24 GPU mining setup reviewed this weekend on livestream

[alumar]

https://www.youtube.com/watch?v=3wS-KskMVjU

If you have a chance, join the livestream this Saturday around 7pm CST

Covering Q&A and showing the results of the 4 builds

[alumar]

For the folks that dont watch our video's this is what we are talking about

[drrobert]

about temp of gpus when you close rig  

[Vaccinus]

why all this trend about 4u rack for gpu? you save more space upward but place more rig downward, the result should be the same, but the cooling will be worse with this 4u system,the cards are too close imho

[un4given]

why all this trend about 4u rack for gpu? you save more space upward but place more rig downward, the result should be the same, but the cooling will be worse with this 4u system,the cards are too close imho

don't say anything before you try it yourself.  i also used this kind of layout to rebuild some of my rigs (check my posts in the RIG Porn) and the temps are even better as previously in the open build.

though my rigs are standing and not lying. the fans are blowing the GPU's through, so there should be 1 cm space between them and this should be enough, believe me.

Previously my 6x RX 470 4GB had 75C @ 50-60% fan now they are at 52-60 degrees with 20-30% fan speed...

[LegendaryMembership]

https://www.youtube.com/watch?v=3wS-KskMVjU

If you have a chance, join the livestream this Saturday around 7pm CST

Covering Q&A and showing the results of the 4 builds

nice video, i will instal 30vga in next day i need this

[bathrobehero]

Those cards are way too close for my taste.

Also, are those 6 x 580's on 1000W and 1200W PSU's? Unless they're TDP limited, they will pull 200 watt each which is a lot.

[JaredKaragen]

the 4u cases make the miners easily stackable... cable config in one place... easier to route airflow and occupy more vertical footage efficiently.

[Vaccinus]

why all this trend about 4u rack for gpu? you save more space upward but place more rig downward, the result should be the same, but the cooling will be worse with this 4u system,the cards are too close imho

don't say anything before you try it yourself.   i also used this kind of layout to rebuild some of my rigs (check my posts in the RIG Porn) and the temps are even better as previously in the open build.

though my rigs are standing and not lying. the fans are blowing the GPU's through, so there should be 1 cm space between them and this should be enough, believe me.

Previously my 6x RX 470 4GB had 75C @ 50-60% fan now they are at 52-60 degrees with 20-30% fan speed...

of course you have lower temp now you are comparing 6 gpu against 5 gpu that i see in the photo, do it with 6 versus 6 i'm sure it would be worse or at the best the same, it depend how you are setting the frontal fan in the open rig versus this u4 rack

[gwestcot]

I can 100% confirm that the 4U cases mean that temperatures are lower and fans are more efficient. Although the cards are close together, you are also to concentrate your airflow. My earlier rigs which are the stereotypical 6 gpu open air rigs run at 65-72 degrees but my 8 gpu rigs in 4U rack mountable cases run at 55 degrees or so. The rack mountable cases also allow for the ability to control airflow in a larger mining farm. This means you can utilize hot aisle cold aisle cooling scheme which will greatly increase cooling efficiency if you use a CRAC unit as opposed to the fans that most people use.

[Vaccinus]

I can 100% confirm that the 4U cases mean that temperatures are lower and fans are more efficient. Although the cards are close together, you are also to concentrate your airflow. My earlier rigs which are the stereotypical 6 gpu open air rigs run at 65-72 degrees but my 8 gpu rigs in 4U rack mountable cases run at 55 degrees or so. The rack mountable cases also allow for the ability to control airflow in a larger mining farm. This means you can utilize hot aisle cold aisle cooling scheme which will greatly increase cooling efficiency if you use a CRAC unit as opposed to the fans that most people use.

the only difference that i see is that the hot air from the cpu don't go toward the gpu which is the case for the open air, for the remaining stuff the gpu setup with frontal fan is identical in both cases, hence i can't think why it should be different

[Mister305]

Where is a reliable place to get those 4u cases?

[bathrobehero]

I can 100% confirm that the 4U cases mean that temperatures are lower and fans are more efficient. Although the cards are close together, you are also to concentrate your airflow. My earlier rigs which are the stereotypical 6 gpu open air rigs run at 65-72 degrees but my 8 gpu rigs in 4U rack mountable cases run at 55 degrees or so. The rack mountable cases also allow for the ability to control airflow in a larger mining farm. This means you can utilize hot aisle cold aisle cooling scheme which will greatly increase cooling efficiency if you use a CRAC unit as opposed to the fans that most people use.

Interesting.

My cards are in an open frame rigs with ~2" or ~5 cm between cards with one massive fan blowing at them from a few meters.

Dust is an issue here so I'd like to move to filtered close cases like these racks but I have no experience with them and I'm skeptical about the temps being lower, or even just the same.

[jwarren81]

This is basic data center / server design used in EVERY data center in existence.  There's a reason it's done this way with literally millions of servers around the world.  Adding GPUs doesn't change the way air flow and cooling works and this setup is very efficient because you can concentrate and control airflow.  Combined with a hot/cold aisle and you really can't get more efficient than this design.  Open air will ALWAYS be less efficient because air cannot be controlled so it only passes over the hardware a single time before being exhausted.

With that said, I use open air frames for my rigs because it is sufficient for my needs.  If I'm able to move to a dedicated space, I would absolutely use racks with hot/cold aisles in order to maximize efficiency of cooling.  A lot of money can be saved with this over the long term, but as usual, initial cost can be higher.

[jwarren81]

Here ya go:

https://www.miningrigs.net/?product_cat=server-cases

Where is a reliable place to get those 4u cases?

[Elsada]

https://www.youtube.com/watch?v=3wS-KskMVjU

If you have a chance, join the livestream this Saturday around 7pm CST

Covering Q&A and showing the results of the 4 builds

It's very nice . I really like this rig.
Many people are investing much money to this rig and it seems all GPU cards are very scarce in the market.

[maleemk]

Very tempting indeed. I was never in the GPU mining, but after watching your video and this setup, I will try my hands on GPU mining when Vega gpu will be released. Thumbs up.

[bathrobehero]

Here ya go:

https://www.miningrigs.net/?product_cat=server-cases

Where is a reliable place to get those 4u cases?

In the EU, I'd stick with something like this: https://bitcointalk.org/index.php?topic=1921659 or even with a locally created solution.

Comments like these and the price difference really leaves a bad taste in my mouth from the creator of those cases you linked:

For those interested in where this guys is ripping his design off of, check out:

Yeah, they call this competition.. I saw somewhere a guy making these out of wood for $50.

Supply/demand drives the market. Monopolies are mostly beneficial to the business owner.

Actually it's called theft of intellectual property.  We've already shut down two groups in the US that tried to copy our design.  Luckily for this guy he's outside the US and thus difficult to go after legally.

This is basic data center / server design used in EVERY data center in existence.  There's a reason it's done this way with literally millions of servers around the world.  Adding GPUs doesn't change the way air flow and cooling works and this setup is very efficient because you can concentrate and control airflow.  Combined with a hot/cold aisle and you really can't get more efficient than this design.  Open air will ALWAYS be less efficient because air cannot be controlled so it only passes over the hardware a single time before being exhausted.

With that said, I use open air frames for my rigs because it is sufficient for my needs.  If I'm able to move to a dedicated space, I would absolutely use racks with hot/cold aisles in order to maximize efficiency of cooling.  A lot of money can be saved with this over the long term, but as usual, initial cost can be higher.

I have plenty of space which is why I'm not convinced that I should swap to 4U rack cases and looking for some figures regarding card temps.

[jwarren81]

Yeah, I don't support shutting down competition unless they actually are stealing intellectual property that is backed by actual law and evidence.  You don't get to steal other peoples work and pass it off as your own, but I don't know enough about that situation to really comment one way or the other. Competition is what makes market better and I will always lean towards more competition than not.  Thanks for making me aware of that so I can take it into account.

If you have a lot of open space then open air rigs definately make more sense.  Racks and enclosures with tightly controlled air flow were specifically designed for very high density and packing as much per square foot in a data center as possible.  It really has to be decided on a case by case basis as to its cost effectiveness.

[gwestcot]

Here ya go:

https://www.miningrigs.net/?product_cat=server-cases

Where is a reliable place to get those 4u cases?

In the EU, I'd stick with something like this: https://bitcointalk.org/index.php?topic=1921659 or even with a locally created solution.

Comments like these and the price difference really leaves a bad taste in my mouth from the creator of those cases you linked:

For those interested in where this guys is ripping his design off of, check out:

Yeah, they call this competition.. I saw somewhere a guy making these out of wood for $50.

Supply/demand drives the market. Monopolies are mostly beneficial to the business owner.

Actually it's called theft of intellectual property.  We've already shut down two groups in the US that tried to copy our design.  Luckily for this guy he's outside the US and thus difficult to go after legally.

This is basic data center / server design used in EVERY data center in existence.  There's a reason it's done this way with literally millions of servers around the world.  Adding GPUs doesn't change the way air flow and cooling works and this setup is very efficient because you can concentrate and control airflow.  Combined with a hot/cold aisle and you really can't get more efficient than this design.  Open air will ALWAYS be less efficient because air cannot be controlled so it only passes over the hardware a single time before being exhausted.

With that said, I use open air frames for my rigs because it is sufficient for my needs.  If I'm able to move to a dedicated space, I would absolutely use racks with hot/cold aisles in order to maximize efficiency of cooling.  A lot of money can be saved with this over the long term, but as usual, initial cost can be higher.

I have plenty of space which is why I'm not convinced that I should swap to 4U rack cases and looking for some figures regarding card temps.

I have some of bitworks 8 gpu 230 MH/s rigs and for sure they run in the 50's and 60's with not a great cooling situation right now. I have a space air conditioner for that room on top of the comfort air conditioner but with the amount of rigs I have and how hot it is in Florida it still runs nice. In comparison my 6 gpu open air rigs run at about 72 while getting 160 Mh/s in eth and about 4800 Mh/s in decred while dual mining. I will take the 4U rack mountable ones over open air rigs. It is literally proven air flow practices that have been employed by data centers for decades so there is no difference with GPU's. People don't do it because there is extra cost but if you are doing a larger deployment it is worth it to maximize floor space and to have the most efficient cooling system with cold aisle hot aisle alignment. If you are simply mining out of your home or you are running a small operation then it may or may not be worth it to you. I know that when I move to a warehouse I am either purchasing from bitworks or creating my own rack mountable rigs in the case of making some more nvidia rigs with the 1070's.