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Topic: Help me choose PSU for 12 GPU's (Read 1105 times)

newbie
Activity: 5
Merit: 0
December 12, 2017, 04:50:03 AM
#26
Can someone help with how much PSU need to 12 of 1070 for safe running? 2x1000W?
Thanks!
sr. member
Activity: 462
Merit: 258
Small Time Miner, Rig Builder, Crypto Trader
July 28, 2017, 08:48:34 PM
#25
Why not three PSU?

Since you already have 860 and 750, I would add another 750 or 860 and get a better night sleep knowing that you have plenty of headroom and better PSU efficiency.

You can sync them all using something like this: https://www.amazon.com/gp/product/B072K8F6GZ

-SCSI
Why do people use stuff like this? It's very simple to use them all together, you simply need to short the green pin to any black pin in the ATX connector and the PSU will be on and providing power. Here is a very simple guide: http://www.instructables.com/id/How-to-power-up-an-ATX-Power-Supply-without-a-PC/

It even shows using a switch, but I just prefer using the power switch on the back of the PSU. I have been doing this since 2014 with no issues ever.

yeah ive done that and it ended up burning out the psu, horrible idea to do this not to mention YOU CANT TURN IT ON WITH THE OTHER PSU's, only an moron that wont spend 20 dollars to get an add2psu would short the wires like you do
full member
Activity: 298
Merit: 100
July 28, 2017, 07:47:58 PM
#24
full member
Activity: 131
Merit: 100
I Mine Anything and Everything!
July 28, 2017, 02:36:21 PM
#23
1060's tdp is 120W.
I would say you would be safe if you have 1600W or more since you probably will limit the power draw to 80% anyway.

can u please suggest what brand ?
and i want to buy 2 PSU's not one ..
the guys from the store suggested me :
2x Corsair RM850x 850W PSU 80+ Gold Modular

what do u think ?


I think corsair is fine. I prefer EVGA tho.
EVGA G2 comes with a test plug for 24pin which you don't have to purchase an extra dual psu adapter.
I'm pretty sure two 850Ws are enough and even have rooms left.
full member
Activity: 206
Merit: 100
July 28, 2017, 02:03:19 PM
#22
Why not three PSU?

Since you already have 860 and 750, I would add another 750 or 860 and get a better night sleep knowing that you have plenty of headroom and better PSU efficiency.

You can sync them all using something like this: https://www.amazon.com/gp/product/B072K8F6GZ

-SCSI
Why do people use stuff like this? It's very simple to use them all together, you simply need to short the green pin to any black pin in the ATX connector and the PSU will be on and providing power. Here is a very simple guide: http://www.instructables.com/id/How-to-power-up-an-ATX-Power-Supply-without-a-PC/

It even shows using a switch, but I just prefer using the power switch on the back of the PSU. I have been doing this since 2014 with no issues ever.

As far as I understand, stuff like this (a relay or a transistor based switch) will provide an additional protection in some failure cases. For example, if it fails, it will always fail in an off state while a simple green wire connection will leave the slave PSU(s) at the mercy of the primary PSU. Also, a relay based sync switch may provide complete galvanic isolation between PSUs if its desired.

And finally, yes, in most cases connecting green wires between three PSUs will work, but it requires some wiring or soldering skills and a bit of luck.
newbie
Activity: 71
Merit: 0
July 28, 2017, 01:21:41 PM
#21
parallelminer.com

any of their server psu's with breakout boards have been great to me.

Hands down this would by my recommendation too.  A server PSU with breakout boards is the way to go.  Get the 2400w model and you'll have room for growth even.  The catch is you'll also need PCI 6-pin powered risers instead of the typical sata/molex versions.  This would let you downsize your mobo PSU too, since ALL card power comes from the server supply.

My favorite perk of these supplies is cable length, with multiple GPUs placement becomes much easier.

How do you guys deal with the 240V requirement? I see they have 120V variants but they're priced around regular ATX PSU's.

Is converting to use 240V the only way or can some sort of PDU or adapter be used to run it on a regular house circuit?
sr. member
Activity: 1036
Merit: 311
July 28, 2017, 01:17:33 PM
#20
parallelminer.com

any of their server psu's with breakout boards have been great to me.

Hands down this would by my recommendation too.  A server PSU with breakout boards is the way to go.  Get the 2400w model and you'll have room for growth even.  The catch is you'll also need PCI 6-pin powered risers instead of the typical sata/molex versions.  This would let you downsize your mobo PSU too, since ALL card power comes from the server supply.

My favorite perk of these supplies is cable length, with multiple GPUs placement becomes much easier.
hero member
Activity: 1151
Merit: 528
July 28, 2017, 12:46:49 PM
#19
Why not three PSU?

Since you already have 860 and 750, I would add another 750 or 860 and get a better night sleep knowing that you have plenty of headroom and better PSU efficiency.

You can sync them all using something like this: https://www.amazon.com/gp/product/B072K8F6GZ

-SCSI
Why do people use stuff like this? It's very simple to use them all together, you simply need to short the green pin to any black pin in the ATX connector and the PSU will be on and providing power. Here is a very simple guide: http://www.instructables.com/id/How-to-power-up-an-ATX-Power-Supply-without-a-PC/

It even shows using a switch, but I just prefer using the power switch on the back of the PSU. I have been doing this since 2014 with no issues ever.
full member
Activity: 206
Merit: 100
July 28, 2017, 11:51:58 AM
#18
Why not three PSU?

Since you already have 860 and 750, I would add another 750 or 860 and get a better night sleep knowing that you have plenty of headroom and better PSU efficiency.

You can sync them all using something like this: https://www.amazon.com/gp/product/B072K8F6GZ

-SCSI
full member
Activity: 168
Merit: 100
July 28, 2017, 11:11:37 AM
#17
Server power supply.

Parallelminer has 2400w ones. THat's the one you want.
member
Activity: 273
Merit: 17
July 28, 2017, 09:45:53 AM
#16
Hey man.

You said you arena after a 2 psu stup. So for 12 gpus i would recommend 2x evga gq 1000watt.
Each havet 10x 8 pins (6+2).

Easy setup for you with mostly 6 pin risers.  Cool
sr. member
Activity: 378
Merit: 258
July 28, 2017, 09:03:10 AM
#15
Two corsair rmx 1000w will be enought for sure. With only one power suply will be very hard to have enought cables
for all that cards, not imposible but very hard to find especialy now when is hard to find any good quality power suply.
I also plan to make one rig with maybe even 13x 1060 but am little frustrated with new card euiped with hyunix
memory and max speed about 18m in eth Sad
full member
Activity: 145
Merit: 100
out here
July 28, 2017, 08:58:04 AM
#14
parallelminer.com

any of their server psu's with breakout boards have been great to me.
I cannot recommend them. They took over 1 month to ship my PSU and cables to me. I did, however, get the 2400w Deltas and they are tanks. If you can source them from other locations, I would say go that route.

You must have been waiting during their surge in orders. I luckily ordered a ton of equipment just before that delay hit.. They went out of stock months ago on all their products and just recently have been in stock 100%. They made customers aware of delays. in stock now and wouldn't worry about delays at this point, I love every single 1200w HP DPS psu they've sent me.

They've got decent customer support as well.
sr. member
Activity: 560
Merit: 250
July 28, 2017, 08:50:01 AM
#13
Two is enough minning 12 gpu.
hero member
Activity: 1151
Merit: 528
July 28, 2017, 08:47:24 AM
#12
parallelminer.com

any of their server psu's with breakout boards have been great to me.
I cannot recommend them. They took over 1 month to ship my PSU and cables to me. I did, however, get the 2400w Deltas and they are tanks. If you can source them from other locations, I would say go that route.
full member
Activity: 145
Merit: 100
out here
July 28, 2017, 08:36:49 AM
#11
parallelminer.com

any of their server psu's with breakout boards have been great to me.
newbie
Activity: 31
Merit: 0
July 28, 2017, 08:36:16 AM
#10
i think you have few choose only, lepa 1700 or superflow 2000 watt, and also the corsair 1500watt, but for just 8 1060, a 1000 can do it, they don't consume much, if you are gong to use 1070 int he future, it's better to have a 1500watt


WTF ?!?!
did you read the post Huh

i said i need 2 PSU !! TWO ! not a big one ! but TWO ( 2 ) ...
I WILL HAVE 12 GPU's 1060 6GB ! not 8 1060's not 1070's !



legendary
Activity: 2590
Merit: 1022
Leading Crypto Sports Betting & Casino Platform
July 28, 2017, 08:29:26 AM
#9
i think you have few choose only, lepa 1700 or superflow 2000 watt, and also the corsair 1500watt, but for just 8 1060, a 1000 can do it, they don't consume much, if you are gong to use 1070 int he future, it's better to have a 1500watt
newbie
Activity: 31
Merit: 0
July 28, 2017, 08:25:09 AM
#8
I also find : Corsair 1000W 80+ Gold RM1000i

and for people who dont want to read previous posts ( IM USING ETHOS ) it supports 12 gpus..
also if u gonna ask if my motherboard support 12 GPUS., YES ! i have Biostar tb250-btc pro
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