration will cost about $4 more, for no gain. On a $40 heatsink...As for your second question, a 3" long heatsink is still "macroscale". The fluid properties aren't changing drastically, so the scaling relationships and equations would still be valid.
Also, "movement of the cooling medium" is a crucial aspect of a heatsink. Coeffiecients of heat transfer (h) are strongly dependent on the Reynolds number of the fluid flow. In a given fluid, the easiest way to up the Reynolds number is to raise the velocity term.
assafb - Wednesday, October 31, 2007 - link
Thanks!EODetroit - Wednesday, October 31, 2007 - link
See title.Also you said you would review the new Razor mouse. Haven't seen that yet either.
Wesley Fink - Wednesday, October 31, 2007 - link
We are working on several NDAs right now, but we do plan a dual-radiator water cooling review in the near future.Margalus - Wednesday, October 31, 2007 - link
One thing I always wonder about these heatsink tests. How are they tested? On a test platform with the motherboard laying flat? Or, like most users have it? In an upright motherboard with the heatsink parallel to the ground?With the advent of all these heatpipes that makes a big difference. If they are being tested on a testbed laying flat on a table the cooling results may be markedly better a real life setup in a tower case with a vertical motherboard. With the heatpipes lying sideways in a tower setup they would not seem to work like they were designed to since the fluid that is supposed to cool off and flow down to the top of the heatsink would lay trapped in the tubes that are laying on their sides..
strikeback03 - Wednesday, October 31, 2007 - link
from page 3:IIRC the heatpipes supposedly contain a mesh inside designed to help the fluid return to the base through capillary action.
CrystalBay - Wednesday, October 31, 2007 - link
They stil rule in casesThankx for the review Wes,
Eight years ago I paid 300 for the first ACTS aluminum removable MB Tray.IT came with 4x80 CM Fans . It was good but too loud for my P3 700 @ 966...
IT is for sale ...inquire within...
choppergirl - Sunday, April 4, 2010 - link
I respectfully TOTALLY disagree. :-)Compare these two examples.
Start with two enclosed metal buildings consisting of a single room.
In both, you put a a space heater operating on HIGH to represent the heat coming off the CPU. That's all a CPU is really, generating waste heat the equivalent of a light bulb, a space heater in effect.
You are in one building, and you put a fan blowing directly blowing on the space heater. No air is being sucked in from the outside, it is simply a fan blowing straight on the heater. There are various little holes around the building, but no appreciable net amount of air is traveling into or out of them.
I am in the second building. The same fan is turned around backwards, sucking the heat into the fan at the base of the heater, instead of blowing at it, and through a venturi duct this hot air is being shot out and shunted to the outside of the building. Other small holes around the building are allowing air pressure to come in because of the negative pressure caused by the fan sucking and venting air to the outside of the building at its heat source.
Further, if I were to break down one of the walls of my building (take off the side of the PC case and leave it off) I would stay even more cool, darn near close to the temperature outside the building even.
In the first building, the space heater will be cooler, because the violent air at the exit of the fan is more turbulent that air being sucked into the fan. But very quickly over time the heat in the building is going to rise and rise and rise, because all your fan is doing is blowing it right off the space heater and churning it up. The air being sucked into the fan is getting hotter and hotter and will lose its effect to cool the space heater down. You will end up dying of heat exhaustion, because the heat will continue to rise and stay at a high equiliberium level, only limited by the metal buildings ability to shed heat.
In the second building, the air around me won't be violently turbulent, but most of the heat off the space heater is being sucked into the fan and shunted out the building. I can sit there all day and watch the space heater and stay nice and cool.
If you don't believe me, set up two PCs and try it. One has enclosed case blowing the fan on CPU, stirring up the heat. The other has fan reversed, with venturi on it sucking like a vacuum the heat at the source of the heater, and directing it out of the case. Leave off the side panel.
Put two thermometers in both.
After a few hours running on a hot summer day, open up both cases and look at the thermometers, and feel with your hand. The enclosed case with the fan blowing on the CPU is going to be hot as hell, the open case will be near room temperature.
And when you're using nothing but air cooling, being as close to air temperature as possible is as good as you are going to get. You can't go below that just by blowing a fan at soemthing.
You see super expensive cases with tons of fans blowing out, etc. And a fan inside blowing on the CPU pushing the heat around. You're using lots of electricity, making more noise, etc. Much better to do away with them all, and just leave the side panel off, period.
I repeat, I repeat, the only thing the side panel is there for is to keep RATS (and cats and children and idiots) out of the PC, that is it, period. It contributes nothing to proper air suction or flow for fans designed to suck air out. RATS love to chew on IDE ribbon cables, it keeps their teeth from growing to long, they have to do it like hamsters, cockateils, and other critters.
I see a lot of PCs built with this idiot idea, esp. the minitower cases. One fan inside blowing on CPU, everything locked up as tight as a ship for air flow, And only the power supply fan to suck any air out. And the hot air its sucking into the PC power supply is from inside the case.
If these manufacturers would reverse the cpu fanon the CPU heatsink, and put a duct straight out of a hole in the middle of the side panel, you'd have two fans working to suck heat out right at the source like vacuum cleaners. Air will come in via ll the little openings all around the case.
CHOPPERGIRL
http://choppergirl.air-war.org
choppergirl - Sunday, April 4, 2010 - link
In short, take the side panel off your case, and leave it off, if you have no kid, rat, or idiot problems.Reverse the fan on your CPU heatsink (assuming its a traditional one).
Make a duct out of paper and tape to put around the exit of the fan like a tube, so that the CPU fan is sucking air in at the CPU heatsink like a vacuum cleaner, and shooting it outward past the boundaries of the case. If you don't fully understand what I'm talking about for making a venturi duct outward (even though its simple), just skip this step. Your cpu fan will still be shooting the heat outwards towards the missing side panel and out of your PC case.