Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

PSU and Mobo compatibility error?


Hi everyone, looking to create the following build, however i have the error that "1 additional EPS power connector is needed" when i selected EVGA supernova g3 650w for my PSU.

I looked through the specs for the GIgabyte z390 aorus master, it shows a 2x8 connection. is the error a false alarm or am i missing something here?

the error does not show up when i change it to EVGA supernova g3 750w.

what could possibly be the reason?


PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-8700K 3.7 GHz 6-Core Processor  ($369.99 @ Amazon) 
CPU Cooler: be quiet! - Dark Rock Pro 4 50.5 CFM CPU Cooler  ($84.99 @ SuperBiiz) 
Motherboard: Gigabyte - Z390 AORUS MASTER ATX LGA1151 Motherboard  ($293.98 @ Newegg) 
Memory: Corsair - Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory  ($129.89 @ OutletPC) 
Storage: Samsung - 860 Evo 250 GB 2.5" Solid State Drive  ($52.99 @ Amazon) 
Storage: Western Digital - Caviar Blue 1 TB 3.5" 7200RPM Internal Hard Drive  ($44.85 @ OutletPC) 
Video Card: Gigabyte - GeForce GTX 1070 Ti 8 GB WINDFORCE Video Card  ($379.99 @ Newegg Business) 
Case: Fractal Design - Meshify C White TG ATX Mid Tower Case  ($79.99 @ Newegg Business) 
Power Supply: EVGA - SuperNOVA G3 650 W 80+ Gold Certified Fully-Modular ATX Power Supply  ($75.88 @ OutletPC) 
Total: $1512.55
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-12-01 09:35 EST-0500

Link to comment
Share on other sites

Link to post
Share on other sites

EPS power is CPU power, of which you have only one. You have indeed 2x8 power, but that's for GPU only.(THEY ARE NOT COMPATIBLE)

You need a PSU with more CPU connectors or a MB with one CPU connector.

Link to comment
Share on other sites

Link to post
Share on other sites

Okay, correct me if I'm wrong. Looking at the aorus master specs, it means that 

1. 1x24-pin ATX main power connector

Is this what I need to connect my PSU to? 


2. 2x 8-pin ATX 12V power connectors

I have to have a PSU that connects to both? I thought as long as I connect to 1x 8-pin ATX 12V power connector from my PSU that should be enough? 


Not sure what you mean by that 2x8 power for GPU only. 

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now