Mining rig cases with separate hot and cold air flow - page 2.

Commie

full member

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Quote from: arielbit on March 14, 2021, 01:46:25 PM

then that case will not protect those rigs from dust.

it is not just cards that needs cooling, a specific area in the (motherboard, PSU, memory) where temp rises can cause discrete electronic components failure, it can cause issues.

that case may look like it can push a lot of air, but can the PSU breath? (like putting your head out of the car window when the car is running fast, air going inside the nose is harder), server PSU designs are rack mountable friendly.

but too much hassle hehe....rack and zip ties are just around the corner waiting for you Wink

Take a look at the pic below, another manufacturer. Square openings (intake) are covered with G-3 filtration material, if needed. So cool dust free air flows through MB and PSU first them being pushed through card radiators that are flush mounted to plates and all gaps are sealed. This particular one isn't that great IMHO as all 4 cards sit on one plate (serviceability), but other manufacturers use separate plates for each card.

https://forum.coolbox.pro/images/Landing/42.jpg

dedizonesv2

jr. member

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Quote from: Commie on March 14, 2021, 10:41:03 AM

I've searched the forum but there's almost zero information about those. Does anyone have experience using ColdCase, Donnager, CoolBox or analogs? I live in tropics so keeping my cards both cool and dust/insects free is my target. With open rigs I have to weekly remove spider nets, dust, sand etc.

I have hydroponique chamber and no probleme spider and sand

https://www.ebay.fr/b/Chambres-de-culture-et-tentes-pour-culture-hydroponique/178993/bn_16574859

arielbit

legendary

Activity: 3444

Merit: 1061

then that case will not protect those rigs from dust.

it is not just cards that needs cooling, a specific area in the (motherboard, PSU, memory) where temp rises can cause discrete electronic components failure, it can cause issues.

that case may look like it can push a lot of air, but can the PSU breath? (like putting your head out of the car window when the car is running fast, air going inside the nose is harder), server PSU designs are rack mountable friendly.

but too much hassle hehe....rack and zip ties are just around the corner waiting for you Wink

Commie

full member

Activity: 621

Merit: 108

Quote from: arielbit on March 14, 2021, 01:06:50 PM

outdoors?

2nd fl and 3rd fl? 10-15 meters above ground isn't dust proof enough.. i don't know if you are running them at the 10th floor or higher but it all depends on the environment where we live, it is up to you to discover that.

you can try dust filters but it will affect airflow.

Ground level LOL, i run them this way for years. Filters etc were tried in various setups, always resulting in temps running much higher than I want. Anyway, we're drifting off the topic. I clearly see advantages of separating hot and cold air streams inside the box (or room, or building, if you wish Wink

). There is a number of videos on similar cases, it got me interested and I started searching for more information. One more thing, as far as I understood it's recommended to dismount card fans prior to installation to improve airflow through radiators. Sounds good, broken fans are such a common thing.

arielbit

legendary

Activity: 3444

Merit: 1061

outdoors?

2nd fl and 3rd fl? 10-15 meters above ground isn't dust proof enough.. i don't know if you are running them at the 10th floor or higher but it all depends on the environment where we live, it is up to you to discover that.

you can try dust filters but it will affect airflow.

Commie

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Quote from: arielbit on March 14, 2021, 12:43:59 PM

Let's say it can fit 96 cards, the whole lot will still depend greatly on the mining room temperature..can fit 96 cards bit can run at good temps at how many cards? Wink

No matter how fast those fans are and the air can pass through that case, if the room heats up...first, humans cannot operate long enough inside the room and second, electronics fail.

Now....the cleaning part and the troubleshooting part? Hehe

Just cool the room and make everything accessible by hand and easily observed by eyes.

From what I saw serviceability is quite okay. My rigs are kept outdoors so the room temp. isn't an issue, but I've seen them running in a 35C room at 51-55C per card (1080Ti). Regardless of air volume I direct at my open rigs I never get them run lower than 62-63C, usually higher.

arielbit

legendary

Activity: 3444

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Let's say it can fit 96 cards, the whole lot will still depend greatly on the mining room temperature..can fit 96 cards bit can run at good temps at how many cards? Wink

No matter how fast those fans are and the air can pass through that case, if the room heats up...first, humans cannot operate long enough inside the room and second, electronics fail.

Now....the cleaning part and the troubleshooting part? Hehe

Just cool the room and make everything accessible by hand and easily observed by eyes.

anyway if you want your rigs to be as dust free as possible you're going for an air conditioned room, but if you are on intake and exhaust fans no case can protect your rigs from dust.

Commie

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Quote from: arielbit on March 14, 2021, 11:58:34 AM

A rack and zip ties is better,.

The whole rack is the case, depends on how many layers is your rack will determine the number of rigs will fit.

And to think bigger, the whole mining room is the computer case, you cool the room the more rigs you can run.

Maybe you're fine with zip ties but being an engineer I like to organize things the best way I can Wink

As for the mining room yes you're right and most efficient cooling benefits you directly, doesn't it. Hence the reason for cold and hot air zones, more efficient cooling. Plus, extra space is also an issue. What if I told you that rig in the picture holds 96 cards, takes less space and runs 5-10 degrees cooler than our classic rigs?
PS no idea how to resize it without html tags, sorry

arielbit

legendary

Activity: 3444

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A rack and zip ties is better,.

The whole rack is the case, depends on how many layers is your rack will determine the number of rigs will fit.

And to think bigger, the whole mining room is the computer case, you cool the room the more rigs you can run.

Commie

full member

Activity: 621

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Quote from: miner29 on March 14, 2021, 11:21:10 AM

just build a plywood box put rig in it.

take box fan 20”x20” is gpod for a rig...if bigger box (say 4’ x 4’ x 4’) use a barrell fan.

Make a hole to match the fan on top and pull air out. Put openings around lower side and use cheap ac filter or cloth to keep stuff out and fan will pull cool air in the lower openings across rig and up and out of box....

Even in VERY hot (works in Thailand heat) this works. 20”x20” fan around $20...barrells run $100 - $200...but the bogger box can do 50-100 gpus....

Vent top fan exhuast outside or out roof.....

I guess you completely missed the meaning of my question. I'm particularly interested in users experiences and thoughts on separate air stream cases, ie the ones with hot and cold air "corridors", concept similar to one being used in datacenters. Box with two fans is too primitive thing to be discussed here Wink

miner29

full member

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just build a plywood box put rig in it.

take box fan 20”x20” is gpod for a rig...if bigger box (say 4’ x 4’ x 4’) use a barrell fan.

Make a hole to match the fan on top and pull air out. Put openings around lower side and use cheap ac filter or cloth to keep stuff out and fan will pull cool air in the lower openings across rig and up and out of box....

Even in VERY hot (works in Thailand heat) this works. 20”x20” fan around $20...barrells run $100 - $200...but the bogger box can do 50-100 gpus....

Vent top fan exhuast outside or out roof.....

Commie

full member

Activity: 621

Merit: 108

I've searched the forum but there's almost zero information about those. Does anyone have experience using ColdCase, Donnager, CoolBox or analogs? I live in tropics so keeping my cards both cool and dust/insects free is my target. With open rigs I have to weekly remove spider nets, dust, sand etc.

Topic: Mining rig cases with separate hot and cold air flow - page 2. (Read 325 times)