Full Immersive Cooling: the future, now..

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chriscambridge
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Full Immersive Cooling: the future, now..

Post by chriscambridge » Mon Apr 01, 2019 2:31 pm

Incase anyone wants to cool 16x RTX 2080's and 2x CPUs in a 2U space (half the width of a desktop)..

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https://www.youtube.com/watch?v=lvTp6mfhH3U

Or, cool 6x RTX 2080 Ti and a single CPU on a normal mobo in a 4U space..

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UBT - Timbo
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Re: Full Immersive Cooling: the future, now..

Post by UBT - Timbo » Mon Apr 01, 2019 3:16 pm

Hi Chris

Interesting post - as I've just seen this post which is along similar lines.

https://www.theregister.co.uk/2019/03/2 ... n_cooling/

In the latter, they mention that the hardware is immersed in a dielectric liquid....hopefully, they get motherboard and peripheral manufacturers to agree to this...esp if a claim under guarantee is made and the maker doesn't honour the warranty, due to all the gunk on the faulty unit !!

regards
Tim

chriscambridge
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Re: Full Immersive Cooling: the future, now..

Post by chriscambridge » Mon Apr 01, 2019 3:31 pm

There is no gunk, the liquid evapes in minutes and leaves no residue.

Also the systems above are proof-of-concept by Gigabyte to show that their pre built servers, and components, all work fine with these immersive systems.
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Woodles
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Re: Full Immersive Cooling: the future, now..

Post by Woodles » Mon Apr 01, 2019 4:07 pm

Pfft, beginners, why bother with a few gallons of mineral oil when there's a whole ocean available - https://news.microsoft.com/features/und ... for-years/

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Not quite the same though, more water cooling on a grand scale. Still interesting though.

Mark

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Re: Full Immersive Cooling: the future, now..

Post by chriscambridge » Mon Apr 01, 2019 4:44 pm

https://www.wired.co.uk/article/microso ... ect-natick

This is a more descriptive photo of Project Natick:

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The Natick team also explained the pod's cooling system and how it uses ocean water to cool liquids inside the system.

"The interior of the data-center pod consists of standard computer racks with attached heat exchangers, which transfer the heat from the air to some liquid, likely ordinary water," they said.

"That liquid is then pumped to heat exchangers on the outside of the pod, which in turn transfer the heat to the surrounding ocean. The cooled transfer liquid then returns to the internal heat exchangers to repeat the cycle."
The thing with immersive cooling is its actually a very simple concept. From what I read the main reason its not mainstream atm is due to patents and hence the high cost of 'pre-built solutions'.

However no patent can stop the knowledge being shared, and hence systems being built and used. It offers: the lowest PUE in the World (eg Allied control ASIC system), substantial savings from cooling costs, Highest density of hardware, and pretty much will work with all (non-moving) components and (server) chassis.

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The only bit missing from this graphic which is how the heated water gets cooled; some use radiators/fans, some use cooling/evaporative towers. Some (a French company) even pump the heated water into home radiator systems and use/cool it that way.
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Re: Full Immersive Cooling: the future, now..

Post by UBT - Timbo » Mon Apr 01, 2019 7:08 pm

Woodles wrote:
Mon Apr 01, 2019 4:07 pm
Pfft, beginners, why bother with a few gallons of mineral oil when there's a whole ocean available - https://news.microsoft.com/features/und ... for-years/

Not quite the same though, more water cooling on a grand scale. Still interesting though.

Mark
Hi Mark

I wonder what will happen if there's a hard drive failure...or maybe a PSU fails...or a mobo catches fire?

Of course there will be some redundancy built in, and maybe even some Halon gas extinguishers - but it'll be pretty expensive calling out an engineer to fix something !!

regards
Tim

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Re: Full Immersive Cooling: the future, now..

Post by Woodles » Tue Sep 15, 2020 8:47 am

UBT - Timbo wrote:
Mon Apr 01, 2019 7:08 pm
Hi Mark

I wonder what will happen if there's a hard drive failure...or maybe a PSU fails...or a mobo catches fire?

Of course there will be some redundancy built in, and maybe even some Halon gas extinguishers - but it'll be pretty expensive calling out an engineer to fix something !!

regards
Tim
https://www.bbc.co.uk/news/technology-54146718
Only 8 out of 855 servers failed - "We think it has to do with ... people not banging things around" :D

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Re: Full Immersive Cooling: the future, now..

Post by UBT - Timbo » Tue Sep 15, 2020 7:38 pm

Woodles wrote:
Tue Sep 15, 2020 8:47 am

https://www.bbc.co.uk/news/technology-54146718
Only 8 out of 855 servers failed - "We think it has to do with ... people not banging things around" :D
Hi Mark

I read that they used a (gaseous) Nitrogen atmosphere inside the Natick, rather than air/Oxygen and obviously this would "put out" any electrical fire inside the container, if a major fault occurred. :-) (As obvs "fire" needs Oxygen to sustain itself).

regards
Tim

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