Question I'm unsure if I correctly plugged the PSU ports on my new build ?

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kubrat

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May 8, 2019
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Hi!

I've just built my new PC but haven't powered it on yet because I'm unsure if I connected the cables to the PSU ports correctly.

The PSU is 750W Seasonic Focus GX 80+ Gold - SSR-750FX3

I have the following components:
Mobo: MSI PRO B650-S WiFi
CPU: Ryzen 5 7600X
GPU: RX 6800


1. GPU Connection:

- I used two separate PCI-E cables from the PSU to the GPU.
- I did not use a single 8-pin PCI-E cable with two split 8-pin connectors for the GPU.

Should I keep the GPU connected with the two separate PCI-E cables or should I change it and use just one PCI-E 8 pin cable that has 2x8 split ends for the GPU ports?

2. CPU Connection:

- I connected both 8-pin CPU connectors to the PSU.

I've noticed some people use only one 8-pin cable, so I'm unsure if both are necessary or if only one should be used.

3. Port Arrangement:

Should CPU and PCI-E cables be plugged into adjacent ports? Or should CPU and PCI-E cables be separated and not plugged next to each other? e.g. the two 8 pin CPU ports on the PSU should not be plugged next to each other? Same for the PCI-E.

I've included a screenshot of the PSU ports with an explanation of how I plugged in the cables.

https://imgur.com/a/wJe33Ys
View: https://imgur.com/a/wJe33Ys


Here’s how I’ve connected the cables (please refer to the attached image, where I’ve marked how I connected the CPU and PCI-E (GPU) ports with red text):

To the top CPU/PCI-E port (next to the motherboard port), I connected one of the PCI-E cables for the GPU.
For the three 8-pin CPU/PCI-E ports at the bottom, I connected the two 8-pin CPU cables to the first two ports (left to right) and the second PCI-E cable for the GPU to the third port.

I’d appreciate your feedback on whether I’ve connected the ports correctly or if I need to change anything.

Thank you!
 
Solution
Lutfij
From how you've conveyed it via text, yeah you've hooked up to the PSU side with the right cables and terminated them on the devices side, the right way.

1| Good. You can look through this as a guide.

2| CPU_PWR1~2 are what you have on the top left hand corner. Out of the two EPS connectors, you're good to hook up to just CPU_PWR1 and leave CPU_PWR2 empty. That additional CPU_PWR connector is if you're dropping in a higher end processor and performing an overclock.
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From how you've conveyed it via text, yeah you've hooked up to the PSU side with the right cables and terminated them on the devices side, the right way.

1| Good. You can look through this as a guide.

2| CPU_PWR1~2 are what you have on the top left hand corner. Out of the two EPS connectors, you're good to hook up to just CPU_PWR1 and leave CPU_PWR2 empty. That additional CPU_PWR connector is if you're dropping in a higher end processor and performing an overclock.
 
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Solution
Lutfij said:
From how you've conveyed it via text, yeah you've hooked up to the PSU side with the right cables and terminated them on the devices side, the right way.

1| Good. You can look through this as a guide.

2| CPU_PWR1~2 are what you have on the top left hand corner. Out of the two EPS connectors, you're good to hook up to just CPU_PWR1 and leave CPU_PWR2 empty. That additional CPU_PWR connector is if you're dropping in a higher end processor and performing an overclock.
Click to expand...
1. Looking at the scheme you linked, it seems that the standard is to use split connectors, but the recommendation is to use a separate cable for each GPU connector, which is what I did, as you confirmed.

2. I was looking at this guide, since he uses the same Mobo, CPU and GPU. He plugged in both CPU connectors. Starts at 16:38 -
View: https://www.youtube.com/watch?v=JjQ8Ut--7mA&ab_channel=CRATER


Why did he do that? Am I missing something in his build?
 
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Your PSU has the necessary connectors to hook up to both EPS connectors on your motherboard, if you're not going to overclock or won't drop in a Ryzen 7 or Ryzen 9 processor or want to be lazy and not manage cables nor have to deal with another 8pin EPS connector you can forgo it as stated in my prior post but the first EPS connector(i.e, CPU_PWR1) needs to be connected at the very least.
 
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Lutfij said:
Your PSU has the necessary connectors to hook up to both EPS connectors on your motherboard, if you're not going to overclock or won't drop in a Ryzen 7 or Ryzen 9 processor or want to be lazy and not manage cables nor have to deal with another 8pin EPS connector you can forgo it as stated in my prior post but the first EPS connector(i.e, CPU_PWR1) needs to be connected at the very least.
Click to expand...
Thanks for clarifying.
At least I know it's not necessary to have two connected but also that it won't be a problem if I have the two 8 pins connected.
 
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Misgar said:
It's used with some modern high power graphics cards. Your RX6800 uses two 8-pin connectors, so you don't need to plug the 12V-2X6 cable into your PSU. Keep the cable handy (and labelled with the PSU model number) in case you ever change to a more power-hungry GPU (RTX5090).
Click to expand...
Thank you! I appreciate it.
 
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