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Can I use 2 or 3 PCI-e cables to power the RTX 4090 instead of 4 PCI-e cables?

Mr4nT4r_KSA
By Mr4nT4r_KSA
in Power Supplies
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Posted

Can I use 2 or 3 PCI-e cables with pigtail connector to connect the +12VHPWR 4x 8 Pin PCI-e cable

 

I have Corsair RM1000x (2021 triangular grille) and only have 3 PCI-e 6+2 cables with pigtail connector

 

edit: Which PCI-e should I use or doesn't matter

 

image.thumb.jpeg.88eca0fcc6686fec82cefb657f35683d.jpeg

CPU: AMD Ryzen 7 5800X3D                                  RAM: G.SKILL Trident Z Neo 3600Mhz 32GB (2 x 16GB) F4-3600C14D-32GTZNA Timing 14-14-14-34

Mobo: ASUS TUF GAMING B550-PLUS                 GPU: Asus ROG Strix RTX 4090 OC Edition

Case: Fractal Design Torrent                                  Storage: WD_Black 2TB SN850 NVMe

PSU: Corsair RM1000X 2021 (triangular grille)

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Posted

You can use the pigtail connectors. It doesn't matter which of the PCIe/CPU connectors on the PSU that you use, they're all the same.

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Arctic Freezer 34 eSports | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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1 hour ago, Spotty said:

You can use the pigtail connectors. It doesn't matter which of the PCIe/CPU connectors on the PSU that you use, they're all the same.

Isn't this going to burn the PCI-e on the PSU?

CPU: AMD Ryzen 7 5800X3D                                  RAM: G.SKILL Trident Z Neo 3600Mhz 32GB (2 x 16GB) F4-3600C14D-32GTZNA Timing 14-14-14-34

Mobo: ASUS TUF GAMING B550-PLUS                 GPU: Asus ROG Strix RTX 4090 OC Edition

Case: Fractal Design Torrent                                  Storage: WD_Black 2TB SN850 NVMe

PSU: Corsair RM1000X 2021 (triangular grille)

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Just now, Mr4nT4r_KSA said:

Isn't this going to burn the PCI-e on the PSU?

The RMx uses HCS terminals and 16 AWG wires to the first connector, so it's fine

:)

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29 minutes ago, seon123 said:

The RMx uses HCS terminals and 16 AWG wires to the first connector, so it's fine

 

but in Corsair Type 4 cables it says 16 AWG/ 18 AWG  so which one?

 

image.thumb.png.4cfb7b31efa8facb04b45b04fb4a8347.png

CPU: AMD Ryzen 7 5800X3D                                  RAM: G.SKILL Trident Z Neo 3600Mhz 32GB (2 x 16GB) F4-3600C14D-32GTZNA Timing 14-14-14-34

Mobo: ASUS TUF GAMING B550-PLUS                 GPU: Asus ROG Strix RTX 4090 OC Edition

Case: Fractal Design Torrent                                  Storage: WD_Black 2TB SN850 NVMe

PSU: Corsair RM1000X 2021 (triangular grille)

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1 minute ago, Mr4nT4r_KSA said:

but in Corsair Type 4 cables it says 16 AWG/ 18 AWG  so which one?

It's 16AWG to the first connector then 18AWG to the second connector.

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Arctic Freezer 34 eSports | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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1 minute ago, Spotty said:

It's 16AWG to the first connector then 18AWG to the second connector.

it's fine for the 16AWG but what about 18AWG second connector?

CPU: AMD Ryzen 7 5800X3D                                  RAM: G.SKILL Trident Z Neo 3600Mhz 32GB (2 x 16GB) F4-3600C14D-32GTZNA Timing 14-14-14-34

Mobo: ASUS TUF GAMING B550-PLUS                 GPU: Asus ROG Strix RTX 4090 OC Edition

Case: Fractal Design Torrent                                  Storage: WD_Black 2TB SN850 NVMe

PSU: Corsair RM1000X 2021 (triangular grille)

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45 minutes ago, Mr4nT4r_KSA said:

it's fine for the 16AWG but what about 18AWG second connector?

The cable to the second connector only needs to carry the power for the second connector. 18AWG is fine.

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Arctic Freezer 34 eSports | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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3 minutes ago, Spotty said:

The cable to the second connector only needs to carry the power for the second connector. 18AWG is fine.

last question is cablemod  8 pin PCI-e to 8 pin PCI-e 16AWG or 18AWG?

CPU: AMD Ryzen 7 5800X3D                                  RAM: G.SKILL Trident Z Neo 3600Mhz 32GB (2 x 16GB) F4-3600C14D-32GTZNA Timing 14-14-14-34

Mobo: ASUS TUF GAMING B550-PLUS                 GPU: Asus ROG Strix RTX 4090 OC Edition

Case: Fractal Design Torrent                                  Storage: WD_Black 2TB SN850 NVMe

PSU: Corsair RM1000X 2021 (triangular grille)

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just as a clarify I'm connecting 3 cables, last one daisy chained and from what I understand from you Spotty and seon123 it's safe to do for long time 

CPU: AMD Ryzen 7 5800X3D                                  RAM: G.SKILL Trident Z Neo 3600Mhz 32GB (2 x 16GB) F4-3600C14D-32GTZNA Timing 14-14-14-34

Mobo: ASUS TUF GAMING B550-PLUS                 GPU: Asus ROG Strix RTX 4090 OC Edition

Case: Fractal Design Torrent                                  Storage: WD_Black 2TB SN850 NVMe

PSU: Corsair RM1000X 2021 (triangular grille)

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