Interesting. I wonder if it's audible when running? Maybe the piezos operate in a range higher than human hearing, or it's just not very loud in the first place?
High frequency also means it's easy to filter out by sheer mass of the system
A startup’s cooling chip may surge processor power
41–50 of 58 posts
Re: A startup’s cooling chip may surge processor power
#42Earlier quoted context omitted.
If you are interested in cooling, I suggest that you replace your thermal paste. In my research I have found that the thermal paste is, paradoxically, the least thermally conducting part of a PC heat pipeline. So, use as little of it as possible, to avoid adding thickness. Or use one made of a metal alloy: https://www.youtube.com/watch?v=hdTsra-uLBI
If this is true, why not have coolers built into the CPU? Like a block of metal attached? Is it a small improvement gained? Or manufacturing nightmare?
This one does[1]. It have a bunch of pistons on springs touching each chiplet, all in mineral oil. Price bit out of range for typical desktop user tho
Re: A startup’s cooling chip may surge processor power
#43Suspicously absent in the diagram.. dust and particles.. i guess its a closed inner air circuit transporting the heat towards some large scale shedding surface. Also, is this something similar to the https://en.wikipedia.org/wiki/Venturi_effect ?
I went through their marketing materials and according to them, the flow is strong enough to allow putting a filter there.
The air is full with fats that will penetrate any filter, and long term build up there... With the extra heat contributing to the issue. Personally I don't think it can work in an open loop system.
Re: A startup’s cooling chip may surge processor power
#44I'm just really glad its not some Peltier junction solution. It looks like it could be a boon for low power devices that throttle easily such as tablets, maybe even phones and ultra thing laptops. Might even make cooling for non-cpu chips easier.
I feel like these are not as common/popular as they were back in the day. Now it's all water cooling with those all-in-one setups. I always thought the Peltier coolers were cool (pun not originally intended, but now it is).
Sadly they’re extremely inefficient when compared to radiators and fans, whether directly on the heat source or across a water loop.
Re: A startup’s cooling chip may surge processor power
#45I'm just really glad its not some Peltier junction solution. It looks like it could be a boon for low power devices that throttle easily such as tablets, maybe even phones and ultra thing laptops. Might even make cooling for non-cpu chips easier.
I feel like these are not as common/popular as they were back in the day. Now it's all water cooling with those all-in-one setups. I always thought the Peltier coolers were cool (pun not originally intended, but now it is).
The real issue with Peltier junctions is that unless you shed the heat away from the "hot" side very effectively, the "cold" side will heat up even faster. That makes them kind of a non-starter.
Re: A startup’s cooling chip may surge processor power
#46That’s one part of the problem.. Why not make cooling / heat dissipation part of the cpu? You can have horizontal or vertical planes to guide the heat to the top or sides. chips are not 2D anymore, and this might allow for a slightly cooler core/inside temperature
No way this can make economical sense. Every bit of wafer surface has much more value for transistors than improving thermal performance. The current state with a heat conductive plate atop of the silicon is certainly the best tradeoff, since thermal dissipation is the second most significant way to improve ship performance after actual transistors layout and conductivity.
Without thermal performance, your transistors will have to stay mostly powered down ("dark silicon"). At some point, the tradeoff will go the other way.
Re: A startup’s cooling chip may surge processor power
#47We have passively cooled ultracompact laptops and tables on the market with sustained power dissipation of 10-15W. The AirJet Pro dissipates 10.5W and uses a significant amount of power itself. These things are also HUGE. Unless one can improve the dissipation by a large factor I don't see much practical use for this kind of product.
Re: A startup’s cooling chip may surge processor power
#48We have passively cooled ultracompact laptops and tables on the market with sustained power dissipation of 10-15W. The AirJet Pro dissipates 10.5W and uses a significant amount of power itself. These things are also HUGE. Unless one can improve the dissipation by a large factor I don't see much practical use for this kind of product.
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Re: A startup’s cooling chip may surge processor power
#49That’s one part of the problem.. Why not make cooling / heat dissipation part of the cpu? You can have horizontal or vertical planes to guide the heat to the top or sides. chips are not 2D anymore, and this might allow for a slightly cooler core/inside temperature
No way this can make economical sense. Every bit of wafer surface has much more value for transistors than improving thermal performance. The current state with a heat conductive plate atop of the silicon is certainly the best tradeoff, since thermal dissipation is the second most significant way to improve ship performance after actual transistors layout and conductivity.
Sure, for now. But it might create more stable ICs, or might even break some limitations due to heat runining up no the center of the CPU.. if a SoC can suddenly be x times as thick / have more layers, you can have shorter paths to different components. Which is faster again. The area of a wafer would remain the same, but I’m not sure about the economics of silicon wafers (thickness vs area). Less area mean less surface area for imperfections.
Re: A startup’s cooling chip may surge processor power
#50Earlier quoted context omitted.
I went through their marketing materials and according to them, the flow is strong enough to allow putting a filter there.
The air is full with fats that will penetrate any filter, and long term build up there... With the extra heat contributing to the issue. Personally I don't think it can work in an open loop system.
Maybe it will come with a sticker saying "spray inlets with alcohol periodically".