Arctic Liquid Freezer II Tear-Down & Disassembly vs. Asetek Design
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Date: 2020-05-06
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Comments and reviews: 10
Sam
Just a few remarks this time: 7: 13 Propylene glycols (including polypropylene glycol) are odorless (so is Ethylene glycol used in cars. the smell is likely from the corrosion inhibitors, which are volatile aromatics, or a bitterant added to prevent you from drinking it. Note that since Propylene Glycol is non-toxic, they have to add biocide to it, but you don't need to do that with Ethylene glycol since it's toxic. I looked it up just now, it's pretty cool. 21: 54 checking if it's metal. Not sure why you are checking if it's metal or not with a magnet. The rotor is definitely plastic. It contains magnets so the stator can move it. That's why it's magnetic. You will notice that when he drops the magnet on the side twice it sticks at exactly the same spot, it even moves forwards a bit the second time. Your magnet test did show that the spindle is stainless steel (not very magnetic) You can clearly see the mold marks from the ejector pins on the impeller face thanks to the zoom at 22: 32. You can see the 2 marks from the gate on the back at 21: 58 (play at 0. 25x and freeze it as he flips it over. 24: 56 the electromagnet is called a stator. it's the part of a motor that stays in place. The part that spins is the rotor. Otherwise excellent content as always! Keep it up!
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Just a few remarks this time: 7: 13 Propylene glycols (including polypropylene glycol) are odorless (so is Ethylene glycol used in cars. the smell is likely from the corrosion inhibitors, which are volatile aromatics, or a bitterant added to prevent you from drinking it. Note that since Propylene Glycol is non-toxic, they have to add biocide to it, but you don't need to do that with Ethylene glycol since it's toxic. I looked it up just now, it's pretty cool. 21: 54 checking if it's metal. Not sure why you are checking if it's metal or not with a magnet. The rotor is definitely plastic. It contains magnets so the stator can move it. That's why it's magnetic. You will notice that when he drops the magnet on the side twice it sticks at exactly the same spot, it even moves forwards a bit the second time. Your magnet test did show that the spindle is stainless steel (not very magnetic) You can clearly see the mold marks from the ejector pins on the impeller face thanks to the zoom at 22: 32. You can see the 2 marks from the gate on the back at 21: 58 (play at 0. 25x and freeze it as he flips it over. 24: 56 the electromagnet is called a stator. it's the part of a motor that stays in place. The part that spins is the rotor. Otherwise excellent content as always! Keep it up!
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ajm8127
Really enjoyed this tear down. This looks like a well made product. I don't design impellers and the two look similar to me except for size. The bigger impeller almost certainly flows more for a given pressure than the smaller one. At least this is true for compressor impellers on turbochargers. When you are talking about the flow across the block at 16: 16 I think you have it backwards after having a look at the impeller and housing at 23: 25. The liquid will be forced to the outside of the impeller fins due to centrifugal force and will flow through the two passages on the outside of the housing and then across the block and through the hole in the middle of the housing.
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Really enjoyed this tear down. This looks like a well made product. I don't design impellers and the two look similar to me except for size. The bigger impeller almost certainly flows more for a given pressure than the smaller one. At least this is true for compressor impellers on turbochargers. When you are talking about the flow across the block at 16: 16 I think you have it backwards after having a look at the impeller and housing at 23: 25. The liquid will be forced to the outside of the impeller fins due to centrifugal force and will flow through the two passages on the outside of the housing and then across the block and through the hole in the middle of the housing.
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Jonathan
Pause 22: 57 The impeller design on the right looks better designed with my understanding on fluid dynamics. The left one has holes on the base of the impeller (same base holding the fins, whereas the right one, the hole/gap is around the centre pin, but raised, so as for liquid to flow unimpeded, in one direction. The left one has to flow at an angle. Centrifugal force, blade design and coupled with the spacer/gap/hole on the right fin woul appear to be a better design choice but probably quite a significant level of difficulty to design. Would lose to see a super closeup of the centre pin and how it is held in place because it has the gap around it. Thanks!
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Pause 22: 57 The impeller design on the right looks better designed with my understanding on fluid dynamics. The left one has holes on the base of the impeller (same base holding the fins, whereas the right one, the hole/gap is around the centre pin, but raised, so as for liquid to flow unimpeded, in one direction. The left one has to flow at an angle. Centrifugal force, blade design and coupled with the spacer/gap/hole on the right fin woul appear to be a better design choice but probably quite a significant level of difficulty to design. Would lose to see a super closeup of the centre pin and how it is held in place because it has the gap around it. Thanks!
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Xoron
How about doing CLC tests on your synthetic load setup with standardized fans? You mentioned it in this video: The good performance of this CLC in particular is due to a larger radiator and the fans. But how much do the fans and the rad/pump-cold-plate-design contribute each? With standardized fans you could uncouple these factors by mounting standardized fans onto the test subject and mounting the original fans onto a standardized CLC. You could even have an attempt at a definitive list of best radiator fans. I'd rather have CLC and air cooler tests with standardized fans than the cases.
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How about doing CLC tests on your synthetic load setup with standardized fans? You mentioned it in this video: The good performance of this CLC in particular is due to a larger radiator and the fans. But how much do the fans and the rad/pump-cold-plate-design contribute each? With standardized fans you could uncouple these factors by mounting standardized fans onto the test subject and mounting the original fans onto a standardized CLC. You could even have an attempt at a definitive list of best radiator fans. I'd rather have CLC and air cooler tests with standardized fans than the cases.
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Wracky
My 1700x 4Ghz, has been running for almost 3 years now, cooled by a Corsair H115i with noctua fans. Watertemp doesn't go over 40deg C. As Bitwit showed, having the rad in the front of the case can be beneficial for CPU temps if the GPU blows hot air into the case (which mine does) So, I mounted my rad at the front. I heard about how air can become a problem, but because the tubes aren't long enough, I have no choice but have the tubes connect at the top, if I want to mount it at the front. so I just went with it. It's still fine knock on wood. we'll see how long it lasts!
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My 1700x 4Ghz, has been running for almost 3 years now, cooled by a Corsair H115i with noctua fans. Watertemp doesn't go over 40deg C. As Bitwit showed, having the rad in the front of the case can be beneficial for CPU temps if the GPU blows hot air into the case (which mine does) So, I mounted my rad at the front. I heard about how air can become a problem, but because the tubes aren't long enough, I have no choice but have the tubes connect at the top, if I want to mount it at the front. so I just went with it. It's still fine knock on wood. we'll see how long it lasts!
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Matthew
I have a liquid Freezer 240 (liquid freezer 1) that i originally bought for a Ryzen 1700. It is now moved to my 3950x and it keeps my CPU in the low 60c range with high load like mining or distributed computing. They recommend a 280CLC for the 3950x but the arctic freezer 240 has a giant fat rad and it was and still is pretty bad ass. NO issues with that cooler over the years i have had it. Interestingly enough i have it mounted in the front with the tubes at the top as it just fit better that way in my case. I have any issues with pump noise due to this so far.
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I have a liquid Freezer 240 (liquid freezer 1) that i originally bought for a Ryzen 1700. It is now moved to my 3950x and it keeps my CPU in the low 60c range with high load like mining or distributed computing. They recommend a 280CLC for the 3950x but the arctic freezer 240 has a giant fat rad and it was and still is pretty bad ass. NO issues with that cooler over the years i have had it. Interestingly enough i have it mounted in the front with the tubes at the top as it just fit better that way in my case. I have any issues with pump noise due to this so far.
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Julian
Is it reasonable to assume the single fan 120 version of this would have the same pump body & general build quality? I have a weird rack mount case for a DAW workstation build with just one possible location for such an AIO - currently occupied by a 140mm fan pulling air through the front. I bodged a low profile Noctua air cooler onto the ryzen 3600 and it works fine, but blocks the nearby RAM slot, so longer term need to re think the CPU cooling. No way to fit a 240 in the case sadly, but unless I upgrade the CPU I think the 120 should be OK.
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Is it reasonable to assume the single fan 120 version of this would have the same pump body & general build quality? I have a weird rack mount case for a DAW workstation build with just one possible location for such an AIO - currently occupied by a 140mm fan pulling air through the front. I bodged a low profile Noctua air cooler onto the ryzen 3600 and it works fine, but blocks the nearby RAM slot, so longer term need to re think the CPU cooling. No way to fit a 240 in the case sadly, but unless I upgrade the CPU I think the 120 should be OK.
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cranedaddy678
Gamers Nexus, My unit did the same thing about not reporting pump rpm when the fans were hooked to their own header. I emailed customer support and they said update my bios, or try a different header. They also said do not use the pump header because most of them have too high voltage. Whatever, i'm on the newest bios, I get a rpm reading (probably the fan rpm) with the fans plugged in to the stock plug and I'm using my pump header anyways. /shrug Would love to find a fix for this if possible.
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Gamers Nexus, My unit did the same thing about not reporting pump rpm when the fans were hooked to their own header. I emailed customer support and they said update my bios, or try a different header. They also said do not use the pump header because most of them have too high voltage. Whatever, i'm on the newest bios, I get a rpm reading (probably the fan rpm) with the fans plugged in to the stock plug and I'm using my pump header anyways. /shrug Would love to find a fix for this if possible.
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ExoTech
or like this 14: 26 Do it like This or also do it like this (BTW this reminds me of Russ Hanneman's car door scene in Silicon Valley TV Series) God. there is water in the loop haha the Rad peed on you Steve, it's called revenge LMAO i am really happy for Arctic and the recent videos made about their amazing products, sadly they don't bother much with marketing and so many people end up missing their amazing price/perf products. Especially the fans and this amazing CLC
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or like this 14: 26 Do it like This or also do it like this (BTW this reminds me of Russ Hanneman's car door scene in Silicon Valley TV Series) God. there is water in the loop haha the Rad peed on you Steve, it's called revenge LMAO i am really happy for Arctic and the recent videos made about their amazing products, sadly they don't bother much with marketing and so many people end up missing their amazing price/perf products. Especially the fans and this amazing CLC
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LeXeL
i dont like aio's, i either use air or a custom loop but i have to say that after your test and this teardown i consider to use an arctic aio all the parts look more like propper watercooling components and not like toys aka asetek at least as far as i can tell from the videos and the radiator design is interesting: build in shroud for the fans (space between fans and fins, fans can seal properly and in-/outlet position i can see beneficial in many cases (and cases: D)
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i dont like aio's, i either use air or a custom loop but i have to say that after your test and this teardown i consider to use an arctic aio all the parts look more like propper watercooling components and not like toys aka asetek at least as far as i can tell from the videos and the radiator design is interesting: build in shroud for the fans (space between fans and fins, fans can seal properly and in-/outlet position i can see beneficial in many cases (and cases: D)
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