[SOLVED] Do I have the wrong psu for this motherboard?

[ScrabbleFox]

I had thought replacing the current psu unit would be fairly straight forward but when I went to disconnect the existing psu I see it's connected to the motherboard in 2 places; a 4 pin that says ATX_CPU, and an 8 pin that says ATX_SYS_1

The new PSU has a 4+4 pin connector that fits into either but I won't be able to power both with just one. Sorry if this seems simple, my last psu upgrade was on my personal machine and a lot more straight forward.

Motherboard: dell 0mwypt
https://www.dell.com/support/manual...eaa4a4-9cbc-445f-9845-75d8f7c620e8&lang=en-us

replacement psu: Antec HCG650

Connection images:
https://ibb.co/8P01ZpY

20190821-180042-HDR hosted at ImgBB

Image 20190821-180042-HDR hosted in ImgBB

ibb.co

Thank you for any help you can offer!

 

[Dark Lord of Tech]

4 pin is for CPU power , you use one half of the 4+4, but if you have a standard ATX PSU , you will need a motherboard power adapter.
https://www.amazon.com/Eyeboot-8-Pin-Supply-Adapter-Motherboards/dp/B01A210HKO
Eyeboot 24 Pin to 8-Pin Power Supply ATX PSU Adapter Cable for DELL Motherboard