For this i will start with, ... I have tried the conventional style with the MB and PSU under the GPUS and even though compact i do not like the heat and air flow. Even with fans i could not get the temps down to nice values. with my rack design i get 60 Deg C Avg per rig on about 75 - 80% fan speed, i use 10x MSI RADEON RX580 ARMOR 8GB, 6 per rig. These images shows an unfinished rig ready for components to be added and the base to be cut and drilled !
This design can hold up to 8 GPU, Full ATX size MB and Dual PSU and i have a slit cut under the MB 8-9 by 1 inch for use of a stacking system..
The width of the unit will hold 4x 120mm Fans front and mid, (Front of the GPUs and Behind the GPUs) sucking air from the front and sucking out from the GPUs at the back.
As you can see from my incomplete or unfinished rack there are 2 rigs, but these two are in the stacking configuration. 4 GPUs and 8 Fans with 1 PSU all controlled bu the unit under.
Parts list in materials is as follows for one rig.
All in millimeters (mm)
1x 90 x 21 x 21 OR 1x 90 x 20 x 20 Wooden Bars
1x 235 x 21 x 21 OR 1x 235 x 20 x 20 Wooden Bars
4x 641 x 21 x 21 OR 4x 641 x 20 x 20 Wooden Bars
5x 482 x 21 x 21 OR 5x 482 x 20 x 20 Wooden Bars
4x 120 x 21 x 21 OR 4x 120 x 20 x 20 Wooden Bars
2x 120 x 42 x 21 OR 2x 120 x 40 x 20 Wooden Bars
2x 264 x 21 x 21 OR 2x 264 x 20 x 20 Wooden Bars
1x 641 x 524 x 6 OR 1x 641 x 522 x 6 MDF Sheet
The reason behind the 21x21 is that the diy shop local to me does not do the 20x20 so the base size is adjusted accordingly.
The first 2 items 90 and the 235 are for the back at the base for the IO on the MB you can see this gap in the picture above.
The 120's are the pillars or stilts all around the unit.
The 6mm thick sheet is the perfect strength for the weight of the components once mounted.
The parts and plan for the rack will come soon once i have completed my prototype.
Comments
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https://goo.gl/photos/oQsPBi5nWdoDWf8X9
Frist, great write-up. Rigs look amazing! I was thinking about tackling this as a project of my own. Might start on gathering everything this week. I had a few questions.
1. What kind of wood is it? Pine?
2. Did you pre-drill holes to help with wood splitting?
3. How long are the screws that you used? I've had trouble in the past with wood splitting from to large of screws.
4. Do you think this design would work well with the reference style cards?
Thanks!
1, its pine you can pick that up from b&q or any diy store really.. (the base i6 6mm MDF)
2, yes all holes are pre drilled 1 - 1.5 mm smaller than the screws.. of course.
3, 2 sets, 4x20 and 4x50 both wood self tapping.
4, they should do, the cards i use are the rx580 Armor OC 8g which are about the same length, but you can google the size...
Because the CPU is not fully loaded the temp air flow running over in this config is an avg of 45 which in anycase is not all that good. how ever thinking of the air flow here its only for the GPU and not the whole rig. adding sucking fans to the back of the unit will drop the temp deffo.
However with mine i will be doing more, as said before above.
Currently...
There are other airflow problems that i solved with the base of the unit.
This design can be used in many different configurations. Stacking or Single rigs or even slide in a rack. The rig it self can be used as single PSU / Dual PSU and a FULL ATX MB.. lots of fan space and air flow if the fans are configured correctly.
There is another mod coming, which is to put the power switch and led at the front of the rigs..
So far so good on the rack box, all thats left is to angle grind the screws sticking out and drill and cut the door to support filters, extractor fan and electrical wiring.
THE VIDEO is my rack so far.
https://goo.gl/photos/ohW8rUQSATPqrQj28
I also have a facebook group for this rack and rigs :
https://www.facebook.com/groups/325657744554167/?ref=aymt_homepage_panel
I will get around to do this once completed.
PS i know i said the temp will drop down to 10 deg, but what i mean was that it will drop my temps down by 10 deg.
https://www.facebook.com/groups/325657744554167/permalink/348787905574484/
https://photos.app.goo.gl/aKesSb3PtKZLE8oU2
PS i know i said the temp will drop down to 10 deg, but what i mean was that it will drop my temps down by 10 deg..
https://photos.app.goo.gl/XsrgxZN9Isrc6ZMS2
Its shows 2 x 16amp rate mains cable and 1x cat6 to a switch inside.
2 x 6 point extensions rated @ 13amp (each rig uses 2x points)
the switch is a gigabit 8 port netgear which will do the job, the fan draws 100w
you see the total about 19XX.XX Watts so take 100 and some for the switch and that the 2 rigs usage.
My temps in a warm room by the window still dropped to an avg of 56.69 deg C. so i got the temps dropped by 8-9 by boxing and exhausting. i still need to think about the exhaust going out side but a back box and reducer with flexi piping does not work this actually raised the temps by 10 deg C. what was happening is the back box was collecting edge bow and the reducer cause air pressure. in turn some hot air was being blow back into the rig and rotated
https://photos.app.goo.gl/FYCWszLvAcSTw0Ux2
In the config i use:
globalminer claymore
stratumproxy enabled
proxywallet YOURETHERADDRESS.RIGNAME
proxypool1 eu1.ethermine.org:4444
proxypool2 us1.ethermine.org:4444
flags --farm-recheck 200 -esm 0 -estale 0 -mode 1 -asm 1 -dcri 20 -cvddc 900 -cclock 1200 -mclock 2150
globalcore 1200
globalmem 2150
globalfan 70
maxgputemp 70
globalpowertune 4
And for the bios i use "Armor580Samsung+Hynix1300-925mv.2175-1040mvKombi.rom" see if you can google it.
this gives me 30 per card (29.75) and good temps, with the samsung memory hashrate is a little slower with (29.43)
Tested power tune at 7 and get 31+ per card but the watts per MH is a LOT higher.
And some pics..
I'm also using wood for building rigs, and i got frequently the critic about fire hazard.
What was your considerations about this?