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Copper
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FoxtrotDeltaTango sh.itjust.works FoxtrotDeltaTango@sh.itjust.works
Joined: 2026-01-20
Quote

cross-posted from: https://piefed.social/c/historymemes/p/1836852/copper

926   Original
BCsven lemmy.ca BCsven@lemmy.ca
Joined: 2023-06-17
#2 · (edited) Quote Reply

Till it all gets to temp then it won't do much. It needs some more surface area to convect heat better.

With enough fins you don't need fans.

84
AeronMelon lemmy.world aeronmelon@lemmy.world
Joined: 2023-12-26
#3 · Quote Reply

Toblerone Gaming Heat Sink.

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Jakylla jlai.lu Jakylla@jlai.lu
Joined: 2023-06-30
#4 · Quote Reply

A block of diamond would be even better (copper being at 401 W/mK, Diamond at 3320 W/(mK), almost 10x better)

28
cRazi_man europe.pub cRazi_man@europe.pub
Joined: 2025-06-04
#5 · Quote Reply

Till it all gets to temp then it won't do much. It needs some more surface area to convect heat better. With enough fins you don't need fans.

Would a slow small fan still make a huge difference to the cooling here? Completely passive cooling seems like something that would only make sense in very specific professional environments (like needing an ultra low sound floor in an audiology chamber or recording studio).

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Canadian_Cabinet lemmy.ca Canadian_Cabinet@lemmy.ca
Joined: 2023-06-13
#6 · Quote Reply

Till it all gets to temp then it won't do much. It needs some more surface area to convect heat better. With enough fins you don't need fans.

Is your motherboard connected to two giant case-sized heatsinks? I'm struggling to see the big picture here

4
jackeroni lemmy.ml jackeroni@lemmy.ml
Joined: 2025-05-26
#7 · Quote Reply

NO that swindler gave me subpar copper!

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Zachariah lemmy.world Zachariah@lemmy.world
Joined: 2023-06-13
#8 · Quote Reply

A block of diamond would be even better (copper being at 401 W/mK, Diamond at 3320 W/(mK), almost 10x better)

with the way prices are going, carbon based heat dissipation may become the preferred option

how pretty would it be if it was a tree-like crystal structure

10
rockSlayer lemmy.blahaj.zone rockSlayer@lemmy.blahaj.zone
Joined: 2025-02-24
#9 · (edited) Quote Reply

A block of diamond would be even better (copper being at 401 W/mK, Diamond at 3320 W/(mK), almost 10x better)

But only 3-5 diamonds are generated per chunk, requires an iron pickaxe, and usually doesn't start appearing regularly until Y level 14.

Meanwhile copper can have up to 16 veins of copper per chunk, requires a stone pickaxe, and appears most frequently at Y=48.

Copper is clearly more accessible for making ore blocks.

Wait a sec, this isn't !minecraft@lemmy.world

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Zachariah lemmy.world Zachariah@lemmy.world
Joined: 2023-06-13
#10 · Quote Reply

Till it all gets to temp then it won't do much. It needs some more surface area to convect heat better. With enough fins you don't need fans.

the other option is

only fans

96
Syndication lemmy.today Syndication@lemmy.today
Joined: 2026-01-03
#11 · Quote Reply

Is your motherboard connected to two giant case-sized heatsinks? I'm struggling to see the big picture here
[deleted]
2
Gork sopuli.xyz Gork@sopuli.xyz
Joined: 2023-06-01
#12 · Quote Reply

Till it all gets to temp then it won't do much. It needs some more surface area to convect heat better. With enough fins you don't need fans.

With big enough copper block it might not matter (like the size of a house, but of the good quality stuff not that shit Ea-Nasir sells).

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radix lemmy.world radix@lemmy.world
Joined: 2023-06-11
#13 · Quote Reply

Is your motherboard connected to two giant case-sized heatsinks? I'm struggling to see the big picture here

Oops, all heatsink

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deliriousdreams fedia.io deliriousdreams@fedia.io
Joined: 2025-11-01
#14 · Quote Reply

I am suddenly reminded of that Tech Ingredients video on YouTube where he turned a A/C window unit into a liquid heat pump.

3
rain_enjoyer sopuli.xyz rain_enjoyer@sopuli.xyz
Joined: 2025-05-03
#15 · Quote Reply

Till it all gets to temp then it won't do much. It needs some more surface area to convect heat better. With enough fins you don't need fans.

what is that white box on the bottom connected to

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fartographer lemmy.world fartographer@lemmy.world
Joined: 2025-06-29
#16 · Quote Reply

Would a slow small fan still make a huge difference to the cooling here? Completely passive cooling seems like something that would only make sense in very specific professional environments (like needing an ultra low sound floor in an audiology chamber or recording studio).

I had a roommate who was getting his doctorate in chemical engineering, specifically focused on graphene. He was able to demonstrate how doping the materials in a heat sink to alter their ability to "release" heat, and then organizing these intentional hotspots along the length of the fins, you could create an active airflow using a stationary object.

But then his lab manager killed his grant and instead put him on a project partnered with BMW to make their bumpers more marketable.

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SkaveRat discuss.tchncs.de SkaveRat@discuss.tchncs.de
Joined: 2023-07-09
#17 · Quote Reply

NO that swindler gave me subpar copper!

I don't believe you. You probably didn't even write a support ticket about it

2
StillAlive piefed.world StillAlive@piefed.world
Joined: 2025-11-09
#18 · Quote Reply

Toblerone Gaming Heat Sink.

Toblerone has one identifier, its triangular shape. ☝️🤓

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kibiz0r midwest.social kibiz0r@midwest.social
Joined: 2023-07-14
#19 · Quote Reply

Customer

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shelf piefed.social shelf@piefed.social
Joined: 2025-06-29
#20 · Quote Reply

I had a roommate who was getting his doctorate in chemical engineering, specifically focused on graphene. He was able to demonstrate how doping the materials in a heat sink to alter their ability to "release" heat, and then organizing these intentional hotspots along the length of the fins, you could create an active airflow using a stationary object. But then his lab manager killed his grant a...

That's a shame that sounded really cool.

10
kernelle lemmy.dbzer0.com kernelle@lemmy.dbzer0.com
Joined: 2025-09-18
#21 · Quote Reply

But only 3-5 diamonds are generated per chunk, requires an iron pickaxe, and usually doesn't start appearing regularly until Y level 14. Meanwhile copper can have up to 16 veins of copper per chunk, requires a stone pickaxe, and appears most frequently at Y=48. Copper is clearly more accessible for making ore blocks. Wait a sec, this isn't !minecraft@lemmy.world

Back to the mines with you, you're yearning

18
Malyca lemmy.zip Malyca@lemmy.zip
Joined: 2026-04-13
#22 · Quote Reply

I had a roommate who was getting his doctorate in chemical engineering, specifically focused on graphene. He was able to demonstrate how doping the materials in a heat sink to alter their ability to "release" heat, and then organizing these intentional hotspots along the length of the fins, you could create an active airflow using a stationary object. But then his lab manager killed his grant a...

Really makes you wonder how many revolutionary ideas have fallen through the cracks because of moron management

30
itrealgood mander.xyz itrealgood@mander.xyz
Joined: 2026-04-05
#23 · Quote Reply

[deleted]
182
Truscape lemmy.blahaj.zone Truscape@lemmy.blahaj.zone
Joined: 2025-06-20
#24 · Quote Reply

But only 3-5 diamonds are generated per chunk, requires an iron pickaxe, and usually doesn't start appearing regularly until Y level 14. Meanwhile copper can have up to 16 veins of copper per chunk, requires a stone pickaxe, and appears most frequently at Y=48. Copper is clearly more accessible for making ore blocks. Wait a sec, this isn't !minecraft@lemmy.world

This is after 1.18, Diamonds are most commonly found at Y=-54 now.

9
Sam_Bass lemmy.world Sam_Bass@lemmy.world
Joined: 2024-04-08
#25 · Quote Reply

so how many grams is that?

4
GreenKnight23 lemmy.world GreenKnight23@lemmy.world
Joined: 2024-09-21
#26 · Quote Reply

[deleted]

the sound of silence

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orbituary lemmy.dbzer0.com orbituary@lemmy.dbzer0.com
Joined: 2023-06-14
#27 · Quote Reply

Really makes you wonder how many revolutionary ideas have fallen through the cracks because of moron management

Black pilled by monetary interests.

13
MonkderVierte lemmy.zip MonkderVierte@lemmy.zip
Joined: 2025-05-30
#28 · Quote Reply

But is it really copper?

8
MonkderVierte lemmy.zip MonkderVierte@lemmy.zip
Joined: 2025-05-30
#29 · Quote Reply

what is that white box on the bottom connected to

Passive cooling fins.

2
SCmSTR lemmy.blahaj.zone SCmSTR@lemmy.blahaj.zone
Joined: 2023-07-24
#30 · Quote Reply

A block of diamond would be even better (copper being at 401 W/mK, Diamond at 3320 W/(mK), almost 10x better)

What's the K

2
dangrousperson feddit.org dangrousperson@feddit.org
Joined: 2024-06-24
#31 · Quote Reply

what is that white box on the bottom connected to

I think that would be a spot to connect a GPU to the heatsink as well

3
BCsven lemmy.ca BCsven@lemmy.ca
Joined: 2023-06-17
#32 · Quote Reply

what is that white box on the bottom connected to

The empty copper block is for a GPU, but I'm running this primarily as a silent server so I didn't bother with the GPU since it has integrated Graphics.

4
BCsven lemmy.ca BCsven@lemmy.ca
Joined: 2023-06-17
#33 · Quote Reply

Would a slow small fan still make a huge difference to the cooling here? Completely passive cooling seems like something that would only make sense in very specific professional environments (like needing an ultra low sound floor in an audiology chamber or recording studio).

The case has an opening for a vertical fan but it is not needed unless you do heavy gaming and run a high end GPU. For video rendering and other tasks the fins are rated to keep it at a decent temp.

I have good hearing, and a HDD spinning or even a "silent" fan is still audible droning noise to me.

This build is totally silent. The PSU is over-rated on purpose because it has a below 30% max draw mode that is fanless.
So this case makes 0 noise.

9
BCsven lemmy.ca BCsven@lemmy.ca
Joined: 2023-06-17
#34 · (edited) Quote Reply

Is your motherboard connected to two giant case-sized heatsinks? I'm struggling to see the big picture here

Its a monsterlabo case, they made fanless heatsink systems...I think they may have gone out of business a few years back because a silent case is very niche.

https://www.vortez.net/news_story/monsterlabo_the_first_chassis_now_available.html

5
Destide feddit.uk sirico@feddit.uk
Joined: 2023-07-04
#35 · Quote Reply

Saturation for the nation

2
BCsven lemmy.ca BCsven@lemmy.ca
Joined: 2023-06-17
#36 · (edited) Quote Reply

[deleted]

It's a monsterlabo case. They used to make a few models that were all heatsink so you didn't need fans. I think they might have gone out of business because their website has no stock left for ordering, etc. Too niche a product to sustain sales probably.

Edit. No website anymore either.

But here's the case I have. https://www.vortez.net/news_story/monsterlabo_the_first_chassis_now_available.html

3
scutiger lemmy.world scutiger@lemmy.world
Joined: 2023-06-12
#37 · Quote Reply

What's the K

Ketamine

3
vaultdweller013 sh.itjust.works vaultdweller013@sh.itjust.works
Joined: 2023-07-08
#38 · Quote Reply

NO that swindler gave me subpar copper!

You didn't pay him for a previous services. Ya get what ya pay for.

1
ruuster13 lemmy.zip ruuster13@lemmy.zip
Joined: 2025-07-09
#39 · Quote Reply

Toblerone has one identifier, its triangular shape. ☝️🤓

But there is another.... the convection space between the fins.

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Courtney (she/her/they) lemmy.blahaj.zone EggInDisguise@lemmy.blahaj.zone
Joined: 2026-04-10
#40 · Quote Reply

But there is another.... the convection space between the fins.

I remember when that space was less.... Spacious.

37
stoicmaverick lemmy.world stoicmaverick@lemmy.world
Joined: 2023-07-17
#41 · Quote Reply

Okay, who gets to be the lucky one to calculate the amount of time that thing could heat sink a pegged, modern, 120w TDP CPU before it throttles at 100C? I'll give you a sticker.

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KSP Atlas sopuli.xyz KSPAtlas@sopuli.xyz
Joined: 2021-09-25
#42 · Quote Reply

Okay, who gets to be the lucky one to calculate the amount of time that thing could heat sink a pegged, modern, 120w TDP CPU before it throttles at 100C? I'll give you a sticker.

Let's assume the dimensions of the copper block are 40mm40mm160mm (I'm not taking the heat spreader into account here)

That results in a volume of 256000mm3, or 256cm3

Copper (at 20C) has a density of 8.935 g/cm3, so that's roughly 2.28736kg of copper

Copper has a specific heat capacity of 384.603 J/(kg K)

Using E=cm∆t, we can figure out that it would take ≈ 70378J of energy to heat the copper block to 100C, starting at 20C

With a TDP od 120W, that means it would take 586 seconds to heat the block to 100C, or 9m46s

This is probably way off but I was bored

60
SleeplessCityLights programming.dev SleeplessCityLights@programming.dev
Joined: 2025-10-03
#43 · Quote Reply

Let's assume the dimensions of the copper block are 40mm40mm160mm (I'm not taking the heat spreader into account here) That results in a volume of 256000mm3, or 256cm3 Copper (at 20C) has a density of 8.935 g/cm3, so that's roughly 2.28736kg of copper Copper has a specific heat capacity of 384.603 J/(kg K) Using E=cm∆t, we can figure out that it would take ≈ 70378J of energy to heat the copper ...

Your napkin math is the best we have. We will make all decisions based on it.

50
Dpek lemmy.zip Dpek@lemmy.zip
Joined: 2026-07-03
#44 · Quote Reply

But is it really copper?

Lets hope CCA doesnt strike again

5
potpotato lemmy.world potpotato@lemmy.world
Joined: 2024-02-24
#45 · Quote Reply

Let's assume the dimensions of the copper block are 40mm40mm160mm (I'm not taking the heat spreader into account here) That results in a volume of 256000mm3, or 256cm3 Copper (at 20C) has a density of 8.935 g/cm3, so that's roughly 2.28736kg of copper Copper has a specific heat capacity of 384.603 J/(kg K) Using E=cm∆t, we can figure out that it would take ≈ 70378J of energy to heat the copper ...

Account for convective loses into air?

6
Dpek lemmy.zip Dpek@lemmy.zip
Joined: 2026-07-03
#46 · (edited) Quote Reply

But there is another.... the convection space between the fins.

A bar of disappoitment

3
Axolotl feddit.it Axolotl_cpp@feddit.it
Joined: 2025-10-10
#47 · Quote Reply

I had a roommate who was getting his doctorate in chemical engineering, specifically focused on graphene. He was able to demonstrate how doping the materials in a heat sink to alter their ability to "release" heat, and then organizing these intentional hotspots along the length of the fins, you could create an active airflow using a stationary object. But then his lab manager killed his grant a...

Who knows how many great ideas we have lost because of bad management and capitalism...sigh

8
Dpek lemmy.zip Dpek@lemmy.zip
Joined: 2026-07-03
#48 · Quote Reply

What's the K

Gonna assume kelvin

Think C but what if zero was actualy zero

4
Contramuffin lemmy.world Contramuffin@lemmy.world
Joined: 2023-06-25
#49 · (edited) Quote Reply

Let's assume the dimensions of the copper block are 40mm40mm160mm (I'm not taking the heat spreader into account here) That results in a volume of 256000mm3, or 256cm3 Copper (at 20C) has a density of 8.935 g/cm3, so that's roughly 2.28736kg of copper Copper has a specific heat capacity of 384.603 J/(kg K) Using E=cm∆t, we can figure out that it would take ≈ 70378J of energy to heat the copper ...

Hmm, I think at minimum calculus will need to be involved here. Because we can't just assume that the heat is spread evenly in the copper - it'll likely be hotter at the bottom, leading to thermal throttling earlier than expected. On the other hand, there's going to be heat dissipation into the air, which will help cool the block somewhat

Edit: made a program to model heat transfer and heat loss. It seems to only affect final time by a handful of seconds. So actual time in real life is probably somewhere in the ballpark of 10 minutes

27
not_IO lemmy.blahaj.zone not_IO@lemmy.blahaj.zone
Joined: 2024-12-06
#50 · Quote Reply

I remember when that space was less.... Spacious.

yeah that looks so weird right?

11
Courtney (she/her/they) lemmy.blahaj.zone EggInDisguise@lemmy.blahaj.zone
Joined: 2026-04-10
#51 · Quote Reply

yeah that looks so weird right?

Toblerone has famously been shrinkflating their product for some time.

I remember seeing a comparison post many years ago of a modern one vs one that had been bought years ago and rediscovered in a closet or drawer or something. The older ones had thicker spikes.

12
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