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ATX Power source, how to properly connect my components?

Hello, this is my first time building a gaming PC and I've been watching tons of videos and reading tutorials about this topic, but I still have a few questions, specifically regarding the ATX power supply and how to connect all my components to it. Let me start by listing the components that are giving me a headache:

Power supply: EVGA BQ 650
GPU: Zotac ZT-P10700G-10M
Mobo: ROG Strix B350-F Gaming
CPU: AMD Ryzen 5 1600 Series

With that out of the way my questions are:

1- The motherboard has two ATX power connectors: the classic 24 pin connector (EATXPWR), and the 8 pin connector (EATX12V). The 24 pin is a no brainer, but I'm confused about the 8 pin connector; does this connector supplies energy to the AMD Ryzen alone? I'm confused because the notches don't match, BUT IT DOES CONNECT! What I mean is, that my power supply has two 4 pin connectors, each one have a small label that says CPU. Should I connect those in the EATX12V port? I'm not forcing anything, because the notched pins can easily connect into the square-shaped slots, but that makes me feel worried. Hopefully I'm being clear, but I'll post a picture later in case I need a better way to explain it.

2- This one is about the GPU. It came with a dual cable (one 8 pin end to two 6 pin end each one, I'm sorry if this cable has a name, but I'm ignorant and for some reason isn't even listed on my GPU box). I know those connectors are for my ATX PCI-E connectors, but should I connect both or just one?

That's it, pretty simple, right? I'm sorry if it's a noob question, but well, I think we all start knowing nothing. I hope you can help me guys, thanks in advance!
4 answers Last reply Best Answer
More about atx power source properly connect components
  1. Yes, the two 4 pin CPU plugs go together for the 8 pin EATX12volt connection.
    The adapter you mention is if you need it. The GTX 1070mini requires a 6 pin (I believe) PCI-e connection. If you only have an 8 pin on the PSU for PCI-e, then use the adapter, and use one end of the 6 pin connectors. If your PSU already has a 6 pin PCI-e connection, don't worry about the adapter.
  2. Best answer
    1) 8 pin connector (EATX12V)
    Use the two 4 pin connectors and the latch side determines how they fit the connector. The shape of the pins there is meaningless.
    4+4 Pin +12 Volt Connector
    http://www.playtool.com/pages/psuconnectors/eps4plus4.jpg

    2) Product Specifications for video card say it needs one 8-pin PCIe Power Connection.
  3. Thank you both, dudio and Calvin7! So, let me get this straight, correct me if I'm wrong:

    1- The 8 pin connector with the CPU label will go in the EATX12V, and as long as I'm not forcing it, the shape of the pins are meaningless.

    2- My power supply comes with a 6 pin PCI-e connector and a 6+2 pin PCI-e connector; this means, since the port on my video card has an 8 pin connector, I'll directly connect the power supply's 6+2 pin PCI-e connector, no adapter needed.

    I'll wait for your confirmation, cause truth be told, I'm a bit scared to power it up for the first time without really knowing if it's properly connected, because I'm such a newbie, I almost connected BOTH PCI-e connectors to my video card using the adapter! I think I almost ruined my video card for thinking "hey, if they included this adapter thing, it must be for something, right?"
  4. gshector88 said:
    Thank you both, dudio and Calvin7! So, let me get this straight, correct me if I'm wrong:

    1- The 8 pin connector with the CPU label will go in the EATX12V, and as long as I'm not forcing it, the shape of the pins are meaningless.

    2- My power supply comes with a 6 pin PCI-e connector and a 6+2 pin PCI-e connector; this means, since the port on my video card has an 8 pin connector, I'll directly connect the power supply's 6+2 pin PCI-e connector, no adapter needed.

    I'll wait for your confirmation, cause truth be told, I'm a bit scared to power it up for the first time without really knowing if it's properly connected, because I'm such a newbie, I almost connected BOTH PCI-e connectors to my video card using the adapter! I think I almost ruined my video card for thinking "hey, if they included this adapter thing, it must be for something, right?"


    yes 6+2 together into 8-pin on the gpu

    no other cable needed

    and yes this goes into the cpu header for power

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