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Go Silent With Massive Fanless CPU Heatsinks
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There is always an endless selection of accessories at Computex, it's sometimes difficult to weed through all the devices.
We did however stumble onto a selection of heatsinks that were passive but still impressive. Thermalright took the spotlight in terms of silent cooling this year--we think they did this last year too. The company showed off several big--literally--passive CPU heatsinks that we found were quite impressive.
Initially we felt that passive heatsinks were definitely not the right solution for those wanting to overclocking their CPUs. This makes sense because overclocking will demand something active if cooling by air, and liquid cooling for better results. Despite this, representatives from Thermalright claim that its heatsinks are so efficient, you can still overclock your processor. While we think this claim is true, the overclocking results you can get from a passive air cooling solution will be much more limited than what an active solution can deliver.
The heatsinks themselves are massive and quite heavy. If you plan to use these solutions in a tower case, make sure the heatsinks are secured tightly. At this point, the usual retention mechanism already applies a great deal of pressure to the motherboard, and so having the heatsinks essentially hanging on their side in a tower case, makes even for a more risky scenario.
Where do we see these working out best? In HTPCs that lay horizontally--and most do. This way, you'll get a silent cooling solution that won't put strain on your motherboard.
Source : Tom's Hardware US
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"Weighing only a light 260 Lbs these heatsinks make sure your computer is icy cool!"
Not quite. Most HTPC cases are slim (at least the nice ones that look like an entertainment center component). These sinks look waaaay too tall to fit in an HTPC case.
Those are massive! They will need a system of pulleys to keep them in a tower case!
won't that just make the case hot if you don't got alot of exit fans 0_0???????????????
I'd prefer a quiet fan.
I got a gigantic cooler master hyper mounted into a Sileo 600 case for my HTPC. Other than two 800 rpm case fans, the whole system is passively cooled, including the northbridge and video card. The CPU heatsink weighs about a kg, but the mount is fine and I don't worry about anything breaking.
And ya, I can still overclock without breaking 50C full load. The only reason water cooling can achieve lower sustained temps than air is because the radiator to pump the heat outside the case has more exchanging area than the average air solution.
An 800rpm 120mm fan is waaaaay quieter than a water pump + radiator fans. With these new massive heat sinks, you can have better cooling than water without the noise.
Ooh, that round one... it's so pretty, does it glow?
The only reason water cooling can achieve lower sustained temps than air is because the radiator to pump the heat outside the case has more exchanging area than the average air solution.
And here I was thinking it had to do with the specific heat of water being 4.19 joules / g where as the specific heat of air (according to wolframalpha) is .717 joules / g. That means water can absorb almost 6 times the energy that air can. Surface area be damned!
And here I was thinking it had to do with the specific heat of water being 4.19 joules / g where as the specific heat of air (according to wolframalpha) is .717 joules / g. That means water can absorb almost 6 times the energy that air can. Surface area be damned!
After the heat travels from the hot CPU into the cold water, the heat has to leave that water. If the heat doesn't leave the water, it will continue to heat up, and stop being cold. Try running a water cooled system with the radiator blocked off. It might take a few more minutes to over heat, but I assure you that the temps will not be happy. All water does is move the heat from the CPU into the radiator. It's the radiator that does the heat removal. Water just provides the transportation.
My server and my main desktop are both using passive coolers. The case fans draw out enough air to keep the case cool and I have a few less moving parts that can fail as they age. I am quite happy with them. In both instance I selected processors that are 65W or less on the TDP (the passive coolers claimed they could handle 89W, but I stayed lower just to be safe).
Since my main desktop also has a 4870 in it the passive CPU cooler is more of a curiosity than anything else. Let me know when I can cool the 4870 passively and I will be really interested
That round one reminds me of a cooling tower at a nuclear power plant
they don't look any larger then my Xigmatek...
Wow, those look things look like sky scrapers in a futuristic city.
Since I run my computer bare on my desk, this might be a good idea
Looks like they have the Ultra 120 Extreme w/out fan on the bottom left picture. It's a heavy heat sink, but not as bad as the Zalman CNP 7700 I had once.
Easy solution: Get a TRUE 120 and slap a Yate Loon 120mm on it. Sadly most people don't know about Yate Loon fans as it is mainly used by watercoolers and only a very few places sell it (ie. Newegg doesn't have them). These are probably the best silent fans you can get.
Easy solution: Get a TRUE 120 and slap a Yate Loon 120mm on it. Sadly most people don't know about Yate Loon fans as it is mainly used by watercoolers and only a very few places sell it (ie. Newegg doesn't have them). These are probably the best silent fans you can get. And it will actually allow for quite a decent OC with very little noise. Your GPU fans are probably the loudest in the system.
Btw, thumb down my previous comment, it was incomplete.
All water does is move the heat from the CPU into the radiator. It's the radiator that does the heat removal. Water just provides the transportation.
I agree with you Zirb. Whats the heat capacity of copper? Has to be more than water, meaning those copper heat pipes carry more heat away from the CPU than a liquid cooling system. In the end, any cooling system comes down to the efficiency of the radiator, which is why the water-cooler in this Tom's Hardware article did so poorly.
Doesn't matter how big these passive heat sinks are if there's nothing to remove the heat from the sinks and out of the case.
Interesting, but they look expensive.
That's a lot of metal, thus being pricey.
They seem heavy, adding to shipping costs.
I'd rather have a water cooling loop traveling all the way to my fridge or freezer. Keep the pumps in a noise insulated area to cancel the noise.
Passive is nice, but a 200mm fan is more to my liking. ^_^
Is that a joke or something? Who would spend 200$ on a HS if you can just change a fan for 10$ ?
Seriously, you need to be insane to buy something like this.
Is that a joke or something? Who would spend 200$ on a HS if you can just change a fan for 10$ ?
Seriously, you need to be insane to buy something like this.
No, you dont need to be insane to buy something like this. If you carry this heat sink in 3-4 computers and end up keeping it 10 years, it's cheap to buy yourself less annoying noise for soooooo many hours.
But, I totally agree most people should look at something in the 40-80$ range with a good low rpm fan. Like me, I've actually been carrying my Thermalright XP120 and my zalman VF700-cu for a while!
OH I LOVE FANLESS ! MAKE AND ARTICLE AND TEST ON IT !
http://www.tomshardware.com/galler [...] -jpg-.html
looks alot like a design I posted here: http://www.raidmax.com/BBS/default.aspx?g=posts&t=31