Topic: 20 GPU - opan air case - no risers - 5 motherboards (Read 2245 times)

Would love to see it.

update: buying parts to show you this godzilla mining shelf - watch this space

no  if you use msi rx 470 4gb or 8gb red led gaming cards.  it is not very loud.  no where near the sound of an ant miner s9 quieter then an avalon 721

if you use atx 750 watt evga psus  you can do 4 cards each and not be loud.

the six card rack I show in the photo had 24 cards for 4 months and ran fairly quietly.

if you have a garage with a back door you could run his idea and not be so loud.

Looks nice.
And shipping probably wouldn't be that bad, since it probably would all stack on itself when dis-assembled.
(Although you would obviously want to ship within the same country unless you desperately needed this.)

Awsome project. The noise must be real though :/

-yslyung

no stress mate, that is why we are here, for fun projects and feedback.

for the record:

- computer parts listed are not mining parts and just sample parts at the moment (i will be making one just give me time)

- you cannot use all RX cards, ones with backplates will not fit for one. however certain cards run fine and fit with a chop sticks width worth of space between each card. - not ideal but I am working on a riser version for 6 cards +

- I have 2 boards running with 4 cards with no extra fans and have been stable for some months now. hotter than normal though, fans are recomended

- this board was on sale for $75usd on new egg, the community bought a bunch (i already loved it before it was on sale anyway)

-shipping will not be too bad because it will come as a kit set and customers will build it themselves with instructions


I realise this is by no means perfect but I think it will be a nice fun project and I think you will all be pleasantly surprised with my finished product

stick 4 RX series gpu on the mobo, yes u definitely need a bracket, however i'd say they will be "too close for comfort". the fans will be literally sticking to each others backplate except for the 1st gpu.

the gpu that you are using is a little "thin" what gpu is that ? - most use RX series gpu

even single mining it'll be too hot imo & will still require some sort of extra cooling - extra fans = extra power consumption & costs for extra fans

it's not commercially viable if 1 is not fully utilizing what a gpu/mining software can do & to maximize profits - not fully utilized = less profit/longer roi

only 4 gpus available & only on certain mobos with 4 full pcie lanes - i hope those mobos will be cheaper than a biostar tb85

i'm sure many of us are aware that how much power the RX series pulls from the pcie lanes, with 4 on the mobo it's gonna be quite a bit even single mining with the hot air blowing onto the mobo = accumulated heat = potential fire hazard = higher chance of failure

again, sorry to have many -ve points, but if there's no constructive criticism (i hope you take it this way) there won't be any improvements.

thumbs UP for the real & actual product ! + looks clean even using non full modular atx psu. but imo, it does not really help much with the points above. i hope you take it the +ve way & come out with an improved solution/version. i do like the simple design but needs to more effective/flexible. shipping will still be a PITA, not many couriers are willing to ship certain sizes/dimensions, do double check on that & also shipping prices.

*although power consumption is low, it is never a good idea to plug 4 psu's into 1 extension cord on a single power point*

http://imgur.com/a/w0jO7

please note that the one that is made is actually a 6 stack however we will be converting and selling the 5 stack

you will all probably shoot me but I run 4 ref cards on these boards with no extra fans lol, admittedly i am not dual mining. stable as hell, little hotter than normal though.

I am looking to add mounting brackets to see if we can make this be able to handle more GPUS (6-7)

My two cents : I assume the depth of each rack would be 300mm atleast. Then for 300mm x 500mm x 925mm this is too inefficient in terms of space utilization.
Also I would recommend some kind of support for the GPU's mounting bracket to take some of their weight off the motheboard.
I am working on a rack design inspired from the 4U cases for my home setup, will share pics later.

Also, for sharing pics, just right click on the imgur pic and open it in a new tab, that will get you a direct link, you need to paste the direct link here for it to work.

the idea needs box fans.  what you don't see in my setup is a box fan behind the rack blowing air at the rack.

I think it could work.. if you use 20 inch box fans.

Some thoughts  are  four card rigs can use the evga p2 750 watt atx.

My gear is never driven hard as I will never go full commercial with roi driving all my projects.

I can provide 50 amps of 240 volts in my home  about 12kwatts.

with a wife in the home I don't.

At the moment I do 16 amps in my home.

Those four card rigs work pretty well at stock bios with some undervolt.

finally as I mentioned when I started to mine dual eth + decred on claymore 8  the rigs  got hot.

I sold off some cards and don't run four cards in them at the moment.

oh you can not do four cards on that board if they have backplates

you might want to wait a bit and include jstefanops solution for many cards on a single mobo (https://bitcointalksearch.org/topic/m.18126141)

this way you could save on mobos/cpu/ram and just build levels of gpus + psus and a mobo combo on the ground level

sorry to pour cold water, but it's not gonna work & fail, you will see why, build a prototype & show us with actual pix.

cost will NOT be lower, i can assure you that in fact HIGHER ! - post your prices . . .

packing & shipping+handling will be a headache hence more added cost due to dimension over weight.

philipma's setup is very ghetto, yes it works but sorry to be blunt/rude, but its a mess & a fire hazard imho.

NOT all mobos are able to provide that amount of power via the pcie lanes for a 24/7 operations, that's why a powered riser is there for a reason & to enhance cooling.

yes philipma again yeah ? ask him about his settings, way underpowered undervolted so probably that's the reason why it's working out for him but it does not apply to everyone else.

sorry guys for the criticism but just a very blunt & direct honest opinion.

it's a thumbs down for me atm until OP builds an actual product & showcase it with the points he pointed out... GL on your adventure mate, THUMBS up ! for the idea/innovation though. 

-sexcyness for one

-more compact than 6gpu open air framed rigs

-cheap cost per rig and minimal setup

- phill runs these machines fine with no risers

-I will look at adding fans to the structure but you can literally have one 120mm fan blowing down ontop of the 4 cards for good cooling

What's the advantage over a standard 6 card open air rig?  I don't see fans so what is your plan with airflow with this setup as your cards are going to basically be touching?

How much would one of these cases cost?

If you don't mind sharing-- which model mother board are you using?  And which model of GPU?

I'm curious about the airflow-- as I would expect blowers to work well in this situation but you seem to have side fan types-- is there space on the far side (which we can't see in the picture) for air to come in?   This close I guess they work like blowers?

I haven't had trouble with risers (I have maybe one that might not be working but can't prove it, just replaced it) .... but then I haven't been mining very long at all!

I do kinda like the very compact look of the four GPUS directly on the board, etc.

Those are very interesting.   Consider a couple possible changes-
- using Server PSUs like are sold on this forum
- Aligning all elements to not block airflow.  EG: the drives here seem like they would block airflow across the boards.
- If you make the levels close enough the  bottom of one works as the ceiling of the one below it, to make air flow easier to direct. I'm no expert but am just thinking fans blowing across the boards form the side might be useful.

I assume you are using extruded aluminum and sliding a metal sheet into the gap?  I have some OpenBeam stuff Ive been playing with, very nice (though I'm going a different direction myself given my limited space.)

 clamping system could be a nice idea, and we could add a top shelf for monitor/keyboard/kvm switch

not sure about price at the moment, and material is aluminum file + spray-paint iron base

the rigs slide out for easy maintanace and closer look at your rig

Cheers

My four cards rigs have worked since may of 2016
he is improving this design

they work with out risers

4 cards a rig 24 cards total.

but they will struggle to dual mine  eth + decred
without added fans

Do those MOBO's not need risers?  How are temps with 4 cards packed that close?  Are any extra fans needed to cool the entire tower?

It looks like the idea is that each level will slide out, whats the reasoning behind that?  Just seems like extra cost.

What price point are you looking at and what is it made out of?  Some kind of clamping system along the side would be nice for power cords and ethernet cables.  Also a shelf/place for a monitor and switch would be cool.