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Thermal Paste under CPU in socket: Linus: "...cinebench...62 degrees on the CPU, she's flying..."

In this LTT video Linus puts thermal paste INTO the CPU socket :

Linus: "...cinebench...62 degrees on the CPU, she's flying..."

I don't know if Linus realised it, but he may have stumbled onto something worth more testing/video..???
Perhaps even a new paradigm in CPU cooling..!?
LTT seldom read the comments made of their videos, so posting this here too...

Just about every component on the MB (VRMs, Mosfets. etc) are designed to dissipate heat, through the solder joint, INTO the MB. You can look that up.
There's a lot of copper in the MB and a lot of research on increasing the thermal conductivity of the resin used.
So there's no reason not to think of the MB as a big flat heatsink. One where you can double cooling capacity simply by blowing air on/over both sides, rather than just one side.

There's info on the net about improvements people found by cooling the back of the MB and there were even some computer cases that took fans at the back.

Plz do some before after temperature tests with appropriate (non conductive, non capacitive, High TC and thin) thermal compound in a fully filled socket. (seeping out between MB and socket)
Test with:

  • A large fan blowing on one side of the MB and then another on the back. (both sides)
  • A properly fitting, fitted, engineered HSF on the back of the MB CPU area.
  • CPU and VRM etc temperatures.
  • Thermal images. etc.

I'd love to be able to laugh at der8auer for ignoring this suggestion from me.

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35 minutes ago, Logic11 said:

So there's no reason not to think of the MB as a big flat heatsink.

there is one: its not and its not meant to be a "heatsink"... you need some kind of metal like aluminum, copper, etc in large quantities to have a "heatsink"...

 

the problem is if the mobo heats up too much many components would stop working properly... they're often designed for like 50C max... think RAM for example... 

 

additionally putting thermal paste into a socket would inevitably lead to the cpu to lose electrical contact and as such the pc would stop working. 

 

idc what a youtube video says, this is just basic common sense... im not saying it "cant" work btw, im saying in "most cases" it simply wouldn't work, leading to overheating of components and losing electric conductivity at crucial points  - and that is why nobody designs a mobo as a heatsink usually,  its not needed,  and cost prohibitive  - afaik there are some "water cooled" mobos and they work, but there's no real benefit over traditional motherboards, except being more expensive (which only benefits the manufacturer lol)

 

 

The direction tells you... the direction

-Scott Manley, 2021

 

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42 minutes ago, Logic11 said:

VRM

VRM heatsinks are above the motherboard, motherboard either lacks heatsinks above VRMs or has them, just like CPU heatsink, all components on motherboard that would overheat without cooling get one, or cheap out and suffer in performance as the components slow down to not overheat

 

45 minutes ago, Logic11 said:

There's info on the net about improvements people found by cooling the back of the MB and there were even some computer cases that took fans at the back.

If it's because the motherboard lacked proper heatsinks to cool it's components, of course blowing air would help with performance, since moving air can pick up more heat and carry it away

 

this is why, when cheap MB doesn't have VRM heatsink, and it's VRM limited due to thermals, the thermals get better when you have downdraft cooler that blows on the VRMs, or when you have some kind of fan that's blowing air on/across the VRMs

 

Note: Users receive notifications after Mentions & Quotes. 

Feel free: To ask any question, no matter what question it is, I will try to answer. I know a lot about PCs but not everything.

current PC:

Ryzen 5 5600 |16GB DDR4 3200Mhz | B450 | GTX 1080 ti [further details on my profile]

PCs I used before:

  1. Pentium G4500 | 4GB/8GB DDR4 2133Mhz | H110 | GTX 1050
  2. Ryzen 3 1200 3,5Ghz / OC:4Ghz | 8GB DDR4 2133Mhz / 16GB 3200Mhz | B450 | GTX 1050
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About the only "practical" reason I can think of for slathering thermal paste all over everything like that would be to protect against condensation when doing exotic subzero cooling for an extreme overclocking project. (Even then, plain old petroleum jelly will be far less expensive.)

I sold my soul for ProSupport.

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Basically you (or the video you're referring to) has found a solution to a "problem" that doesn't exist... pc cooling is long solved, parts are usually designed with low power usage in mind... literally some fans and aluminum fins is all you need cooling even high performance pcs 

The direction tells you... the direction

-Scott Manley, 2021

 

Softwares used:

Corsair Link (Anime Edition) 

MSI Afterburner 

OpenRGB

Lively Wallpaper 

OBS Studio

Shutter Encoder

Avidemux

FSResizer

Audacity 

VLC

WMP

GIMP

HWiNFO64

Paint

3D Paint

GitHub Desktop 

Superposition 

Prime95

Aida64

GPUZ

CPUZ

Generic Logviewer

 

 

 

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38 minutes ago, Mark Kaine said:

Basically you (or the video you're referring to) has found a solution to a "problem" that doesn't exist... pc cooling is long solved, parts are usually designed with low power usage in mind... literally some fans and aluminum fins is all you need cooling even high performance pcs 

if it was worth an investment, notebooks would have been doing it, but they aren't

Note: Users receive notifications after Mentions & Quotes. 

Feel free: To ask any question, no matter what question it is, I will try to answer. I know a lot about PCs but not everything.

current PC:

Ryzen 5 5600 |16GB DDR4 3200Mhz | B450 | GTX 1080 ti [further details on my profile]

PCs I used before:

  1. Pentium G4500 | 4GB/8GB DDR4 2133Mhz | H110 | GTX 1050
  2. Ryzen 3 1200 3,5Ghz / OC:4Ghz | 8GB DDR4 2133Mhz / 16GB 3200Mhz | B450 | GTX 1050
  3. Ryzen 3 1200 3,5Ghz | 16GB 3200Mhz | B450 | GTX 1080 ti
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well this gave me a good laugh. while there COULD be a gain from this ( but I doubt it) the first problem is:

 

a while back I tested if too much thermal paste can make temps higher 

image.png.45c3dd145ffa970ed0f2322260716f49.png

And cleaning up just this much paste was a NIGHTMARE.  it got every where lol ... sooo  0/10  recommended 

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