5 Watercooling Myths You Shouldn't Believe 

Do mythbusting on overclocking

1:44 I like how you're sitting on the stairs. It's like you're talking directly at me. So casual. So cool. See everybody? He is in his 30s, but he understands what the kids can relate to. I like this. I like you.

Jay could you cover myths about overclocking gpu and cpu next?

5 myths about myths plz

damn and here I was thinking that the algae growing in my system was helping to promote cooling

One myth I've heard that I've actually been recommended to do is flashing a motherboards BIOS twice with the same version. For years I've heard it was a bad thing & easy way to brick it but on the MSI Forums it seems a common practice to fix bugs.

I haven’t subscribed yet but with videos like this where you’re testing and showing REAL WORLD results. I can’t help but want to be a part of your space. Thank you, Jay.

once you see jay's face in 4k you can never go back

Loved the change of scenery between myths.

"...bigger Reservoirs don´t increase your cooling capacity..." Me looking on my pool-sized radiatorless Reservoir: "Dont cry my little Water, Uncle Jay just make a bad Joke."

Love these type of videos. Keep it up. Proud of you

a larger reservoir doesn't affect max temp, but it does slow changes in temp, reducing swings in temp that cause mechanical stress.

Looking forward to your loop order video. Love seeing your builds. They are just wonderful. Keep up the great work.

id like to hear about parallel vs series loops

Jayz2cents spittin that watercoolin game in back alleys and shit.

I liked the moving around of scenes, especially the stairs. Feels candid and honest. Not that you don't usually feel honest....but yeah.

The reason WC systems may heat a room up more is you can push more power through the components without hitting a thermal throttle. As far as heating your room, our PC's are essentially low/medium powered space heaters (depending on build). The wattage they draw from the wall is released into the room as heat. If an air and water cooled system draw the same power from the wall, they will heat the room the same.

I like that Switching of spots. Especially that spot on the stairs goes very well with that kind of Vidoe.

next, can you go over Overclocking your GPU. the other one is kinda outof date

This video has helped me out so many years later. Thank you

0:40 " *hey Charles, can you press this button randomly for me?* " " *certainly, sir* "

Man I can't believe how much better jays videos look compared to the other content creators I watch. Thank you jay !

Can you do a cost/performance analysis for water cooling? Its been forever since I even looked at parts so I just don't remember how much they cost. Could you tally up your system and show just how much money is spent on the overclock, then compare it with an air cooler? Is the potentially hundreds of dollars worth it for the extra few megahertz on an overclock?

Not for nothing but these videos really do help me. I've always wanted to dive into custom and I'll be honest I've been afraid and have always settled for aio coolers but for my next build I'm thinking of buying the aluminum ek that you reviewed and giving it a shot. Thanks Jay.

I'd like to see a video where we can learn more about custom loops and tube bending. It's really intimidating as a beginner for water cooling but looks amazing.

Having water cooling that keeps your rig at a stable 40C while gaming and around room temperature when not gaming is going to keep the room cooler than if you're running a cooler that keeps your system at 60C while gaming and 40 while idle. I've actually experienced this, as my gaming room got a few degrees colder after longer gaming sessions with the water cooler. Eventually both systems would heat the room up to the same temperature, but it would take much longer with the watercooling and people don't generally game for more than 8 hours at a time.

A large reservoir also looks better

I'm lovin these myth vids...You bare the burden of having great knowledge coupled with the ability to impart it simply to the masses; the masses are pleased. Can't wait for the bits showing the varying loop designs and the results. Thanks, Jay!

how old is jay his hair makes him looks like hes 50 but his face makes him look like hes 25 and he acts like a 10 year old

I have been reviewing many tech youtube channels and after looking at over 30 channels this guy is the best. My next favorite is the Science Studio.

Please this "myths" a series. :)

i see non-conductive fluid being best for people who have never done watercooling before so if they messed up a fitting or didnt connect a tube good enough its not gonna ruin anything when it leaks while they are filling the loop for the first time or the first week of the loops use.

Jay please do a tutorial on how to change out the fluid in your loop

Can't wait for the loop order video. Have some friends who still don't believe it doesn't matter. With that video I can finally shut them up... Great work Jay.

For the water to heat up say your cpu after having gone through your gpu block the water would have to be at a higher temperature then the cpu. So it's technically possible but if thats a problem that you have then I think you have other things to worry about.

I am a Mechanic, and I can tell you that the size of the reservoir is ultimately crucial to the cooling capacity to any liquid cooling system. Whether you are dealing with a CPU/ GPU , or a nuclear reactor, the amount of coolant is the key. Water tends to hold heat very well (Even better than Iron). Also, speeding up the pump might not be the best idea, as the liquid in the radiator needs time to cool down. Air is a very poor conductor of heat. That being said, listen to Jay, (and those like him that are trustworthy), cause they have already done the research, and made most of the mistakes that you should avoid. (Be it for cost, pride, or both) I'm no different. Just remember that "Everyday's A School Day !" Thanks Jay! Matt

Surely if I stick the radiator into my freezer it would cool below ambient room temp??? 😂

Unfortunately, when it comes to large overclocks, loop order does matter. I had a build where a 7700k would go unstable if the GPU was in the loop before it as that added temperature did take the CPU just a few degrees higher and lost stability, Switched them around and it was rock solid.

A video about flowrate would be interesting.

Digging the filming method with this one

¿Is it true that even very good quality thermal grease dries out in time, and you have to change it every 6 months or so?

Funny video. Now we need a myth busting video to clarify the new myths introduced in this video. My favorite was: water cooling increases your room temperature more because it is more efficient at getting the best of of your pc. Ymmd!

I am thinking of buying a proper pc case from caselabs. A Magnum TH10A or SMA8 would suffice, but i am thinking #yolo because TX10 is back for a limited time. Might aswell pay the extra few bucks. I had a watercooled PC 6-7years ago and then i used a old Thermaltake Mozart TX case which i did some light modding on. I bet any caselab case would be great for waterbuild. But i am a bit facinated by TX10. Have 1.5weeks to decide whether to buy it or not.

Thank you for the humor. Please bring back "Transitions", they were a fun touch. - Thank you for explaining water cooling to your fans and viewers. - Keep up the good work. - BTW, this is a water cooling video, however, my Noctua NH-U14S is a great CPU air cooler.

@JayzTwoCents can you test a water-cooled parallel against a series loop in regards to cpu & Gpu's temperatures, water flow rate and If it has any impact onto noise generation?

I have been using H2o and Propolene Glycol for years with zero growth (1 year between flush) goop or corrosion, I'm now trying H2o, Glycerin and silver dilution in my hard line loop. So far so good, keeps the pump quiet and seems to cool fine, Glycerin has a higher heat transfer rate/capacity than Glycol and is still antimicrobial.

*Spots 4K camera on the desk* *Sets quality to 4K* Oh, cool! :-)

This is way better than the other one. For me you're my number one source of RU-vidrs in the water cooling work. You should do more videos like this. Thank you man!

"Boils Down" you really don't want your loop to boil.

I am loving the videos to remind us of the basics and now even more so since I will be doing a new build and want to watercolling because the system will have top of the line components and I want the most i can get out of them.

OMG jay, can you do a loop with a refrigerated rad????

Really good video in comp to the common mistakes as changing the environment for each fact is just gorgeous!

For some reason I do not understand there are people who still believe that Mac Pro is better than a regular computer in the same price range in video editing. I would love to see you make a comparison between the two

I was typing a comment about doing a parallel loop as you said it, please make a video explaining the benefits/draw backs of parallel vs serial loops!

I am pretty sure watercooling isn't going to make your room temperature higher than air cooling. Or at least not for the reasons you mention. Yes, watercoolers remove heat faster and more efficiently, but they still remove the same amount of heat energy. If your PC pulls the same amount of power from the wall, the same amount is going to end up as heat in the room, regardless of cooling solution. It is just going to do this by removing the same amount of heat, but at a lower equilibrium temperature (or Delta T). That being said, better cooling usually means more overclocking, either by TurboBoost/GPU-Boost technology, or manually by the user, which increases power draw, and of course the heat being produced in the room.

thinking of doing water cooling on my next build and this helped alot, Thank you Jay!!!!

"Having water cooled systems is probably going to heat your room up even more"... WRONG Jay, Jay, Jay. Man, so, so, so close. What you're referring to (loosely) is the law of physics regarding the conservation of energy. That people still don't do their own research is why you're addressing this issue but basically, there is no additional energy being pushed into the rest of the room for it to be 'warmer'. It may very well exchange heat to the rest of the room faster, but the room will still retain/dissipate heat at the same overall rate. If your room evens out at 30C for an air cooled PC system in it, it'll do the same with a water cooled PC system in it, it'll just get to that temperature faster; much like, in fact, one of your other myths regarding loop temperature equilibrium. So good work Jay, but your specific use of words here may very well have implied something other than what you intended. Please keep up the excellent content, and please consider the idea of designing/modding your own case for something truly unique.

Just a bit of complementing with some other details on the topic: - There seems to always have been some discussion regarding tubing diameter and how that affects temps. And the thing is as long as you're using good pumps (laing or go home) the difference in temps is pretty much negligible so this choice should be dictated by aesthetics and ease of access instead (also thinner tubing is easier to route). - With regards on VGAs in series vs parallel. If you have your VGAs on their own loop, pick what you think looks best. If you have them on the same loop as your CPU, you can use that to "shift" cooling capacity between your CPU and and your VGAs in a way. Tl;DR: If you're more worried about your CPU, run your VGAs in parallel, if your GPUs are the ones you want to focus on, run them in series. This is a rule of thumb and it has to do with the fact that water flow through the different components does affect a bit your temps. If you run your GPUs in series, your whole loop has a bit more resistance, but if you run them in parallel, the GPUs divide the flow flow between them. So flow for the rest of the system is a bit better but each GPU gets a less flow. So their blocks are performing a bit worse, but your CPU gets better flow instead. Ultimately this is very much into nitpicky territory so to speak and the differences shouldn't really be too pronounced, unless you're relying on a weak pump. - Bonus: pumps in parallel vs series Pumps in parallel offer no benefit. Don' do it. Pumps in series are useful. You get better flow and redundancy. A stalled pump (true for DDCs and D5s) won't really hinder you much either

what about pump speed myth?

I love the scenery changes! Makes it way more enjoyable!

But most importantly: MILK IS NOT A GOOD COOLING LIQUID

You should be able to go lower than room temerature if you spray water on the heatsink. In theory the air passing by should evaporate the water quickly, sucking energy out of the system, that might be a fun one to test.

Do a video using mineral oil instead of water in a loop.

Love the scene change for every myth. Youre produktion quality has skyrocketed in the new studio.

Are two 240mm rads nore efficient than one 480?

7:00 Loop order does affect temperatures. By a couple degrees C at most, typically, so one could say it doesn't matter. But it does make a difference. Any block coming right after a radiator is going to have cooler water flowing through it, which means heat transfer into the water will be faster, due to the increased delta T. The one component that most stands to benefit from that is the CPU, due to the high thermal density of the interface. So putting the CPU block after all radiators might net you a couple degrees off top temperatures. GPU's are much easier to cool due to the much larger die area and much lower clock speed. And with all radiators together, the water entering them will be the hottest it is in the loop, making heat transfer out of the radiators faster. Water temperatures never reach equilibrium across the loop. There are always gradients, where cooler water flows out of radiators, and warmer water flows out of blocks.

Parallel vs serious loop? 6:56 :)

Thanks Jay! Going to do custom water loops for the first time on my next build and this info is great, looking forward to the follow up vids as well!

I think its time you used a thermal camera and benchmarked different loop orders

This is very useful actually, Jay.

Public service announcement please stop saying first

Love the different filming spots for each myth. Was almost hoping the last one would be from the toilet or something.

can I use water from cars cooling system( radiator )

ever since i built my new system using the corsair h150i aio my room sits at a very toasty 85 f at all times. I use a 9900k and the cpu temps never reach over 40c even on a high load for multiple hours on end so i can definitely vouch for cpu heat dispersal heating your exterior environment up even more while keeping your system much cooler.

Jay cmon dude.... :-/ 1) Wrong, a larger reservoir gives more thermal mass in the system. If the radiator can support the cooling function, it will give you "lower temps" because you aren't heating the total mass the same amount. Q=MC(T1-T2); MASS is a function of thermal power. Your transient response time will also be slower proportionately to the amount of mass gained. 2) At the same fan speed, larger radiators will have a faster thermal transient response; albeit not below ambient, and point of diminishing returns applies 2b) wrong, heat in, heat out. If youre cpu is putting out 150w, its 150w. doesn't matter if youre cooling it with air or water; youre still putting 150w of heat in your room. 3) Certain chemicals don't strip ions; some of the nano based fluids don't strip ions because they dont have water in it. Think of mineral oil cooled pc's. The only ionization that will occur will be from friction stripping. 4) Dye's are so all over the place; youre right about this one 5) Right on.

Jay loving the background scene changing in the video

About the water flow rate: the german magazine PC Games Hardware did a test that ended with 4 CPU and 5 GPU blocks (for increased flow resistance) and temperatures due to resistance increased by just 2.5°C

I am so happy for you that you hit 1 million subscribers! I have been rooting for you to get to 1 million! Congrats!!!

Thank you, for making this and the other PC myths videos. So much more easy to refer to you then explain this myself. Take care!

I have a 1080ti and a 5960x both cooled on water with 2 Bitspower 480 x 30mm radiators and my temperature difference on AIDA64 under load is 3 degrees whether my fans are at 800rpm or 1500rpm. So the extra radiators help a lot with allowing the fans to run quietly and efficiently. My single 240mm AIO on the same setup would run about 15 degrees warmer at idle and would have about a 10 degree delta between those same fan speeds (same exact fans as well Corsair ML120 Pro.)

Another good video. Your quality is constantly going up and inspires me for my own channel.

Loving this content, one I've heard is that having your pump run faster will give you lower tempretures

Can't wait for the myth buster episode!

Really useful info. I've never built a liquid-cooled system, but I want to do this for my next build!

Woah that bonus really threw me, I assumed that was a major benefit of water cooling having the exhaust air be cooler and not having the room be super heated.

I'll never do a custom loop, and I still found this video entertaining. 5/5, would recommend.

Hey Jay. Great video! I just want to say I feel like during the radiator surface area myth you skipped over a good chance to cover, and perhaps may have even confused some on having enough surface area to efficiently cool. You were completely right on it cooling better beyond a certain point. What I'm talking about is having too little surface area. In turn we're actually talking about inefficient cooling and not impossible efficiency, but, some may not know the difference.

Have you ever seen any reviewer do something like investigate transient responses and used them to estimate the cooling power of radiator/fan combinations? Like, let the system heat up to a steady state then cut the CPU load, and then for a range of radiators and fan speeds, from how quickly it cools and knowledge of the mass of fluid in the system and the specific heat capacity of the fluid you'd know how much heat they could dissipate and actually be able to compare apples to apples between brands.

Nice card case. And thanks for another great video... really enjoying the "Myths" videos Jay.

actually what jay says at 2:54 is a myth: The amount your room heats up depends only on the total power consumption of your system (law of conservation of energy). The only thing that makes your room hotter when watercooling is the additional power your pump (and maybe additional fans) need, which most likely is negligible. In other words: a 1000 watt drawing pc will heat your room exactly as much as a 1000 watt heater, no matter how you cool them.

Im typing this from the cooler master masterkeys pro L rgb with mx blues and it is by far the best keyboard ive ever used, the rgb looks really bright and the mx blues feel really good.

Corsair H60 on a XEON E5-2690. Average temp=100 degrees, 900 RPM fan. Max all 8 cores 16 threads for 10-12 minutes compiling a Linux Kernel ... Temp 120 degrees, fan 1800-2000 RPM. Stock CPU Heatsink/Fan would run 3000 RPM and Temps to 190 degrees. The H60 is my first liquid cooler. And it's awesome.

I loved changing the background with new point.

Love the quality of your videos...top notch sir!

80% correct. Not bad, considering the general lack of understanding. Loop order matters, and your instruments aren't calibrated well enough to detect it. This can be mathematically proven, but I'll go simple to explain it. Heat transfer through conduction is based upon the difference in temperatures between the two surfaces. The higher the difference, the faster energy can be transferred. This is why at equilibrium the input energy from the components equals the output energy to the surroundings. This means that the more energy dumped into the system at any one point, the less can be dumped in at the next point. Thus, for the most energy transfer (and the lowest equilibrium temperature) you want to organize components such that they output more thermal energy as they get farther from the reservoir out. Why do most people think this is not the case? Put simply, your instruments are incapable of detecting it. The heat capacity of water is 4.184 Joules per gram per degree Celsius. This means that if your system has a total of one liter of water in it, or 1000 grams, it would take 4184 Joules of output energy to raise the temperature one degree Celsius. Reviewing basic heat transfer. equilibrium would then be based upon temperature difference at the block and at the radiator. whenever energy transfer from block = energy transfer at radiator, dictated by the temperature of the transfer fluid, then you reach a steady state. Now, what is a Joule, and how does it relate to watts expressed in a TDP. 1 Joule = 1 Watt/second. So, a system with a TDP of 500 watts is the same as 500 Joules, which means a system where the TDP is 500 watts would only change the temperature by about 0.125 degrees. Putting on our scientist hats for a minute, when you measure temperature in degrees Celsius how many times have you seen a gauge capable of 0.0625 degree precision? That's right, almost never. If your system only outputs 300 watts (a decent GPU and consumer grade CPU) your temperature delta is nearly insignificant. So, you missed the math. The math, and very precise sensors, could show the difference. Additionally, a different fluid (mineral oil has a capacity of about 1.67 J/g/C) would show more dramatic results. Water is functionally magic when it comes to fluids, which is why people don't quite understand what they are seeing. Please stop the disinformation. If you want to debunk this, the correct response is "Given available and affordable sensors, you won't be able to detect any appreciable difference in performance directly related to loop organization." There's a huge gap between there is none, and I cannot detect one. Thought experiment. You have a fire at one block, a small resistor at the next block, and a radiator. By organizing them such that the resistor is first, then the radiator is last, you can transfer energy from the resistor out of the system with a sufficiently large radiator. If the fire is first, then the resistor will actually absorb thermal energy because the delta in temperatures will always favor heat transfer from the loop fluid to the resistor.

Thanks Jay great video, i was interested in the bit about the length of time it takes for non conductive liquids to become conductive, it would be cool to see a follow up about that as well. Thanks again keep it up.

A few weeks ago I was browsing through Facebook ads, and a tower with a custom water loop popped up for a reasonable-ish price, so I looked at the pictures to get a better look at what condition it would be in. I tried to follow the loop through by zooming in and I figured out that it was in the opposite way. More specifically, the pump was pushing water to the radiator, which then sent it to the components, which ended up in the water tank. Basically the water was hitting the radiator BEFORE the components it had to cool down. I really wonder if the guy even managed to sell this thing.

Hey Jay. I love your new studio and all. But you should do videos at the house more. I miss seeing skunkworks in the backround and the more down to earth vibe your older videos had. Don't get me wrong I love the step up you've taken with your channel and the content has been getting better and better but every once in a while it would be really cool to see a video at home for old times sake😉

lighting looks great now mate

loving the change of the background