Solved PSU Recommendation for Three different GPU Configuration

January 17, 2018 at 19:52:43
Specs: Windows 10 64bit, Ryzen 1800X
Hello,

May I ask you for your suggestions for these 3 configurations:

1. May I know is this PSU: Corsair VS 450 is enough for this configuration:
Ryzen 1800X (OC to 3.8)
Corsair Vengeance LPX 16 GB Ram
Mobo: GA AX370 Gaming - 5
GPU: GTX 730

But we don't play games on this rig, only use it for work purpose. Currently the rig works fine but wondering is this PSU is enough?

2. If I use one GTX 1080 Ti in below configuration then how much wattage PSU is required:
Ryzen 1800X (OC to 3.8)
Corsair Vengeance LPX 16 GB Ram
Mobo: GA AX370 Gaming - 5
GPU: GTX 730


3. If I use two GTX 1080 Ti cards in below configuration then how much wattage PSU is required:
Ryzen 1800X (OC to 3.8)
Corsair Vengeance LPX 16 GB Ram
Mobo: GA AX370 Gaming - 5


How much UPS VA are required for these configuration. I have already one UPS of 600 VA and the other is 1000 VA, please let me know can I use any of them with these kind of configuration?


Thanks for reading it


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#1
January 17, 2018 at 20:53:11
✔ Best Answer
The GT430 will have more than enough power on the listed power supply.
The GTX1080Ti would not. It is spec'd as using 250Watts itself and the recommended power supply would be a good 600Watt model. The other site with testing I linked below shows a peak draw of just under 300Watts by itself. In conclusion, you can use a Corsair power supply 600W to 650W or higher for one card. For two it will not be double but a 750W - 800W model may not be enough so I would say you would be better with a 1000W model from Corsair or similar quality.

https://www.nvidia.com/en-us/geforc...
http://www.tomshardware.com/reviews...

You have to be a little bit crazy to keep you from going insane.


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#2
January 18, 2018 at 03:15:44
try this:
http://www.coolermaster.com/power-s...

i5-6600K@4.670GHz/4.336GHz cache@1.33v | 2x4GB Crucial-DDR4-2133@ 14-14-14-28 1T 2899MHz@1.4v | ASUS Z170-K | Samsung 250GB SSD 850 EVO | MSI RX 570 4GB@1380cc&2087mc bios-powertune-mod | Corsair VS45


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#3
January 18, 2018 at 08:16:15
I posted this in you thread but you really need to reconsider using two 1080 TI's with that CPU.

http://thebottlenecker.com/


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Related Solutions

#4
January 18, 2018 at 08:21:55
AMD Ryzen 7 1800X with GeForce GTX 1080 Ti (x1) will produce only 1% of bottleneck

an overclocked 8700k might give you slighly higher fps potential because of the 6 cores & 12 threads oc-able to 5GHz+, especially if you have more than 1 gtx 1080ti

but imo an oc'd 1800x with 8 cores & 16 threads is fine

i5-6600K@4.670GHz/4.336GHz cache@1.33v
2x4GB Crucial-DDR4-2133@14-14-14-28 1T 2899MHz@1.4v
ASUS Z170K
Samsung 250GB SSD 850 EVO
MSI Armor RX 570 4GB@1380c/2087m bios-mod
Corsair VS450


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#5
January 18, 2018 at 14:11:18
If the calculator is correct, R7 1800X with two 1080 Ti's = 19% bottleneck.

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#6
January 18, 2018 at 23:17:35
I'm grateful to all of you for replying.

I'm really surprise that a pricey cpu can't handle even 3 GPU's 1080 ti and it do well If I go for only one which doesn't serve my purpose. So I'm wondering what's the purpose of Ryzen 1800X?


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#7
January 19, 2018 at 04:19:54
If price is not a limiting factor the look at:
Intel® Core™ i9-7980XE Extreme Edition Processor
18 Cores
36 Threads
Then calculate the ballistics for a massive soda bottle rocket to Mars (unpowered flight).
How many Jelly Beans would fill Yankee Stadium. Generate Bitcoins so they are coming out your ......
And other ridiculous things.

You have to be a little bit crazy to keep you from going insane.


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#8
January 26, 2018 at 06:51:18
"So I'm wondering what's the purpose of Ryzen 1800X?"

What's the purpose of running three GPUs? Triple SLi? Running multiple monitors?

Even if you were to get the i9-7980XE as suggested above, the calculator says there will be a 15% bottleneck with three 1080 Ti's.


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