12900k installation on msi Pro

[Tireofchanginglga]

Hi, i need help.

i  have 12900k, but 

i have:

- psu hx850 platinum

- msi pro z690-a

- vga 3080 ti

- 64 (4x16) ddr 4 3600mhz corsair

- cooler( gammaxx l240 a-rgb )

 

Is it work?,

 

im on my way building, but im confuse. I see 2x8pin cpu power.

 

should i use only first 8pins, cuz i see on psu, only have 1(4+4) cpu connector,

 

Cpu 4+4 and vga 6+2 in Single no more slot in single.

should i put second 4+4  power cpu, in 12v?

Or can i use pci cable gpu on cpu pin power?

 

thanks.

[Kilrah]

-> Moved to CPUs, Motherboards and Memory

 

You only need one 4+4, the 2nd is only there for extreme overclocking.

[IkeaGnome]

1 minute ago, Tireofchanginglga said:

im on my way building, but im confuse. I see 2x8pin cpu power.

 

should i use only first 8pins, cuz i see on psu, only have 1(4+4) cpu connector,

It separated as 3:

- single

- 12v

- multiple

The second set of 8 pin is for overclocking. You likely won't need it.

1 minute ago, Tireofchanginglga said:

should i put second 4+4  power cpu, in 12v?

In what 12v?

1 minute ago, Tireofchanginglga said:

Or can i use pci cable gpu on cpu pin power?

No. DO NOT DO THIS. They are very different and will break things if you put them in the wrong spot. 

[Helpful Tech Witch]

11 minutes ago, Kilrah said:

You only need one 4+4, the 2nd is only there for extreme overclocking.

 

11 minutes ago, IkeaGnome said:

The second set of 8 pin is for overclocking. You likely won't need it.

14 minutes ago, Tireofchanginglga said:

No.

This is a 12900k were talking about, the powerhog that it is.

In a blender load, the 12900k pulls nearly 250w, which is more than the 235w that a single 8 pin can provide.

That means you could conciveably have a power spike that will trip the ocp in a gaming workload

 

[Tireofchanginglga]

6 minutes ago, IkeaGnome said:

In what 12v?

Ah sorry. my bad,

That image you given, make me understand, no more cpu power pin here.  Thanks for quick answer and good explain.

 

[IkeaGnome]

6 minutes ago, HelpfulTechWizard said:

No.

This is a 12900k were talking about, the powerhog that it is.

In a blender load, the 12900k pulls nearly 250w, which is more than the 235w that a single 8 pin can provide.

That means you could conciveably have a power spike that will trip the ocp in a gaming workload

I forgot how much power the 12900k can draw. 

[Tireofchanginglga]

12 minutes ago, HelpfulTechWizard said:

 

No.

This is a 12900k were talking about, the powerhog that it is.

In a blender load, the 12900k pulls nearly 250w, which is more than the 235w that a single 8 pin can provide.

That means you could conciveably have a power spike that will trip the ocp in a gaming workload

 

So i need to upgrade my psu

[Helpful Tech Witch]

7 minutes ago, Tireofchanginglga said:

So i need to upgrade my psu

No?

Tha hx850 should be fine, can power 5 8 pin gpu and 8 pin eps cables, and comes with the cables to do that, 3 pcie and 2 8 pin eps.

Just use both eps

[Kilrah]

33 minutes ago, HelpfulTechWizard said:

No.

This is a 12900k were talking about, the powerhog that it is.

In a blender load, the 12900k pulls nearly 250w, which is more than the 235w that a single 8 pin can provide.

That means you could conciveably have a power spike that will trip the ocp in a gaming workload

Sources don't agree with each other but I've seen 300W ratings for 8-pin. I've been running my OCd 5960X that draws about 290W at full load on a single 8-pin for 7 years. 

Also OCP doesn't care about the number of connectors, only rail separation if any.

[Tireofchanginglga]

10 minutes ago, HelpfulTechWizard said:

No?

Tha hx850 should be fine, can power 5 8 pin gpu and 8 pin eps cables, and comes with the cables to do that, 3 pcie and 2 8 pin eps.

Just use both eps

Can i marked this as solutions?.

 

3 minutes ago, Kilrah said:

Sources don't agree but I've seen 300W ratings for 8-pin. I've been running my OCd 5960X that draws about 290W at full load on a single 8-pin for 7 years. 

 i read a few topic different psu output giving different W. Will try benchmarking single then add more cable.,

[Helpful Tech Witch]

1 minute ago, Tireofchanginglga said:

Can i marked this as solutions?.

 

sure

[Kilrah]

If your PSU comes with 2 cables, which seems to be the case then use both. If not it wouldn't be a problem.

[Tireofchanginglga]

2 minutes ago, Kilrah said:

If your PSU comes with 2 cables, which seems to be the case then use both. If not it wouldn't be a problem.

Im not too smart as you guys, do know much about building computer, dont know how psu work, i see on psu only 1 with text "CPU 4 + 4" on it, i think another cable is only for backup if this one broken. And i see on image that ikegnome sent above, each pin different, and i think another 4+4 pin only only for another component,.but after i remove this cable from the psu pin, the rest available pin has the same house , omg how stupid i am ,.sorry