Why do we rarely see copper heatsinks now?
>>107515831Copper prices. We are building green co2 neutral diversity friendly chargers for electric vehicles and that use tons of copper and copper mines need to be digged deeper
>>107515831it is weird considering how goated copper is when conducting heatalso weird to see a modern 8 heatpipe cooler struggling to cool a 60W cpu, must be the shittiest alloy
>>107515831More expensive + aluminium is good enough for the vast majority of applications /thread
>>107515831Because it's not that much better compared to modern nickel plated heatpipes and super dense aluminium fins.
>>107515831Meth people are attracted to it, if you had that your home would surely be broken into for it
Imagine the weight.
>>107516501>Because it's not that much better>>107516359>aluminium is good enoughcopper has almost 2x thermal conductivity compared to soiluminum5x compared to iron and nickel25x compared to stainless steel
>>107515831Now it's usually a small copper pad to get the heat off the thing being cooled and then transfer it into a larger mass of cheaper aluminum.
>>107515831Shame they're so rare. They look so damn good
>>107515862This plus we need lots and lots of copper to build trendy mechanical keyboard cases with copper bottoms
>>107515831because NO MORE DEAD COPPERS
>>107515831cooper is really expensive nowadays and aluminium is good enough.
>>107515875I remember back in the Socket A days some company made a sink with a silver base and copper finsyou'd never see that now, especially since silver is only like 10% more conductive than copper
>>107515831>Why do we rarely see copper heatsinks now?Weight! Motherboards are now oriented vertically; they no longer lie flat. Therefore, the cooler is mounted sideways and attached to the thin motherboard with four screws. The CPU is the pivot point in the center, and the cooler's length (height) acts as the lever. You can add thousands of hours of vibration...I'm not sure if the thermal conductivity of aluminum is more or less the same, but I believe you can use less aluminum and achieve better efficiency. If you have to buy aluminum or copper in bulk, you get three times as much metal and, as a result, only pay a third.
copper is WAY better than aluminum at conducting heat, yes, but it isn't significantly better at CONVECTION which is how fans work. "why aren't radiators made from copper?" same reason: it's bottle-necked at the convection step. radiators are big and fluid has a long contact time with the radiator so the increased conductivity isn't worth the cost.
>>107516541And yet aluminium is still good enough.
>>107515831It's too heavy to transport to be economical, similar to CRTs. Not cost-effective for this Jewish economy. Your LGA 775 era builds were too well built.
>>107516541And? Silver is an even better conductor than copper.
>>107516784why cant the heatsink and mobo be fixed to the case at that point
>>107516541If your fins are at an even temperature (which they likely are for the most part) the heat transfer to the air is the bottleneck anyway so it literally doesnt matter and increasing surface area would do more
>>107515831I mean Thermalright does make some copper SFF CPU coolers. And they basically are the best SFF aircoolers on the market right now. But yeah if Thermalright or Noctua or any other company would make 120mm copper tower coolers once again I would buy one. Right now a used Thermalright True Copper is 450€ on ebay and yeah I'm not paying that much for one especially.
>>107516510
>>107516541heat pipes have vastly higher thermal conductivity than copper (they just have a cap on how much energy they can transfer), and for fins the limiting factor is airso copper is mostly used for heat-pipe-less heatsinks in 1U servers and such
>>107515831Aluminum has better heat dissipation. Full copper heatsinks were just bling, they weren't better.
>>107517444https://www.engineeringtoolbox.com/emissivity-coefficients-d_447.htmlbest case scenario is anodized black aluminum finsthe more shiny the surface is, the worse the heat emission
>>107515831Because AI have replaced the job of copper heatsinks now. Welcome to the new age, grandpa.
>>107515831Too expensive and heavy for little benefit.Copper heatsinks became irrelevant as soon as tower heatpipe coolers became mainstream.
>>107517572dark color only affects radiation. conduction and convection are hundreds of times faster at heat transfer. it's relevant for satellites but not for anything in your computer
>>107517769ok. how does aluminum and copper compare in convection? I know thermal conductivity is double in copper
>>107517086>why cant the heatsink and mobo be fixed to the case at that pointThe most effective way to support weight is to utilize tensile forces. If you've upgraded your graphics card or a massive heatsink requires it, it is best to use a few cable ties (from cable management?) and attach them to the top of the case. Then all that's needed is a little improvisation…
>>107516541that only matters if you're already using the other material to its full potential.
>>107517769>dark color only affects radiation.>it's relevant for satellites but not for anything in your computerThe matte, dark surface serves only to improve heat dissipation to the air flowing through it. Therefore, it's also relevant in a computer.>>107517572>the more shiny the surface is, the worse the heat emissionInteresting fact! Aluminum immediately forms a matte oxide surface when exposed to air. Copper is often preferred because of its unique shiny look.
>>107515831Fucking useless, better use all that copper on more heat pipes
>>107517290>bro the bottleneck is actually airflow bro get a 900000 rpm fan browrong.
>>107515831An all copper hyper212evo would be $90
>>107518151>refuse to elaborate
>>107516359aluminium is a neurotoxin
>>107518854So don't eat your heat sinks
>>107518064>>The matte, dark surface serves only to improve heat dissipation to the air flowing through it. Therefore, it's also relevant in a computer.an improvement of 0.01% may exist and be measurable but definitely isn't relevant.
>>107515831you might as well just make it yourself
Cost and does your machine really need a copper heatsink?
>>107519531do you really even need a machine?
>>107517831Convection isn't dependent on material properties, only on geometry and properties of the airflow.
>>107515831Oxidation may be an issue. Copper oxide is electrically conductive, aluminum oxide is not.
>>107517086I think there's an anchor point for the mobo nearby, but it's still better to not put too much weight on things. I use a water cooler so most of the heatsink mass is located elsewhere in the case. (More weight overall, but less on the cpu.)
>>107516735those cpus ran hot as shit, the 754 heatpipe coolers were miles better than them and by am2/am3 days no one was going to pay a premium for copper fins when there was water cooling
>>107516648wow that's beautiful
>>107515831Aluminum is cheap, easier to roll into flat sheets, nearly as thermally conductive, lighter, less toxic to everything around it, cheaper etc.But yeah ask nostalgic millenial idiots of this board about that and you'll get the answer you baited for (>>107516541)
>>107520369>Its cheaper but worse than copper>But if you want, you can read this post also telling you its cheaper but worse than copper
>>107520396I'll hint you that fins aren't the bottle neck but heatpipes, but you'd have to know how modern heatpipes work and you don't sooo
>>107515831copper is heavier, more expensive, and while it holds more heat, it takes more air to remove the heat.
>>107515831I blame the sea people
>>107515831Blame Ea-nāṣir. He continuously delivers substandard copper ingots and insults my manservant.
>>107516784>Motherboards are now oriented vertically.No they're not. The earth hasn't had gravity change in the last 20 years, buddy.You did that. You. Put the motherboard into the case and put the case down the wrong way. Not I.
>>107520676redpill me about the sea people. were they the original vikangz?
>>107516784I just have my computer case lie on it's side.everybody acts like im crazy.But I know, IIII KNOOOOW!!!
>>107520820How is he supposed to work well with all those dead kids under his floor in his strange house?
>>107515831Because you're using trash gaymerslop hardware.
>>107515831Because pure copper doesn't offer much better thermal conductivity then aluminum for the mass and cost. It just has more thermal capacity. If you are looking for thermal capacity then you going the water-cooling route anyway which water is nearly peerless at.Modern metals use copper-aluminum mix. The copper is only used for interface and rest of the heatsink and is aluminum.
>>107522309He should have thought about that before putting dead kids under his floor
>>107516541>copper has almost 2x thermal conductivity compared to soiluminumAnd yet the last time I saw people test full copper coolers they were only 1-2C better than aluminium ones.
>>107518407>An all copper hyper212evo would be $90And it wouldn't cool significantly better because the majority of the heat transfer is done by the heatpipes.
>>107516541Then make one out of diamond you dumbass
>>107516359this, also the weight.>>107516541not coping well
>>107515831The copper all went to radiators and water blocks.
>>107515831It's heavy, it's expensive, and aluminum is good enough.
>>107523600weight hasnt stopped manufacturers from putting out 3.3kg / 7lbs gpus
>>107515831It's more about "you get what you pay for", always has been.
Anon say it's expensive, but why can people 20 years ago afford it?You're just sperging out fake reasons really
>>107523627>buy $8000 gpu>still comes with cheap aluminum heatsinkswhat now
>>107523696>what nowyou got scammed
>>107523680prices fluctuations, goy. nothing to look at here.
>>107518854Maybe stop running your computer at a temperature that is high enough to vaporize the heatsink
>>107516541aluminum is lighter and it has a superior heat capacity, and doubling your thermal conductivity doesn't actually help that much because you run into diminishing returns at the heat loads we're talking about <500w, especially when you consider that most heatsinks are hybrid designs, copper cold plate, with copper heat pipes connected to aluminum fins stacks, you can put more fins( and thus surface area) for the same weight,
>>107524579>because you run into diminishing returns at the heat loads we're talking about <500wOh well, that's fine then, because nvidia make cards that pull over 500W, bring back the copper.
>>107515831Too fucking expensive not much to gain from it
>>107523696thiswhy can't a premium product have silver heatsink on itcheap out on small things like a kike
>>107517701anon, copper heatsinks werent just blocks of copper, they are heatpipe tower coolers with copper fins and copper contact platespic related, my lga 775 heatsink of choicethis keeps a q6600 at 52c under sustained load
>>107525427zalman sucked. it cost around 60 bux, but even a 20 bux xigmatek tower cooler beat it.
there was a colorful kudan 680 prototype which was made of nearly solid copper with a liquid nitrogen circulation system this alongside an entirely passive cooled 680 with "heatsink sli" but that wasnt made entirely of copper
>>107515831>pricier than aluminum>prone to copper oxidationThese two are the reason a lot of heatsinks have copper heat pipes inside but are mostly aluminum in construction.
>>107515875I use a thermalrite phantom spirit with 7 copper heatpipes and aluminium fins. My 65w cpu that boosts to 125w never gets above 60c.
>>107528238It's also worth noting that this is with fan profiles being silent. I could easily crank the fans and keep it even lower if I didn't mind fan noise.
>>107524969>buy $3000 5090>it doesn't come with a platinum heat sinkwtf am i even paying for
>>107528294this but unironically
>>107528294>>107528322You're paying to enrich some island gook
>>107528294but 5090 is not premium
Cases are big enough to handle larger aluminium heatsinks that can fit +120mm fans, which it what you want for less noise.Making a large but sparse copper heatsink is retarded in comparison.You put copper heatsinks in laptops and phones where space is a concern.
>>107515831Copper is great at conducting heat, but not as good at radiating it away as aluminium.It's also way more expensive and heavier.
>>107528459But is radiation even relevant?From my understanding the metal is used to increase the surface shared with the surrounding air to transmit the heat by contact (therefore the finns) and not by radiation?
>>107529592radiation isn't relevant. the bottleneck is convection, so even aluminum for the fins is fine. copper is used at the base and heat pipes so you dont' create hotspots on the die, since it is 2x as conductive as aluminum and will spread the heat out better. Making the entire setup copper offers little benefit, costs more, weighs more, and copper's oxidation layer may affect things worse than aluminum's tiny oxidation layer.
>>107529671So for passive cooling the most reasonable setup is copper internally and aluminium for the surface spread?
None of what posted in this thread except for this >>107516784 explains why people that buy high end pcs don’t use copper. I’m sure that there are plenty of people that wouldn’t care about the price increase if it gave them performance and lower fan speeds.>Copper coolers generally provide better thermal conductivity and heat dissipation compared to aluminum coolers, making them more effective for cooling. However, aluminum is lighter and cheaper, which is why many coolers use a combination of both metals for optimal performance and cost efficiency.
The PS5 is a great example, where they have been reducing as much copper as possible with each new revision of the console. Chassis C is the latest one.
Fans make a bigger difference in cooling than the fin material. With heat pipes being common it's not hard to move heat away from the source anymore. So why spend the extra money on a heavier material that doesn't have a big impact on performance?
>>107521355There's a lot we don't know, and what we do know is a mixed bag. A lot of them were viking-like, but many of the later waves (debatably) credited with the bronze age collapse are hypothesized to be raider-refugees, fleeing turmoil or collapse that occurred due to a series of different natural disasters, in a way that built on itself as things got worse.The first group of raider-refugees flees a drought/famine, raids the region next door, then the order/stability of that region falls apart, and then there are twice as many raider-refugees fleeing to the next region over, and so on.
miss the old pimp rig scene
>>107530217And at the same time the price keeps increasing every couple months.
>>107530763this >>107524969 would shut your mouth for good
>>107531262A duct, to the outside of the case would do more for cooling than a silver heatsink.
>>107530763Because it still has an impact and looks nice and I'd pay money for the product
>>107531439you are still not getting the point.the best product = do not cut corners
>>107531493>the best product = do not cut cornersI don't even know how to respond to the profound retardation of this statement
>>107531529because it's truth
>>107531493the best product good looking, sir
I pulled a copper heatsink off an old HP Pentium 4 socket 478 system and it's currently cooling my 14-core processor very well.
>>107530810All we know is the Egyptians wrote about specific people they knew attacking them from the sea in one battle, and then a larger invasion decades later in which they hypothesized about which people it might have been. There's not even proof it was the same people in both cases. Supposedly, the second time, they came in mass migration numbers and were looking for a place to settle. Everything else is pure speculation and we'll probably never know
>>107521355https://youtu.be/aq4G-7v-_xI
