1000W + 850W PSU enough for 6x1080Ti? (+15 amps question)

nc50lc

legendary

Activity: 2534

Merit: 6080

Self-proclaimed Genius

Only the 12v Rail will power your 1080Ti,
that 850W PSU is a bit questionable if it can handle those three at stress.
Look at the label for the 12v rail and how many amps it can supply, use that information to compute if it is above (200Wx3) 600W or 50amps.

Same with the 1000W, Other components will use the other voltages and some from the 12v.
Check the 12v rail if it can power 3 GPU and a CPU. (surely it can)

Looking at your plan, it looks like it is going to be unstable.
Take a 1500W in place of the any of the two PSU to use for 4-5 1080ti, just 1-2 GPUs and the Mobo in the other one, my advice.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

I run six on the corsair 1500

I set to 190 watts each works fine

halker2010

sr. member

Activity: 532

Merit: 250

The harder your life is the more meaning it has.

maybe max power draw of each gpu should not be more than 250 so 350 watt for all the other things might be a bit low try 2x1000 PSUs if you can afford it or try and see if current wattage works when you could i really thing it can handle it.

bitcoinforever2

newbie

Activity: 6

Merit: 0

I plan to run all 1080Ti at 80% max draw on MSI Afterburner, so should be around 80%*250=200W

1000W PSU will have mobo, cpu, ram, ssd and 3 1080Ti. Should be around 150W for mobo/etc + 3*200W for the GPU, 750W total or 75% load.

850 PSU will have 3 1080Ti, so 3x200W = 600W, 70.5% draw

What do you guys think??

Also wondering if I can run all of this out of a 120V 15A circuit. Total power draw: 750W+600W=1350W.

15 A 120V should be 1800W, or at 80% draw, 1440W. 1440W > 1350W. Right?

Failing to see what I'm doing wrong or if I miss something. Those circuits are separate and nothing else will be plugged on them.

Thanks!

Topic: 1000W + 850W PSU enough for 6x1080Ti? (+15 amps question) (Read 167 times)