Corsair RM750x: Additional PSU cable

[LUK]

Hi,

i am in the process of upgrading my self-built rig. I am upgrading from i7 6700K to Ryzen 9 3900x.

My problem is this:
I built my rig in 2016 and bought a Corsair RM750x PSU for the system. At the time, this model included only one EPS 4+4 pin cable. The X570 MOBO has an 8-pin and a 4 pin socket. I want maximum stability so I would like to have the additiona 4-pin even if(?) i can run the system with 8-pin only, but i don't know where to get it. I tried CableMod, they have a minimum order of 70 EUR (I live in Europe) and the Corsair site doesn't have a compatible extra and most of them are out of stock anway.

I am aware that cables from other brands or even other series within Corsair are not compatible so I am looking for help/ideas please.

Thank you in advance.

[Fasauceome]

9 minutes ago, LUK said:

I want maximum stability

you will have it with an 8 pin only. The difference in stability does not manifest itself until you are doing extreme overclocking with liquid nitrogen, and even then it's almost negligible.

[Guest]

It is completely pointless. Any board review you see on these will echo that sentiment. I have a 3900X and even when I use benchmarking clocks of 4.4 on all cores, it is completely fine.

[LUK]

12 minutes ago, Fasauceome said:

you will have it with an 8 pin only. The difference in stability does not manifest itself until you are doing extreme overclocking with liquid nitrogen, and even then it's almost negligible.

 

11 minutes ago, Den-Fi said:

It is completely pointless. Any board review you see on these will echo that sentiment. I have a 3900X and even when I use benchmarking clocks of 4.4 on all cores, it is completely fine.

 

 

If it's true that AMD measures TDP at boost clock, then i guess i really don't need it for 10 W TDP difference (95 vs 105). The wonders of a dye shrink i guess.

 

Thank you ever so much.

[Guest]

2 minutes ago, LUK said:

 

 

 

If it's true that AMD measures TDP at boost clock, then i guess i really don't need it for 10 W TDP difference (95 vs 105). The wonders of a dye shrink i guess.

 

Thank you ever so much.

No prob! Personally, it drives me nuts that they even include it because I hate having the socket empty on the mobo. Looks so wrong to me.

[Mathieu9836]

A 8 pin connector is good enough for like 380watts as Buildzoid stated IIRC. So you will probably be able to kill anything on your board before the connector melt.

[FALC0N]

On 9/10/2019 at 8:18 AM, LUK said:

Hi,

i am in the process of upgrading my self-built rig........

 

Your rig built itself?  That's extremely impressive!  

[LUK]

8 hours ago, FALC0N said:

 

Your rig built itself?  That's extremely impressive!  

 

OOOOOOOOOOOOOOOOOOOPS.

 

I'm not a native speaker, obviously, my bad.