Help! Asrock Z590M Pro MB and Corsair HX850 PSU EPS Power connector problem

[Gregg140]

Hello,

 

I'm trying to build a Desktop using the Asrock Z590M Pro4 motherboard and a Corsair HX850 PSU.

 

The problem is with the 8 pin EPS power connection on the MB (labeled ATX12 V1)  It's an 8 pin power connector.

 

I have an 8 pin power connector on my Corsair labeled CPU,  HX850 but the shape of the pins (square or rounded)  is not the same.

 

I can break the 8 pin into a 4 pin and there is one position starting with pin 1 where the shapes are right.

In the attached photo I can fit the left half (4) of the connector at the top to the right half of ATX12V1.

 

But It seems very strange that there is a shape mismatch.

 

Any thoughts or clues? What am I missing?

 

Thanks,

 

Gregg

 

 

 

 

[seon123]

You can fit a rounded peg into a square hole. Just plug it in, stop overthinking it

[Fasauceome]

CPU power is ATX 12v is EPS is 4+4, etc etc. 

 

You have the appropriate connector for the appropriate socket so go for it. The PSU and the motherboard both adhere to the ATX standard. 

[Guest]

31 minutes ago, Gregg140 said:

Hello,

 

I'm trying to build a Desktop using the Asrock Z590M Pro4 motherboard and a Corsair HX850 PSU.

 

The problem is with the 8 pin EPS power connection on the MB (labeled ATX12 V1)  It's an 8 pin power connector.

 

I have an 8 pin power connector on my Corsair HX850 but the shape of the pins (square or rounded)  is not the same.

 

I can break the 8 pin into a 4 pin and there is one position starting with pin 1 where the shapes are right.

In the attached photo I can fit the left half (4) of the connector at the top to the right half of ATX12V1.

 

But It seems very strange that there is a shape mismatch.

 

Any thoughts or clues? What am I missing?

 

Thanks,

 

Gregg

 

 

 

 

It's fine.  You're overthinking it.

 

[Gregg140]

Ok thanks all. I called Corsair and they said the same thing. They claim the shape of the pins is a holdover from bygone days and

don't really matter so long as you don't try to force a square pin into a rounded hole.

 

As for "overthinking" well....I'm careful about things and if it doesn't look like both sides match I stop and check.

 

Better than frying an expensive MB.

 

I'll be firing it up today.   We'll see how it goes.

 

[Gregg140]

System booted fine and is running well.

 

Thanks, everyone, for your help

 

[Guest]

6 hours ago, Gregg140 said:

Ok thanks all. I called Corsair and they said the same thing. They claim the shape of the pins is a holdover from bygone days

 

uhh... not quite.

 

If you split the 8 into two 4's, the 4-pin needs those "D" shaped pins in order to fit into the motherboard.