PSU Installation help

[flickofdawrist]

I have a RM750. My build is: 1x GPU (RTX 3070), 5800x, 1x HDD, 1x m.2 SSD, B550-F STRIX GAMING Motherboard, 2x16GB RAM, CPU Air Cooler.

 

I don't really know which cables I should plug in the PSU. This is how the PSU looks:


The cables it comes with:

 

[Skiiwee29]

You will need 1 Sata/Peripheral, your 24 pin ATX, 1 4+4 pin EPS CPU and 2 6+2 PCIE for GPU power. 

[flickofdawrist]

16 minutes ago, Skiiwee29 said:

You will need 1 Sata/Peripheral, your 24 pin ATX, 1 4+4 pin EPS CPU and 2 6+2 PCIE for GPU power. 

Why did you put a slash between sata & peripheral? Also, what are the best slots to plug into for optimal wire management?

[Tan3l6]

You probably don't need peripheral (molex), only SATA power for HDD. As the 4-pin molex is for legacy HDDs.

[flickofdawrist]

Just now, Tan3l6 said:

You probably don't need peripheral (molex), only SATA power for HDD. As the 4-pin molex is for legacy HDDs.

I have a 2TB Barracuda Compute (ST2000DM008) if that helps.

[Tan3l6]

1 minute ago, flickofdawrist said:

I have a 2TB Barracuda Compute (ST2000DM008) if that helps.

Yeah, you need only one SATA cable.

[flickofdawrist]

1 minute ago, Tan3l6 said:

Yeah, you need only one SATA cable.

Okay but which one of the two? There's a 3 SATA and a 4 SATA.

[Tan3l6]

1 minute ago, flickofdawrist said:

Okay but which one of the two? There's a 3 SATA and a 4 SATA.

Either ... you only have 1 SATA HDD to plug it in, right.

[Chris Pratt]

12 minutes ago, flickofdawrist said:

Okay but which one of the two? There's a 3 SATA and a 4 SATA.

The SATA cables are designed for a rack of drives, so you can run just one cable up and connect each in a chain. You would traditionally use the 3 if you had three drives to connect or the 4 if you had 4 drives. Since you have just one drive, it hardly matters which you use.

[flickofdawrist]

2 minutes ago, Tan3l6 said:

Either ... you only have 1 SATA HDD to plug it in, right.

Yea, only one. I saw a guy on youtube plug in 2 CPU cables, what for?

[Tan3l6]

Just now, flickofdawrist said:

Yea, only one. I saw a guy on youtube plug in 2 CPU cables, what for?

For CPU (on the motherboard) there is 20+4-pin and 4+4-pin connectors, as @Skiiwee29 mentioned. They are let's say required to power mainly CPU and motherboard.

[flickofdawrist]

2 minutes ago, Tan3l6 said:

For CPU (on the motherboard) there is 20+4-pin and 4+4-pin connectors, as @Skiiwee29 mentioned. They are let's say required to power mainly CPU and motherboard.

Wait, I'm confused. So I need 2x 4+4 CPU or still only 1x? Skiiwee said 1x.

[Tan3l6]

38 minutes ago, flickofdawrist said:

Wait, I'm confused. So I need 2x 4+4 CPU or still only 1x? Skiiwee said 1x.

yeah, you need one 24-pin and one 8-pin for the CPU and MoBo

edited -  @flickofdawrist ... oh, this one has 4-pin also for CPU in addition of the 8-pin (4+4 EPS)

So you need 24-pin, 8-pin EPS and 4-pin EPS to the mobo.

 

 

Spoiler

 

[flickofdawrist]

24 minutes ago, Tan3l6 said:

yeah, you need one 24-pin and one 8-pin for the CPU and MoBo

... oh, this one has 4-pin also for CPU in addition of the 8-pin (4+4 EPS)

So you need 24-pin, 8-pin EPS and 4-pin EPS to the mobo.

The 24-pin cable feels kinda rigid, is it fine if I force it a bit to go through here?

[Tan3l6]

2 minutes ago, flickofdawrist said:

The 24-pin cable feels kinda rigid, is it fine if I force it a bit to go through here?

Should be fine, at least when all wires will stay intact.

[flickofdawrist]

38 minutes ago, Tan3l6 said:

Should be fine, at least when all wires will stay intact.

Am I supposed to plug in the CPU in these 2 slots? That's why you said I need 8pin and 4pin?

Edit: nevermind, I just noticed you added a screenshot.

[flickofdawrist]

4 hours ago, Tan3l6 said:

Should be fine, at least when all wires will stay intact.

I'm almost done with the build and i just noticed that the motherboard RGB is always on if the PSU is on, why is that?

[Guest]

You do not need the extra 4 pin cpu cable. Just plug in the 8 pin (4+4) one and it will be fine.

[flickofdawrist]

6 minutes ago, lee32uk said:

You do not need the extra 4 pin cpu cable. Just plug in the 8 pin (4+4) one and it will be fine.

Are you sure? I already plugged it in. Should I take it out?

[Guest]

3 minutes ago, flickofdawrist said:

Are you sure? I already plugged it in. Should I take it out?

If you have it plugged in then you can leave it, but it isn't required.

[flickofdawrist]

20 minutes ago, lee32uk said:

If you have it plugged in then you can leave it, but it isn't required.

Are they used for the CPU power consumption? If so, how can you know how much they can do?

[Guest]

33 minutes ago, flickofdawrist said:

Are they used for the CPU power consumption? If so, how can you know how much they can do?

They both provide power for the cpu. The 8 pin on it's own provides enough though. You would only need the extra 4 pin for extreme overclocking i.e Liquid Nitrogen. It won't do any harm to have it plugged in, but it won't make any difference.

[flickofdawrist]

52 minutes ago, lee32uk said:

They both provide power for the cpu. The 8 pin on it's own provides enough though. You would only need the extra 4 pin for extreme overclocking i.e Liquid Nitrogen. It won't do any harm to have it plugged in, but it won't make any difference.

I might take it out then. It's a 4+4 so I had to break it in half and it looks a bit weird because the other half just hangs.