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Is 2x PCI-E cables fine for the 3x PCI-E 8pin adapter to run a RTX 4090?

Actual_Criminal
By Actual_Criminal
in Graphics Cards
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Posted

I am using 2x PCI-E cables to power the GPU. One of the cables has 2x PCI-E 8pins (6+2).

 

This should be fine right?

 

Full specs in sig.

20230330_030416.jpg

CPU: AMD Ryzen 9 16-core 5950X

CPU Cooler: Artic Freezer 2 AIO 360mm Radiator

Motherboard: Asus ROG Strix X570-F Gaming

Memory: 32GB (2x16GB) G.Skill Trident Z Royal 3600 MHz CL16

GPU: Nvidia RTX 4080 MSI Ventus 3X 16GB GDDR6X

Storage OS: 500GB Samsung 980 Pro Gen4 M.2 NVme SSD

Storage Games: 2TB Corsair MP600 Gen4 M.2 NVme SSD + 2TB Samsung 860 Evo SSD + 500GB Samsung 850 Evo SSD

Storage Misc: 2TB Seagate Barracuda Compute 7200 RPM

PSU: Corsair HX Platinum 1000W 80+

Case: Fractal Design Meshify S2 ATX Mid Tower

Monitor: Dell Alienware AW3423DW 175Hz 1ms 3440p (widescreen) HDR400 OLED panel 34"  + Asus PG258Q 240Hz 1ms 1080p G-Sync TN panel 24.5"

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Posted
10 minutes ago, Actual_Criminal said:

I am using 2x PCI-E cables to power the GPU. One of the cables has 2x PCI-E 8pins (6+2).

 

This should be fine right?

 

Full specs in sig.

20230330_030416.jpg

Yes. That is fine 🙂  High quality PSU's use proper quality daisy chain / pig tail cables.   Yours look like corsair?
Here is a video of my 4080 with Corsair Daisy Chains. I am currently running a 220mhz OC ( 3.06ghz ) on core and 1700mhz OC on memory, no crashes and pulling max power without issues.  I also ran my 2080 Super that I overclocked on one daisy chain cable too.  No issues.

 

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Posted

Not ideal, but should be fine. I ran pigtails on my 6800XT for a long time. 

Work Rigs - 2015 15" MBP | 2019 15" MBP | 2021 16" M1 Max MBP | Lenovo ThinkPad T490 |

 

AMD Ryzen 9 5900X  |  MSI B550 Gaming Plus  |  64GB G.SKILL 3200 CL16 4x8GB |  AMD Reference RX 6800  |  WD Black SN750 1TB NVMe  |  Corsair RM750  |  Corsair H115i RGB Pro XT  |  Corsair 4000D  |  Dell S2721DGF  |
 

Fun Rig - AMD Ryzen 5 5600X  |  MSI B550 Tomahawk  |  32GB G.SKILL 3600 CL16 4x8GB |  AMD Reference 6800XT  | Creative Sound Blaster Z  |  WD Black SN850 500GB NVMe  |  WD Black SN750 2TB NVMe  |  WD Blue 1TB SATA SSD  |  Corsair RM850x  |  Corsair H100i RGB Pro XT  |  Corsair 4000D  |  LG 27GP850  |

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Posted

It's not ideal, and I wouldn't recommend running a balls-to-the-walls overclock while doing 24/7 workloads on it, but it should be fine.

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