Power supply

[Doggystyle]

Hello guys ,im newbe for pc equipment so i ask maybe something stupid but any answer will help me .  i have 6x vega 56 gpu card they need 3x 6+2 pcie. Problem and my question is can i somhow get 18 pci from my  EVGA 1600W SuperNOVA P2, ATX 2.3 power suply ?with extenedrs and spliters ... And is it safe? Thx

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[gotminer]

Your Vega 56's require (3) 8 pins?  What kind are they?  Mine only require (2) 8 pins.  I have some 8pin splitters sitting here, but I have not tested them on anything yet.  I thought I was going to need them for one of my Nvidia rigs, but it turned out I had enough in the box for what I needed.  I also use two psu's for each rig, so I end up with enough cables.  Some of them I have to use two single 8 pins, but with two psu's, you end up ok.

[jmigdlc99]

To add to what has been said (you could use 2 PSUs and have enough cables), you could also go for PCIE extenders. Those extenders would convert your 1 PCIE 6pin connector to 2 PCIE 6+2pin connectors. It is safe and i've been using it for months now without problem. You just need to make sure that you only connect 1 extender per PCIE cable. Don't overload it by connecting more than 1 extender.