2 4+4 cpu connector

[Misakiii]

Hello,

 

My power supply only has 3 6+2 PCI-E or 4+4 CPU connections and two of them are already used for my gpu which needs 3 8 pin connectors which leaves me with one of the 6+2 PCI-E or 4+4 CPU for my cpu, if I use one 4+4 CPU connector will it be fine or do I need to use both?

 

My motherboard is the ASUS ROG STRIX Z690-A and cpu is i9-12900k, will everything be fine if I only use one 4+4 connector and if not is my only option to buy a completely new power supply?

 

[--SID--]

What's the brand and model of your PSU and GPU?

[drdrewnatic]

Do not install a PCI-E PSU connector for your CPU. It WILL damage it. Only plug in cables designed for their intentions.

 

8 pin should be fine if your not overclocking.

[Pandur]

5 minutes ago, drdrewnatic said:

Do not install a PCI-E PSU connector for your CPU. It WILL damage it. Only plug in cables designed for their intentions.

 

8 pin should be fine if your not overclocking.

Luckily it won't fit either. Unless you cut some tabs with a knife or use a hammer.

16 minutes ago, Misakiii said:

Hello,

 

My power supply only has 3 6+2 PCI-E or 4+4 CPU connections and two of them are already used for my gpu which needs 3 8 pin connectors which leaves me with one of the 6+2 PCI-E or 4+4 CPU for my cpu, if I use one 4+4 CPU connector will it be fine or do I need to use both?

 

My motherboard is the ASUS ROG STRIX Z690-A and cpu is i9-12900k, will everything be fine if I only use one 4+4 connector and if not is my only option to buy a completely new power supply?

 

For normal use it will most likely be enough with one 4+4. But if you do some overclocking you might run out of juice. Also depends on what kind of PSU you have in the first place.

[Misakiii]

7 minutes ago, --SID-- said:

What's the brand and model of your PSU and GPU?

PSU: Corsair RM850

GPU: Rog Strix 3080

[-rascal-]

1 minute ago, Misakiii said:

PSU: Corsair RM850

GPU: Rog Strix 3080

 

As mentioned, DO NOT try to force a PCI-E 8-pin (6+2) connectors in the 8-pin EPS motherboard socket.

You can KILL the CPU and/or motherboard.

 

A single 8-pin EPS connector can supply up to 384W to the CPU.

That is plenty with room to spare for a i9-12900K, even with overclocking.

You don't need....700W+ for the CPU, unless you are trying to do some kind of Liquid Nitrogen, record-smashing overclock.

[Misakiii]

9 minutes ago, drdrewnatic said:

Do not install a PCI-E PSU connector for your CPU. It WILL damage it. Only plug in cables designed for their intentions.

 

8 pin should be fine if your not overclocking.

 

4 minutes ago, Pandur said:

Luckily it won't fit either. Unless you cut some tabs with a knife or use a hammer.

For normal use it will most likely be enough with one 4+4. But if you do some overclocking you might run out of juice. Also depends on what kind of PSU you have in the first place.

correct me if I'm wrong but aren't all three circled ports mean it can either work for one 6+2 PCIe OR 4+4 CPU?

 

because I used the two ports in the bottom left for my gpu (3 8pin connectors) and want to use the one in the top left for my motherboard (leaving me with no remaining options for one more (4+4 CPU pin)

[Pandur]

Just now, Misakiii said:

 

correct me if I'm wrong but aren't all three circled ports mean it can either work for one 6+2 PCIe OR 4+4 CPU?

 

because I used the two ports in the bottom left for my gpu (3 8pin connectors) and want to use the one in the top left for my motherboard (leaving me with no remaining options for one more (4+4 CPU pin)

Indeed. But the other end of the cable is not interchangable. They are physically different.

[Misakiii]

Just now, Pandur said:

Indeed. But the other end of the cable is not interchangable. They are physically different.

hahaha yeah I'm aware I can't force the other end of the cable into either the motherboard or gpu, thanks for clarifying.

[drdrewnatic]

8 minutes ago, Misakiii said:

 

correct me if I'm wrong but aren't all three circled ports mean it can either work for one 6+2 PCIe OR 4+4 CPU?

 

because I used the two ports in the bottom left for my gpu (3 8pin connectors) and want to use the one in the top left for my motherboard (leaving me with no remaining options for one more (4+4 CPU pin)

Just looking at the back, it appears that these two connectors should also work. Just double check the manual.

[Misakiii]

5 minutes ago, -rascal- said:

 

As mentioned, DO NOT try to force a PCI-E 8-pin (6+2) connectors in the 8-pin EPS motherboard socket.

You can KILL the CPU and/or motherboard.

 

A single 8-pin EPS connector can supply up to 384W to the CPU.

That is plenty with room to spare for a i9-12900K, even with overclocking.

You don't need....700W+ for the CPU, unless you are trying to do some kind of Liquid Nitrogen, record-smashing overclock.

okay thank you so much this has cleared up a lot since I honestly don't know how many watts are needed, im definitely not going for any crazy record-smashing overclock I probably won't even try to overclock so shouldn't have any power problems. Out of curiosity for the future if I ever decide to research into overclocking and attempt to overclock my cpu will 1 pin still be fine for low level overclocking?

[Pandur]

Looking at that picture, there should be two more ports you can use. Just double-check the manual. But they should be two more of the same 6+2 / 4+4 outputs.

 

Edit: I see I was beaten to the punch. Well played sir!

Edited May 20, 2022 by Pandur

[Misakiii]

1 minute ago, drdrewnatic said:

Just looking at the back, it appears that these two connectors should also work. Anybody correct me if I'm wrong.

ohhh now that I look at it, the ones circled red do look exactly the same as the green so if I was to buy a 4+4 CPU cable ill be able to put it in the second cpu connector, I just assumed that the ones circled red are more peripheral and sata ports didn't pay too much attention to the actual holes. 

 

Thanks a lot ^.^

[drdrewnatic]

1 minute ago, Misakiii said:

ohhh now that I look at it, the ones circled red do look exactly the same as the green so if I was to buy a 4+4 CPU cable ill be able to put it in the second cpu connector, I just assumed that the ones circled red are more peripheral and sata ports didn't pay too much attention to the actual holes. 

 

Thanks a lot ^.^

You shouldn't have to buy any extra cables. Everything should have come in the box. I'd find that quite odd if there were cables missing.

[Misakiii]

Just now, drdrewnatic said:

You shouldn't have to buy any extra cables. Everything should have come in the box. I'd find that quite odd if there were cables missing.

Yeah it probably did come with the box however when I originally installed this power supply it was in my home country and I've left the box there so I'm just going to search on amazon for the cable. Is there anything specific I need to look out for or does any cable that's 8 pin on one end and 4+4 cpu on the other end fine?

[-rascal-]

9 minutes ago, Misakiii said:

okay thank you so much this has cleared up a lot since I honestly don't know how many watts are needed, im definitely not going for any crazy record-smashing overclock I probably won't even try to overclock so shouldn't have any power problems. Out of curiosity for the future if I ever decide to research into overclocking and attempt to overclock my cpu will 1 pin still be fine for low level overclocking?

 

Even if you decide to overclock, the single 8-pin EPS is already plenty.

According to reviews, even with overclock on air / water-cooling, the i9-12900K does not exceed ~300W.

That's not a small number, but that is well within the 384W the connector can supply.

[Pandur]

13 minutes ago, Misakiii said:

Yeah it probably did come with the box however when I originally installed this power supply it was in my home country and I've left the box there so I'm just going to search on amazon for the cable. Is there anything specific I need to look out for or does any cable that's 8 pin on one end and 4+4 cpu on the other end fine?

Not sure about the RM850, but larger Corsair PSU come with one 8-pin EPS and one 4+4 EPS in the box. Which does not help you now of course.

21 minutes ago, Misakiii said:

ohhh now that I look at it, the ones circled red do look exactly the same as the green so if I was to buy a 4+4 CPU cable ill be able to put it in the second cpu connector, I just assumed that the ones circled red are more peripheral and sata ports didn't pay too much attention to the actual holes. 

 

Thanks a lot ^.^

Peripheral outputs are 6 pin. GPU and EPS are 8 pin. On the PSU side.

15 minutes ago, Misakiii said:

Yeah it probably did come with the box however when I originally installed this power supply it was in my home country and I've left the box there so I'm just going to search on amazon for the cable. Is there anything specific I need to look out for or does any cable that's 8 pin on one end and 4+4 cpu on the other end fine?

Any peripheral or GPU/EPS cable, for that PSU, have to be Corsair type 3 compatible. Do not use any cable that physically fit, they can be wired differently.

[Misakiii]

9 minutes ago, Pandur said:

Not sure about the RM850, but larger Corsair PSU come with one 8-pin EPS and one 4+4 EPS in the box. Which does not help you now of course.

Peripheral outputs are 6 pin. GPU and EPS are 8 pin. On the PSU side.

Any peripheral or GPU/EPS cable, for that PSU, have to be Corsair type 3 compatible. Do not use any cable that physically fit, they can be wired differently.

Thank you for the extra clarification and explanation.

 

As for the cable I already bought one 8 Pin PCIe cable and it says its compatible with corsair but couldn't find anything saying its type 3? is there something in the cable itself I can read that will tell me its type 3 and its fine? I wouldn't like to switch on the pc and then something goes wrong because of a wrong cable xd.

 

This is the cable I already bought and have connected right now (haven't switched on the pc yet) https://www.amazon.co.uk/gp/product/B09P39L2MC/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

[Pandur]

10 minutes ago, Misakiii said:

Thank you for the extra clarification and explanation.

 

As for the cable I already bought one 8 Pin PCIe cable and it says its compatible with corsair but couldn't find anything saying its type 3? is there something in the cable itself I can read that will tell me its type 3 and its fine? I wouldn't like to switch on the pc and then something goes wrong because of a wrong cable xd.

 

This is the cable I already bought and have connected right now (haven't switched on the pc yet) https://www.amazon.co.uk/gp/product/B09P39L2MC/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

Going by the description that is a type 3 cable. Original Corsair cables says Type 3 on the PSU-side connector. And it was just the ATX cable that was changed from Type 3 to Type 4.

[drdrewnatic]

15 minutes ago, Misakiii said:

Thank you for the extra clarification and explanation.

 

As for the cable I already bought one 8 Pin PCIe cable and it says its compatible with corsair but couldn't find anything saying its type 3? is there something in the cable itself I can read that will tell me its type 3 and its fine? I wouldn't like to switch on the pc and then something goes wrong because of a wrong cable xd.

 

This is the cable I already bought and have connected right now (haven't switched on the pc yet) https://www.amazon.co.uk/gp/product/B09P39L2MC/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

I'd prefer going with first party replacement cables (https://www.corsair.com/uk/en/Categories/Products/Accessories-|-Parts/PC-Components/Power-Supplies/Type-3-Sleeved-Black-PCIe-Cable/p/CP-8920111) but like @Pandur said, this should be fine for plugging into your GPU.

[Misakiii]

5 minutes ago, Pandur said:

Going by the description that is a type 3 cable. Original Corsair cables says Type 3 on the PSU-side connector. And it was just the ATX cable that was changed from Type 3 to Type 4.

Just checked both the original cable that came with the psu and the cable I bought I wasn't able to find anything that says type 3 near the PSU-side connector on either cable, mind sending a photo of where its written? maybe I looked in the wrong place?

 

 

[Misakiii]

3 minutes ago, drdrewnatic said:

I'd prefer going with first party replacement cables (https://www.corsair.com/uk/en/Categories/Products/Accessories-|-Parts/PC-Components/Power-Supplies/Type-3-Sleeved-Black-PCIe-Cable/p/CP-8920111) but like @Pandur said, this should be fine for plugging into your GPU.

okay thank you if I decide to get another 8 pin to 4+4 CPU pin cable ill definitely get it from here instead but since I already got this cable and both of you said its fine ill just continue with it.

[Pandur]

4 minutes ago, Misakiii said:

Just checked both the original cable that came with the psu and the cable I bought I wasn't able to find anything that says type 3 near the PSU-side connector on either cable, mind sending a photo of where its written? maybe I looked in the wrong place?

Yes, seems it is less common than I was aware of. The only cables I have here with that mark on it, is from an individually sleeved Corsair upgrade cable kit. So you have to use any compatibility listing. And that Amazon cable says all RM models.

[Misakiii]

Just now, Pandur said:

Yes, seems it is less common than I was aware of. The only cables I have here with that mark on it, is from an individually sleeved Corsair upgrade cable kit. So you have to use any compatibility listing. And that Amazon cable says all RM models.

okay that reassured me since I couldn't find that on neither the cable I bought or the cables that came with the power supply, thank you so much