AMD Ryzen 9 7950X with slab of 2.2lb Copper Bar

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#6125233
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Bravo for the Effort! 😀
#6125484
https://forums.guru3d.com/data/avatars/m/262/262613.jpg
That's actually amazing, it shows how awful passive cooling is if it takes all that to cool a 65w cpu. Even at idle, my radiator water heats up quite a bit eventually if i leave all the fans off but the pump running. I was thinking of using more rads on my next build eventually so that i can keep fans turned off while idle.
#6125505
https://forums.guru3d.com/data/avatars/m/56/56004.jpg
Nothing surprising, heck, my 5900X ('0' stepping, so I think it runs a tad hotter than later stepping) bounces all over the place between 50C+ to 63C+, constantly all over even when the most I'm doing is surfing the net and typing this message. Odd thing though, under load when I game, like DSR, it might go as high as, say, ~80C and stays around there, I've yet to see 90C with any game I've played, this is with a Tt Big Water 3.0 360mm AIO.
#6125537
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LimitbreakOr:

That's actually amazing, it shows how awful passive cooling is if it takes all that to cool a 65w cpu. Even at idle, my radiator water heats up quite a bit eventually if i leave all the fans off but the pump running. I was thinking of using more rads on my next build eventually so that i can keep fans turned off while idle.
For cooling, surface area is more important than volume. Sure, you can sink a lot of heat into a big chunk of copper like that, but if it can't dissipate fast enough, the cooled component is going to suffer. I wager this setup is more for "look what I can do" internet points than for actual passive cooling performance.
#6125655
https://forums.guru3d.com/data/avatars/m/271/271560.jpg
LimitbreakOr:

That's actually amazing, it shows how awful passive cooling is if it takes all that to cool a 65w cpu. Even at idle, my radiator water heats up quite a bit eventually if i leave all the fans off but the pump running. I was thinking of using more rads on my next build eventually so that i can keep fans turned off while idle.
i bought a Chinese mini-fridge and put it in my loop as a chiller...also chills my Red Bull and Beer i use a modded Brita shelf sized water dispenser inside as a reservoir and set the fridge to 5c
#6125665
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Takes two weeks to get back to idle temps 😛
#6125692
https://forums.guru3d.com/data/avatars/m/268/268248.jpg
Most likely a slab of copper with on top of it a slab of alluminium would have been more effective the heat transfer of copper + high heat capacity and not too shabby transfer for the alluminium!
#6125698
https://forums.guru3d.com/data/avatars/m/223/223581.jpg
The copper IS connected to the case (clear in pictures) that is probably aluminium... So should be pretty effective! 🙂
#6125699
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Venix:

Most likely a slab of copper with on top of it a slab of alluminium would have been more effective the heat transfer of copper + high heat capacity and not too shabby transfer for the alluminium!
Yeah, it looks like the copper is sufficient at carrying away the heat but not at spreading it out around the aluminum case. A larger surface area attaching to the case would have probably made a bigger difference to disperse the heat transfer a little better.
#6125717
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tunejunky:

i bought a Chinese mini-fridge and put it in my loop as a chiller...also chills my Red Bull and Beer i use a modded Brita shelf sized water dispenser inside as a reservoir and set the fridge to 5c
So tube into and out of the water bottle, I'm assuming a powerfull pump like a D5? How do you run the tubing into and out of the mini fridge, did you drill holes?
#6125769
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pegasus1:

So tube into and out of the water bottle, I'm assuming a powerfull pump like a D5? How do you run the tubing into and out of the mini fridge, did you drill holes?
yes, D5 pump. drilled holes in side of fridge, insulated the gap i created, laid old hard tube w/ g 1/4 extenders in fridge wall with old hdd enclosures working as strain relief/ reinforcement for flimsy fridge walls i took the Brita 2 gallon water dispenser and made in/outs the same way, sealed with epoxy. i keep the spigot on the brita as a drain and qr's outside of pc and fridge.
#6125778
https://forums.guru3d.com/data/avatars/m/224/224952.jpg
LimitbreakOr:

That's actually amazing, it shows how awful passive cooling is if it takes all that to cool a 65w cpu. Even at idle, my radiator water heats up quite a bit eventually if i leave all the fans off but the pump running. I was thinking of using more rads on my next build eventually so that i can keep fans turned off while idle.
Fit the rad externally, laid flat but raised a good distance and fit a funnel on it made of card to test with. A smooth insulating material will work best to keep turbulence down and the air hot. PTFE would be great! The taller the funnel the faster air will flow, to a point. No leaks allowed. It will be silent without a fan and might work well under load too. The hotter, the faster air will flow. Leave the fan out of it to get the best natural air flow and see how well it can perform. Also, a curved in funnel will give an added venturi effect, speeding up air flow.