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I don't know what's worse being the sort
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of madman who specializes in voiding
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your customers warranties or enabling
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his Reckless Behavior the way that
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noctua has done here this small plastic
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spacer kit for their iconic Brown
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coolers is not only 100 trust me bro
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guaranteed to get your RMA rejected by
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AMD but it also increases the chance
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that something will go wrong I mean who
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in their right mind would take a cooler
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this size and bolt it directly to the
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fragile dies that live under amd's
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protective heat spreader
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20 20 degrees 20 degrees look
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that's impossible
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impossible to explain until I finish
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can learn more about them at the link in
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the video description
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[Music]
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if it was anyone else I'm not even sure
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if I would believe this but after noctua
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explained it the whole thing kind of
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makes sense and it starts with the
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creatively named noctua NM amv15 offset
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am5 mounting bars you see the thing is
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when AMD designed their am5 CPUs they
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put the i o die in the middle and they
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put the actual compute dies the ccds
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down at the bottom of the IHS this puts
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the hot spots of ryzen 7000 CPUs in a
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very unconventional place and you can
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see in noctua's illustration here how
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this hurts the performance of a typical
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cooler by having the hot spot down here
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you can see we are over utilizing the
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heat pipes on this side and under
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utilizing the ones over here
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that's where the offset bar comes into
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play watch this by simply Shifting the
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mounting mechanism seven millimeters
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downward knock to assess they can drop
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the temperature on your CPU by up to
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three degrees this is because of two
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effects first it concentrates the
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pressure over those heat generating dies
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improving thermal transfer and second it
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means more effective heat distribution
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throughout the base of the cooler so
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you're making better use of all of your
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heat pipes rather than over saturating
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some and under utilizing others these
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results are really impressive and
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reinforce what we found in water cooling
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Through the Ages where we saw that from
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generation to generation the performance
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improvements were less about actually
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just building a better water block and
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more about tuning the water block better
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for modern processors so while ryzen
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3000 and 5000 can benefit from this
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offset Mount it's not to the same degree
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pun intended as ryzen 7000 because those
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ones have much thinner ihs's we'll be
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talking about that in a second in
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typical noctua fashion it'll be
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available affordably for all their
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desktop class coolers going back to
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2005. but Linus you might say up to
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three degrees is not almost 20 degrees
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what's the deal with the rest of that
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that is where this comes in these small
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plastic spacers allow noctua coolers to
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be mounted to d-litted CPUs and they're
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the result of a collaboration with their
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Bauer I mean it looks like the simplest
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thing in the world a little piece of
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plastic how could that drop you 15
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degrees except
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the devil's in the details look how
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thick this is ah so I haven't played
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around with delighted ryzen 7000 yet but
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it seems that to maintain cooler
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compatibility with the lower profile LGA
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socket compared to their last generation
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pin CPUs AMD made the IHS much thicker
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which is contributing to some of the
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thermal challenges that users are seeing
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the solution
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well if you hate having a warranty you
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can do this
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step one get your hands on a d-litted
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ryzen 7000 series processor given they
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developed the products collaboratively
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noctua recommends the one from Roman
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sold under the thermal Grizzly brand
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they've been doing a lot of that collab
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sort of stuff lately step two install a
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direct die mounting frame like this one
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again from thermal Grizzly this isn't
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strictly necessary but it dramatically
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reduces the risk of accidentally
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cracking one of these delicate dies as
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you're tightening down your cooler I
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wouldn't even consider mounting a cooler
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direct eye these days without one of
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these frames next you're going to need
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some liquid metal thermal compound okay
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you don't actually need it but the issue
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is that the benefit of this modification
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with traditional thermal paste is very
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low only about two to four degrees
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this is because even though amd's IHS is
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too thick at least it's soldered so it's
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pretty fast at moving heat from the
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hottest parts of the dyes I mean it's
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right in the name right it's a heat
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spreader so if we use a traditional
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thermal compound right on these dies it
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can be somewhat overwhelmed by the
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concentration of these hot spots heat
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flux density is the term that noctua
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used but for all but the most technical
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of our viewers that's unlikely to mean
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anything so finally you'll need knock to
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his offset Mount that I showed you guys
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before okay you don't need it but if
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you're going to avoid your warranty why
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settle for 10 to 17 degrees of
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improvement when you can have anywhere
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from 12 to 19. that is the cumulative
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benefit of all of these little changes
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though now that your warranty is void
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there are a couple of more things to
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consider die cracking that's less of a
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concern thanks to the contact frame but
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liquid metal on any one of these little
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surface mount components would be a big
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problem so I would suggest some nail
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polish or conformal coating or some
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protective covering for the ones that
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aren't already covered and here's the
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coolest part noctua isn't even forcing
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you to buy this spacer if you get your
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direct eye contact frame and all this
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stuff from other companies they will
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make literally nothing providing you the
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STL files of these spacers on
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printables.com but they're doing it
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anyway then all you need to do is Source
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slightly longer screws and they're going
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to have the information about which
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screws you'll need on the printables
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page again this works with the vast
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majority of Knoxville coolers since 2005
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and is launching at the end of July but
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that doesn't mean that all cooling
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Innovation is down to changing the
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position and avoiding your CPU warranty
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meet the next gen nhd15 it's got a
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whopping eight heat pipes now compared
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to six on the original and that's just
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the beginning the heat pipes are
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optimized for better performance you
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know optimizing wall thickness Wick
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structure all that kind of stuff but the
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big one is this fan it's finally here
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after what is this eight long years of
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product development their new 140
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millimeter fan and thanks to its
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incredible performance giving it up to
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three degrees better performance
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compared to their old one on a radiator
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they were able to increase the surface
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area of the fin stack here by 20 meaning
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that this should be good for anywhere in
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the neighborhood of about three to four
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degrees of improvement over the already
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legendary NHD 15. now of course that's
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on a 300 watt heat load so you better be
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running an Intel CPU got him which is
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why noctua actually doesn't recommend
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buying this if you have a 65 watt CPU
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what they would recommend is that I do
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this segue to our sponsor thanks to
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you enjoyed this video what the hey why
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don't you go check out our one on the
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development of the screwdriver which uh
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this actually reminds me a lot of
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because For Better or For Worse I take a
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ton of inspiration from these guys only
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shipping things once they are
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absolutely ready
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