Question Do I need to hook up all the connectors on my Asus Prime X570-P?

[kirkdickinson]

I ordered the parts last week for a Ryzen build. I started putting it together and the Powersupply doesn't have enough connectors to hook up all the power connectors on the Motherboard. It is an Asus Prime X570-P motherboard and a Corsair CX450 Power Supply. I have a 24 pin connector and the 8 pin connector, but there is a 4 pin connector that I don't have a connector for.

 

[13Gigatons]

Not sure what the whole truth is on this. I ended up ordering a new Powersupply with all the connectors and it works like a charm. I never did even power up the other one. I just sent it back. Here is what I used that works fine:

Are you a human?

www.newegg.com

I really hate the split design whether it's 6+2 or 4+4 it's just harder to get the cables out of the way. Can also be harder to plug the damn thing in.

 

[VirtualLarry]

@VirtualLarry do I remember you buying some rosewill stuff? Any thoughts on the subject?

Had a Rosewill Capstone 650W 80Plus Gold, 5-year warranty, Jpn caps, fail in less than a year under mild usage.

Currently using a Rosewill Valens 600W 80Plus Gold in my 4th-tier mining rig with a Sapphire Nitro+ (8+6 pin), and a RX 470 (8 pin), with an additional cable to tee off a 6-pin PCI-E from the CPU 8-pin power connector. (CPU is a G4560, and not loaded, so maybe 35W power draw from the CPU, if that.)

 

[abbcccus]

I'm running a 3900X in an Asus Tuf Gaming with only the eight pin attached. It's overclocked to 4.25 on the first ccd and 4.4 on the second. The limiting factor on my overclock is my cooling as I tried 4.5 and 4.45 on the good ccd and the voltage required to get there wasn't manageable with my decidedly mediocre AIO.

So my experience has been that only the eight pin has been needed - even for a pretty decent overclock on a 3900X. Oh yeah, my setup / overclock was done on an ancient OCZ PSU and it's now running off a Seasonic PSU now that it's in service and neither PSU had any issues running the cpu with only the eight pin attached. The funny thing is that both of them HAVE that extra four pin, but they're both modular and I'm too lazy to go up in the attic, find the boxes, and dig out the cables since I'm not having any issues. Obviously, ymmv.

 

[racdavies]

My 3800x would not power without the additional cable attached.
I was using a seasonic 850 gold power supply.
I couldn’t find the 4 pin connector so I tried without. Zero power.

I recently upgraded to an Asus prime x570pro and a Ryzen 7 3800x and im using just the 8 pin without issue, im also running 32gig Corsair Dominator 3600 and my Msi 2080super xc, as well as a Samsung 970pro 1tb nvme and a Corsair MP600 2tb with 2 Sandisk ultra II 960gb ssd`s, ive been running my new setup for 3 days and all`s good.

 

[Fanatical Meat]

I recently upgraded to an Asus prime x570pro and a Ryzen 7 3800x and im using just the 8 pin without issue, im also running 32gig Corsair Dominator 3600 and my Msi 2080super xc, as well as a Samsung 970pro 1tb nvme and a Corsair MP600 2tb with 2 Sandisk ultra II 960gb ssd`s, ive been running my new setup for 3 days and all`s good.

Weird how some work & others don’t.
Motherboard thing or a chip thing or a little bit of both.
Mine absolutely would not power without the additional power attached.

 

[13Gigatons]

Weird how some work & others don’t.
Motherboard thing or a chip thing or a little bit of both.
Mine absolutely would not power without the additional power attached.

For the 3900 I'd definitely use the extra 4-pin connector and if I were trying to overclock. Some boards come with a warning about over heating. So it seems a safety issue.

 

[sdifox]

More copper from the psu to the mb is always a good thing.

 

[Belkov]

Hi.
This is an old thread but i just bought asus prime x570-p paired with 3600x.

My system works just fine with only 8 pin connected - using Super Flower Leadex III 650 Gold. In my knowledge the additional 4 pin is for upper tier CPUs and higher clocks.

 

[rivolver]

the 4 pin is extra power if you start pulling heavy loads to help keep from burning up the 8 pin.

i'm running ryzen 5 3600 oc on an asus prime x-570 p with the 24 pin plugged in and the 8 pin. 1 256 gb samsung ssd ,1 baricuda 1 tb hdd, gtx 1060 gpu.wraith fan for cpu. 5 rgb fans, 2 led strips and 1 exhaust fan. on a 600w psu and it post and runs like a cadillac

 

[rivolver]

also buy a modular psu and get whatever pin you need

 

[alexbirdie0]

3950x on asus crosshair viii hero wifi: Only 8-pin connector is enough. additional 4-pin-connector only for harcore-overclocking or more than 1 GPU.

Works since January absolutly flawlessly for me.

 

[MadScientist]

Not a bad question from the op, its one that has been crossing my mind as well. I got a 650w Seasonic Focus with only a single 8 pin. Been going back and forth between a 3900x/9900k build and depending on motherboard the mass majority got the dual plug ins. For Z390 it seems to be a stock config while B450 and some Z370 do have only single 8 pin.

Not like my psu is trash or really needs a upgrade, either cpu stock which i plan to keep it at should easily work with a 650w and any single top tier card. PSU is less then a year old btw so its relatively new.

Has anyone confirmed posting and working motherboards with only a single 8 pin? Some finds on google suggest it should but no one has concrete proof.It's almost like a trade secret.

I'm running a 3600 on an Asrock B550 Phantom Gaming 4 MB with a 5 year old Seasonic M12II 620 Bronze PSU with only an 8 pin cable. It was leftover from my last build. The newer EVO version of this PSU has the extra 8/4 pin cable. It booted up ok. I oc'ed the 3600 to 4.2Ghz at a bios vcore of 1.2875V, 1.256V load. So far no shutdowns or reboots. I have 2 SSD SATA drives, an EVGA Geforce GTX 1660 graphic card, 4 sticks (32Gb) of Corsair Vengeance LPX 3600 ram, 3 case fans, and a be quiet Pure Rock 2 CPU cooler with 2 fans.
It does help that the 3600 has a 65W TDP.
If I decide to upgrade to a higher TDP CPU I also have an EVGA 650 GQ PSU I purchased on sale last year that has 2 - 8pin (4+4) cables.

 

[Fanatical Meat]

Must have something to do with the CPU & the motherboard.
My 3800x would not power on without the extra cable attached.

 

[MadScientist]

Must have something to do with the CPU & the motherboard.
My 3800x would not power on without the extra cable attached.

The TDP for the 3800X is 105W. Could be one of the reasons why.

 

[Laurence1]

I ordered the parts last week for a Ryzen build. I started putting it together and the Powersupply doesn't have enough connectors to hook up all the power connectors on the Motherboard. It is an Asus Prime X570-P motherboard and a Corsair CX450 Power Supply. I have a 24 pin connector and the 8 pin connector, but there is a 4 pin connector that I don't have a connector for.
View attachment 14478

 

[Laurence1]

I have an Asus TUF gaming x570-Pro and a Corsair TX750M power supply. Same problem 8 pin and 4 pin connectors. I am in Canada. Called Corsair in the US and explained my problem. They send me the required cable no charge. Was here in 3 or 4 days.

 

[Iron Woode]

I also have the Asus Prime X570-P as in my sig and use only the 8 pin connector. Everything runs fine.

 

[Fanatical Meat]

So strange how there appears to be no pattern to who needs the extra 4 pin connected.
I wonder if it has to do with the cpu like some bins need it and others do not.
My 3800x on a x570 steel legend would not post without the other cable attached.

Edit: oops see above

 

[CP5670]

I ran my 10700K/Z490 with the 8pin alone and it worked fine with a mild 5ghz OC. I added the 4pin later on since my TX850M had the plug but didn't include the cable, but a cable from Amazon worked. The 8pin alone should be plenty for AMD CPUs, but some boards may be designed to require it to boot.

 

[BonzaiDuck]

Just curious. It was a few years back, but I was researching the re-badging of Seasonic PSUs, and I discovered a review of what may have been the EVGA SuperNova or a recent ancestor. And I THINK the review noted the true origin of that PSU -- namely Seasonic. Does anyone know, or can anyone confirm this for the PSU kirkdickenson linked?

 

[Iron Woode]

Just curious. It was a few years back, but I was researching the re-badging of Seasonic PSUs, and I discovered a review of what may have been the EVGA SuperNova or a recent ancestor. And I THINK the review noted the true origin of that PSU -- namely Seasonic. Does anyone know, or can anyone confirm this for the PSU kirkdickenson linked?

if you mean the EVGA SuperNOVA 650 G+, it is a Superflower design.

 

[alexbirdie0]

Asus crosshair viii hero with 3950x.

Works great since about a year with only 8-pin-cpu-connector ( although board does have an additional 4-pin-connector). But I am running it within specs. Could be, with heavy overclocking, the additional 4-pin might be neccessary,too.

 

[repoman0]

ASUS Prime X570 Pro with a 5900X here and only the 8-pin connector — no issues. It’s poor board design to require both connectors to POST because that 8 pin connector is specced to 225 W, a very comfortable safety margin over what most people will reasonably run.

 

[Shmee]

My board has 2 8 pins I believe, I don't think I tried it with just one cable though. As mentioned, realistically just about any Ryzen CPU shouldn't need more than a single 8 pin.

 

[Huldrich]

Hello, I bought a ASUS PRIME X570-P mainboard with a Ryzen 9 5950X, M.2 SSD, SATA SSD, 4 TB HDD, BluRay burner and GeForce GT 1030. I build the whole thing together today, but when I turn on power the fans turn just some seconds. I guess that from what I have read here, this is because I did not plug in the P4/P8 cables but only the EATXPWR cable. Hope this has made no damage...
The problem is I have no idea how to use the P4/P8 output: I have a bequit! Straight Power 11 PSU with 450W. There is a 10 pin output on it, even though only 8 are used. At the other end of the cable that can plugged into it there are two 4 pins cables labeled CPU1-P4 and CPU2-P8. Where must I connect these on the mainboard? I see only the 4 pin plug in, the other next to it has 8 pins. I am not sure if it is possible to plug them into it, even less if it will work.
Otherwise, there are also 2 cables with 12 and 8 pins at the ends, respectively. They can be connected to the PSU on plugs labeled PCIe. What are these thought for?
The last time I build a PC was 12 years ago, it seems that some things have changed...
Can anyone help please?