INWIN C750, Platinum: Strange Design?

[j.bisous]

Hi there,

I just got an INWIN c750 PSU (750 Watts, Platinum)


I took it apart to clean it and something puzzled me.
The CPU and PCIE PSU connectors have the same shape
After measurement at the terminals of the CPU connector, only 3 pins deliver 12 volts, the rest being connected to ground:


Looking at the PCB, we immediately notice that there are only 3 wires connected to 12 volts and 5 to GND:


My question: is this kind of connection "nomalized" or it could cause problems in use?

Thanks for your help!

[Per Hansson]

Re: INWIN C750, Platinum: Strange Design?

The standard says this:
https://allpinouts.org/pinouts/conne...ie-8pin-power/
https://allpinouts.org/pinouts/conne...eatx12v-8-pin/

Probably they reused the connector for PCI Express also for the CPU.
It is probably fine, graphics cards generally draw more power anyway and there 3x12v is the norm...

[j.bisous]

Re: INWIN C750, Platinum: Strange Design?

Probably they reused the connector for PCI Express also for the CPU.
It is probably fine, graphics cards generally draw more power anyway and there 3x12v is the norm...

Thanks for your reply!
So if i understand well, for CPU purpose they just use 3x12V input to supply the 4x12V required?
I'm just afraid that I will burn something by putting my Ryzen 5 3600 with this PSU... Maybe it's enough to handle this type of processor ... or maybe not .