Dual System Single PSU

Kurgen

Kurgen

Kurgen

Soldato
Joined
10 Apr 2015
Posts
4,170
Location
Hungerford, UK, Earth
what would the power draw be on the systems below.. im thinking of using a single PSU using a Phanteks Power splitter, to allow me to remove the SFX PSU and cables and add another Fan

PC1
Intel i7 8700k
Gigabyte Z370N ITX Motherboard
16gb DDR4 3000mhz
GTX1060 6gb
2x 128gb M.2
3x 256gb ssd
1x 385gb ssd
Superflower 550w gold PSU

PC2
Intel Hex Core Xeon E5-2643 v3 @3.4ghz
Asus X99-MWS Matx Workstation Motherboard
64gb 2133mhz DDR4 ECC Ram
GTX1050ti
256gb m.2
1tb HDD
Silverstone 500w Gold SFF PSU

Case. Phanteks Mini-XL
 
That Xeon can be rather hungry, so would count that PC needing fair 200W.

Anyway if you're intending running wires from other PC to another if there's anykind notable distance between them, then wiring should be thicker than standard thickness to minimize voltage losses.
 
Are you going to use them both as gaming PC or will that second be purely some HTPC or work PC?
Especially if you're going to upgrade graphics cards that can cause notable power draw increase to current.
So tell more precisely about what you're going to use both of those PCs.
 
Kurgen said:
PC1
Intel i7 8700k
Gigabyte Z370N ITX Motherboard
16gb DDR4 3000mhz
GTX1060 6gb
2x 128gb M.2
3x 256gb ssd
1x 385gb ssd
Superflower 550w gold PSU

PC2
Intel Hex Core Xeon E5-2643 v3 @3.4ghz
Asus X99-MWS Matx Workstation Motherboard
64gb 2133mhz DDR4 ECC Ram
GTX1050ti
256gb m.2
1tb HDD
Silverstone 500w Gold SFF PSU
Click to expand...

Processors are 95w and 135w respectively
Graphics cards are 120w and 75w*

So you're at 425w there giving 125w for everything else. Fair enough, everything else doesn't draw much power but I'd say you're far too close.

*These are just rough figures pulled from Google so don't take them as gospel. Just giving you a rough idea.
 
UnworthyBean said:
Processors are 95w and 135w respectively
Graphics cards are 120w and 75w*

So you're at 425w there giving 125w for everything else.
Click to expand...
Worst GTX 1060 actually peak at 140W
https://www.techpowerup.com/reviews/ASUS/GTX_1060_STRIX_OC/24.html
But with only one HDD there and with mATX and especially ITX motherboards being more frugal 50W less should be more than enough for other parts.

Also simultaneous gaming on both is rather unlikely and anyway would't load CPUs fully.
Some heavily multithreaded rendering loading CPUs again wouldn't do much to GPUs.
So 750W would be easily enough.
Same for 650W unless both PCs are going to run simultaneous 100% CPU+GPU load.
 
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