WEBVTT

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feels like every time i come in this room it's some crazy cooling experiment

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usually with you the air con is good in here

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which is

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and that actually probably makes sense because this room isn't big enough for

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us to actually hold meetings in here anymore and because we're at it yet again this right

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here is a bizarre cooling product this is the

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ic graphite thermal pad

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the last thermal interface you will ever need

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they claim that this thermal pad

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performs as well as thermal paste

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it is extremely durable so it could last for decades

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and it's reusable

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let's investigate shall we

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below

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ow

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well it conducts heat yeah really well especially in the x y

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all right so what the hell is this thing

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so that's totally graphite um which i guess is carbon

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i don't know exactly what to say for the what exactly is this i have notes um

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this is the innovation cooling graphite thermal pad

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the goal of it is to replace traditional thermal pastes in long-term applications

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its main advantages are its easy application there's no guessing how much

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to put on it's extremely long life and

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it's high resistance to thermal changes which make it also good for extreme

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cooling scenarios where liquid metal or normal thermal paste might freeze

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so in a nutshell what they're saying is that this pad

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even though it will be so thick compared to a paste has no real disadvantage

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compared to spreading goop on your CPU

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well one disadvantage is that it

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is electrically conductive so

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one yeah like two ohms

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which is like better than a wire but if you just toss it on your motherboard

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it's going to fry it so

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okay so you do have to be more careful but unlike liquid metal it's not going

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to seep out yeah it's not going to just go everywhere you can

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get it pretty on there so would you just cut it to size if you had something that

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was yeah so the main spec on this is its thermal conductivity 35 watts per meter

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kelvin but i think probably most people wouldn't have a ton of context for what

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that means so compared to like ic diamond that's

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really high so this is like four and a half watts per meter kelvin so it should

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be able to conduct a lot of heat through it

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but what is a watt per meter kelvin

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you don't know exactly do you no why do i even employ these people i'm looking

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it up right now unfortunately there are differing definitions for these terms

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okay so quantity of heat that passes in a unit time through a plate of

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particular area or thickness when opposite faces different

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temperature by one kelvin

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so that means that if there's one kelvin difference between the two

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you can conduct 35 watts per meter so it

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actually makes a lot of sense when you think about it like that cool let's try it

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this is trippy man like

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cleaning all of the paste off

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and having it just like dry mounted

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like there are things in life that feel natural to mount dry

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and there are things and there are things that don't

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uh so an advantage to this dry approach

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is that there's no liquid

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like you know most thermal compounds are some kind of a suspension of some sort

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so there's no liquid to eventually evaporate or dry out or mush out or

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anything like that it's just that's just it you just plunk it on there this is

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crazy just for the sake of you know transparency

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no thermal paste double screw on the driver oh you

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finished first now i feel awkward

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okay it's trippy like it seems like it it's

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not right you know so we're looking at this is a 7980xe

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with liquid metal in it okay so we're looking at an average

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temperature across all cores of 50.56

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and that was with ic diamond yeah so i see diamond might not be the highest

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performance thermal compound but it's very respectable they're all within what

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like two degrees of each other at the high end yeah i mean we had that bulk stuff that

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didn't perform particularly well that video is worth watching you can check

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that out here well nothing's immediately concerning nope that looks very

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impressive yeah what did we get on icy diamond

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max 58 average 50.56

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like it should perform in everything that i've read

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one to two degrees worse but

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i mean that's part of the argument for a solution like this

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that there's no room for user error

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yeah like i might have done a bad core application or a bad mount so at the end

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of the day that's the conclusion of this video alex is a bad man

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we won't know for another uh 20 minutes or so

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or maybe five minutes i don't know

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all right so it's been

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hours yeah yeah okay cool how do we do

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plus 50 plus what's the point of even having a fancy

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ass calculator if it doesn't get it right well it's not the calculator's fault

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so it's the user heatsink's barely warm which i guess

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makes sense it still trips me out so this one from

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alex's pre-testing has actually been used a couple times

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and innovation cooling told us that they've had people beta testing these

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that have reused them like over 20 times

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over 50 even over 50 yeah over 50. all

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right so our average is 51.7

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so exactly what we expected okay so all

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that's left for me then is

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i want to i want to see like is it thinner yeah like i don't know like

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let's shut it down all right oh one thing that is cool about it is

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that it has um the 35 watts per meter

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kelvin that's in the z direction so like up and down

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but it's 800 ish 800 000 they're not totally sure

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what's per meter calvin from side to side oh so that's why it burned me when

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i torched it yeah so that's really good if you have like a hot spot on your CPU

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it'll get it out to the heat pipes really well

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one thing i don't like about it that much is the size

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why well

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i mean that looks fine for a core i9 but if i was cooling something like a

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threadripper or one of Intel xeon scalables or something like that like a

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really big chip i

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kind of feel like you could actually have die area

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can you just use potentially not covered i i don't know it's a wonderful question

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i don't know the answer to that so it should be like that in

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theoretically nothing would ever happen to it at all yeah they said lifetime

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it should be about the same i think the coolest thing about this for

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me is like you know for the last 10 20 years you know every other month there's

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like a big article about how you know

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carbon nanotubes or this other novel implementation of carbon is going to

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completely revolutionize everything and up until now at least in the thermal

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space although theoretically it has great thermal properties we haven't

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really seen anything and now here it is you can buy it you

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can stick it in your computer yeah completely commercial

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and it works

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video description that's freshbooks.com tech tips and then enter Linus tech tips

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in the how did you hear about us section so thanks for watching guys if you

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disliked this video you can hit that button but if you liked it hit like get subscribed maybe consider checking out

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description is our merch store which has cool shirts like this one as well as our

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community for ooh i'm sorry and our community forum which you should totally

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join so like theoretically there's no reason

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for us to ever apply thermal goop again we just throw

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these on everything from now on and just reuse them forever like i guess we could

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yeah take that thermal paste

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no no it's like

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you've got so much of it though