12x 1080 ti mining rig. How to manage the PSUs???

[DanEON]

Hi,

First I would like to say that I've made a lot of searchs here and coudnt find a answer to my doubt.

I want to build an 12x 1080 ti rig, using the mobo AsRock H110 Pro Btc. So, I will need at least 3400w of power supply (270w, a safe margin, for each VGA + 150w for the rest).

The problem is that 1600w+ PSUs are damm expensive, and there are not much options available (in my country). So I was thinking on using 6x 650w PSU (two VGAs connected on each PSU) and 1x 750w PSU for the mobo + PCI risers.

So, will it work? Or do I really need a single PSU for all the VGAs???

Thanks! 

[InfectedCoin]

Its better getting few 1600 watt then alot of 600 watt psu looks cleaner less sockets used and dont forget to buy minimum bronze rating

[DanEON]

Its better getting few 1600 watt then alot of 600 watt psu looks cleaner less sockets used and dont forget to buy minimum bronze rating

well, I really dont care about all the cables and how it will look. I dont have much options to be honest. But what problems can I have if I use 6x 650w PSUs??

[InfectedCoin]

Well if those things doesnt matter for you theres no problem just dont use sata adapters that are included with risers and you will be good to go

[VyprBTC]

Well if those things doesnt matter for you theres no problem just dont use sata adapters that are included with risers and you will be good to go

And why is that? Over 500 1080 TI's using those adapters for a year, not a single issue.

So again, in your OWN experience. What was the issue you had.

[InfectedCoin]

From them sata connectors risers take more then 75 watts and sata is rated 50 thats how you burn youre shit

[VyprBTC]

I asked for YOUR OWN experience, not some FUD you read.

We had 500 1080 Ti's 2 risers per strand.

Not a single issue.

I'm tired of all the retards spreading FUD around with no fucking real world experience. A bunch of fucking parrots that go around squawking FUD FUD FUD because they read it somewhere, not because they know something, but because they only know how to repeat anything they hear.  Poly want a cracker? Poly want FUD

[QuintLeo]

I don't spread FUD.

 I DO point out that the SATA connector ITSELF is only rated at 54 watts when the PCI-E bus is rated to draw up to 75 watts, and THEREFORE there is a significant risk in powering risers from SATA connectors.

 There are also a LOT of folks that have reported melted, burnt, etc SATA connectors that were powering risers - it might work for YOU, but that does not change the risk factor.


 The issue is real enough that I refuse to GET any "real world experience" with this POTENTIAL OVERLOAD ISSUE.

[koinli]

use at least 4kw real power, not on the plug, i mean installed power not on the label on psu,

you can use 4 x 1000 w 80+ gold psu, you can use add2psu card for it,

remind it more installed power means more safe and stable power feed.

also you can use 2x 1200 watt and 2x 1000

[dannysonfire]

You have 12 x 1080 ti's and you are worried about the costs of power supplies?? 

[DanEON]

I asked for YOUR OWN experience, not some FUD you read.

We had 500 1080 Ti's 2 risers per strand.

Not a single issue.

I'm tired of all the retards spreading FUD around with no fucking real world experience. A bunch of fucking parrots that go around squawking FUD FUD FUD because they read it somewhere, not because they know something, but because they only know how to repeat anything they hear.  Poly want a cracker? Poly want FUD

Good that you posted here. An opinion from someone with experience is what I need. So what do you think? Will I be able to use 6x 650w PSUs?? Or should I use less and more powerful PSUs?
And how do I set the PCI Risers?? Should all off them be conected to the MOBO PSU? Or should I connect it to the same PSU of that VGA??

Btw, I will be using 12x Risers with PCIE connectors. The ones that I cant connect directly to a PCIE supply, I will use a molex adapter.

[DanEON]

use at least 4kw real power, not on the plug, i mean installed power not on the label on psu,

you can use 4 x 1000 w 80+ gold psu, you can use add2psu card for it,

remind it more installed power means more safe and stable power feed.

also you can use 2x 1200 watt and 2x 1000

Well, 4x 1000w PSUs is a good option, I can get those for not much more $$.
So do I need to connect all 4 together with add2psu's? Am I able to do that?

And I will do the same question as the post above. How do I set the risers? All of them in the MOBO PSU or conected to the PSU of that respective VGA???

[Metroid]

You have 12 x 1080 ti's and you are worried about the costs of power supplies?? 

So true hehe.

[DanEON]

You have 12 x 1080 ti's and you are worried about the costs of power supplies?? 

So true hehe.

Well, money is limited. I need to get the maximum hashrate possible. If I go for more powerfull PSUs, I will problably need to give up on one 1080 ti. So why not try it? That's why I am asking it here. 

[Metroid]

270 watts each gpu is a lot, whattomine says most algos will use maximum 190 watts, overclocking past 190 will yield very little increase in hashrate. If I was the one building such monster rig, I would go with 3 x evga g3 1000 watts. That would be way enough for 12 gpu's.

[melpheos]

My own experience :
platinum HP 1200w server psu with breakout board and pico psu 250w
You do this *3 and you have 3600w available for 200€+pcie express cabling

Only issue is NOISE ! I replaced the 40mm fan by 2 90mm fan and moded the cover

[fanatic26]

I don't spread FUD.

 I DO point out that the SATA connector ITSELF is only rated at 54 watts when the PCI-E bus is rated to draw up to 75 watts, and THEREFORE there is a significant risk in powering risers from SATA connectors.

 There are also a LOT of folks that have reported melted, burnt, etc SATA connectors that were powering risers - it might work for YOU, but that does not change the risk factor.


 The issue is real enough that I refuse to GET any "real world experience" with this POTENTIAL OVERLOAD ISSUE.

I have over 10,000 sata powered risers in use and have never burned a single cable.

People report burnt cables because they try and run 3-4 off of a single 18awg PSU run of wires instead of properly spreading the load.

Do not confuse user error with hardware problems. I tend to think that people making these claims are just spreading FUD because they dont have the experience and are just parroting what they read on here.

[QuintLeo]

3 1080 ti running at 200 watts or less will run COMFORTABLY on a EVGA G2 850 or Seasonic X-850 (yes, that IS experience, out of my B250 Mining Expert rig).
 You could probably push them to 220-230 watts or so without issue.

3 x 850 and a single 1000 (use the bigger supply to run 3 cards and the MB/RAM/etc) should be plenty.

4 cards even at 250 watts TDP (which is a waste, 1080 ti hashrate at 250 isn't enough higher than at 225 to justify it even on GOOD cards like the AORUS) will run comfortably on a 1200-1300 watt supply.
3xEVGA G2 1300 (or 3 x Seasonic X-1250 IF you could find them any more) would be viable for a 4-card per PS setup - and if you use the B250 Mining Expert motherboard, you don't need Add2PSU for that configuration (but that MB HAS been hard to find for a little while).

[Metroid]

3 1080 ti running at 200 watts or less will run COMFORTABLY on a EVGA G2 850 or Seasonic X-850 (yes, that IS experience, out of my B250 Mining Expert rig).
 You could probably push them to 220-230 watts or so without issue.

3 x 850 and a single 1000 (use the bigger supply to run 3 cards and the MB/RAM/etc) should be plenty.

4 cards even at 250 watts TDP (which is a waste, 1080 ti hashrate at 250 isn't enough higher than at 225 to justify it even on GOOD cards like the AORUS) will run comfortably on a 1200-1300 watt supply.
3xEVGA G2 1300 (or 3 x Seasonic X-1250 IF you could find them any more) would be viable for a 4-card per PS setup - and if you use the B250 Mining Expert motherboard, you don't need Add2PSU for that configuration (but that MB HAS been hard to find for a little while).

Exactly. This guy is smart.

[ikicha]

Its recommend to using dual PSU 1300W x 2 PSU, to handle all your card sir.
I using 6 card RX 570 and i use 2 PSU to handle them

Corsair 750W and EVGA 600W

Add2psu is needed