F5F Stay Refreshed Hardware Desktop The ROG crosshair X670E hero question has been resolved.

The ROG crosshair X670E hero question has been resolved.

The ROG crosshair X670E hero question has been resolved.

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xBohmaNx
Member
123
12-04-2022, 01:33 AM
#1
Hello fellow members, I hope you're well. I'm planning a new PC build because my current one is over seven years old and is becoming slower. I'm considering a motherboard for this project, as mentioned in the title. I noticed some connectors on the board that are confusing me. Could anyone clarify what the 6-pin connector serves under the 24-pin one? Also, would the RM850x motherboard be compatible with it?
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xBohmaNx
12-04-2022, 01:33 AM #1

Hello fellow members, I hope you're well. I'm planning a new PC build because my current one is over seven years old and is becoming slower. I'm considering a motherboard for this project, as mentioned in the title. I noticed some connectors on the board that are confusing me. Could anyone clarify what the 6-pin connector serves under the 24-pin one? Also, would the RM850x motherboard be compatible with it?

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Loyal_KindTPN
Junior Member
35
12-10-2022, 01:53 AM
#2
Welcome to the Forums! It's a supplemental PCIe 6 pin. It's there to support additional power delivery for the USB C ports if you want fast charging capabilities: Front Panel USB 3.2 Gen 2x2 with Quick Charge 4+ Support - Support: up to 60W charging* - Output: 5/9/15/20V max. 3A, PPS:3.3–21V max. 3A - Compatible with QC 4.0/3.0/2.0, PD3.0 and PPS * To support 60W, please install the power cable to 6-pin PCIe power connector or can only support 27W It's not required, but if you've got a spare 6+2 left over, you can run it.
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Loyal_KindTPN
12-10-2022, 01:53 AM #2

Welcome to the Forums! It's a supplemental PCIe 6 pin. It's there to support additional power delivery for the USB C ports if you want fast charging capabilities: Front Panel USB 3.2 Gen 2x2 with Quick Charge 4+ Support - Support: up to 60W charging* - Output: 5/9/15/20V max. 3A, PPS:3.3–21V max. 3A - Compatible with QC 4.0/3.0/2.0, PD3.0 and PPS * To support 60W, please install the power cable to 6-pin PCIe power connector or can only support 27W It's not required, but if you've got a spare 6+2 left over, you can run it.

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JokerFame
Senior Member
670
12-16-2022, 09:46 PM
#3
Good day! Your response is clear. It seems the setup isn't strictly mandatory. Let me know if you'd like to discuss further. I'm ready for your next question about the AMD Ryzen 7 9800X3D.
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JokerFame
12-16-2022, 09:46 PM #3

Good day! Your response is clear. It seems the setup isn't strictly mandatory. Let me know if you'd like to discuss further. I'm ready for your next question about the AMD Ryzen 7 9800X3D.

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AppleDude360
Junior Member
29
12-16-2022, 10:13 PM
#4
For the 9800X3D you can use a single connector. If you plan to upgrade to a Ryzen 9, it might be better to have two, since those can surpass the connector’s 300W limit if you remove the power restrictions.
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AppleDude360
12-16-2022, 10:13 PM #4

For the 9800X3D you can use a single connector. If you plan to upgrade to a Ryzen 9, it might be better to have two, since those can surpass the connector’s 300W limit if you remove the power restrictions.

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GodSaidHi
Junior Member
49
12-16-2022, 10:34 PM
#5
I mainly rely on a boosted 9800X3D that runs with just one 8-pin EPS CPU power cable. That connector can handle more heat than the processor requires.
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GodSaidHi
12-16-2022, 10:34 PM #5

I mainly rely on a boosted 9800X3D that runs with just one 8-pin EPS CPU power cable. That connector can handle more heat than the processor requires.

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ricby
Senior Member
681
12-16-2022, 11:46 PM
#6
Thanks for the helpful responses from @YoungBlade and @Hinjima! It really made a difference.
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ricby
12-16-2022, 11:46 PM #6

Thanks for the helpful responses from @YoungBlade and @Hinjima! It really made a difference.

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xImFizzy
Member
213
12-17-2022, 02:19 AM
#7
I checked reliable sources and specifications, confirming that 300W is the maximum for an 8-pin EPS connector.
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xImFizzy
12-17-2022, 02:19 AM #7

I checked reliable sources and specifications, confirming that 300W is the maximum for an 8-pin EPS connector.

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_Cupcake_Face_
Junior Member
3
12-17-2022, 07:42 AM
#8
The information appears quite high. Since the 12VHPWR connector isn't notably larger, and can reportedly support up to 600W on thinner cables, I didn’t have much doubt. I assumed the previous 4-pin setup was around 150W, so doubling would make sense. Other sources suggest around 225W, which seems more plausible. I wouldn’t advise using a single cable for a modern Ryzen 9 or Core i9, but it’s acceptable for a Ryzen 7.
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_Cupcake_Face_
12-17-2022, 07:42 AM #8

The information appears quite high. Since the 12VHPWR connector isn't notably larger, and can reportedly support up to 600W on thinner cables, I didn’t have much doubt. I assumed the previous 4-pin setup was around 150W, so doubling would make sense. Other sources suggest around 225W, which seems more plausible. I wouldn’t advise using a single cable for a modern Ryzen 9 or Core i9, but it’s acceptable for a Ryzen 7.

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CyberPhoenix
Member
167
12-17-2022, 07:47 AM
#9
The 6-pin header you highlighted isn’t the standard ATX power connector, but rather an optional PCIe/Supplemental power port. Some premium boards add it for added stability with multiple GPUs or heavy PCIe usage. For a basic single-GPU rig, you can skip it and the system will still function. The Corsair RM850x works perfectly with the Crosshair X670E Hero. An 850W supply is more than enough for a 7950X plus top-tier GPU, and because it’s modular, you’ll have the usual 24-pin ATX, 8-pin EPS, plus extra PCIe 8 pins. In summary: connect the standard 24-pin and 8-pin EPS for your CPU as normal. Use the extra 6-pin PCIe header only if you intend to run several GPUs or heavy PCIe workloads. The RM850x can handle this configuration without trouble.
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CyberPhoenix
12-17-2022, 07:47 AM #9

The 6-pin header you highlighted isn’t the standard ATX power connector, but rather an optional PCIe/Supplemental power port. Some premium boards add it for added stability with multiple GPUs or heavy PCIe usage. For a basic single-GPU rig, you can skip it and the system will still function. The Corsair RM850x works perfectly with the Crosshair X670E Hero. An 850W supply is more than enough for a 7950X plus top-tier GPU, and because it’s modular, you’ll have the usual 24-pin ATX, 8-pin EPS, plus extra PCIe 8 pins. In summary: connect the standard 24-pin and 8-pin EPS for your CPU as normal. Use the extra 6-pin PCIe header only if you intend to run several GPUs or heavy PCIe workloads. The RM850x can handle this configuration without trouble.