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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Shut the PC down and disconnect its power before inspecting an RTX 5090 power connector that is unusually hot, discolored, deformed, or smells burnt. Do not keep gaming or run a stress test to see whether it happens again. If the GPU socket is discolored or melted, or the connector is stuck, leave the system off and contact the card maker or a qualified repair provider.
What to do immediately
- Stop using the PC. If there is no active smoke or immediate hazard, shut it down normally. If there is smoke or active burning, cut power by the safest available method and keep clear of the damaged connection. Do not run a load to reproduce the symptom.
- Unplug the PC from the wall. Wait until the system is off and disconnect its power cord before touching or inspecting the GPU cable. ASUS gives the same safety instruction before troubleshooting a GPU power warning: power off and unplug the system.
- Inspect without forcing anything. Look at the cable and connector at both ends, as well as the GPU socket. Check for brown or black discoloration, melted or misshapen plastic, bent or damaged pins, looseness, or other signs of overheating. ASUS specifically advises checking whether the cable is bent, deformed, or overheated and whether the GPU input is clean and its pins are intact.
Decide what to do based on where the damage is
| What you find | Next step |
|---|---|
| Cable is visibly bent, deformed, discolored, or overheated; GPU socket appears undamaged | Do not reuse the cable. Replace it only with a cable approved for the exact PSU model. If you cannot confirm compatibility, ask the PSU maker or a qualified service provider. |
| GPU socket is discolored, melted, or has damaged pins | Keep the PC unplugged. Do not power it on or attempt to repair the socket; contact the graphics-card maker or an authorized service provider. |
| Connector appears fused or stuck | Do not pull, pry, or force it apart. Leave the system disconnected and arrange manufacturer or qualified service. |
| No visible damage, but a GPU warning remains | Follow the instructions for the specific GPU and warning feature, then contact the manufacturer if the alert persists. Do not keep swapping cables or repeatedly use the PC to test it. |
ASUS says an overheated, bent, or deformed cable should be replaced and advises against low-quality or uncertified adapter cables. Its GPU Tweak III Power Detector+ guidance applies to that ASUS utility, not as a universal diagnostic procedure for every RTX 5090. For an alert that remains after its checks, ASUS directs users to its service center.
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Reseat only an undamaged connector
If the cable, GPU socket, and pins all appear clean and undamaged, you can check the connection while the PC remains unplugged. Confirm the plug is fully inserted and latched, with no visible gap. ASUS says the connection should make a distinct click and that both ends of a bundled adapter should be firmly connected. Seasonic likewise instructs users of its 90-degree cable to ensure connectors are inserted, click-locked, and seated properly.
Do not bend or put force on the cable close to the connector after installation. Reseating is not a fix for discoloration, melting, damaged pins, or a warning that persists.
#1 Best Overall
- Specially designed for graphics cards with 16 pin connectors - PCIE 5.0 series 4x8 pin to 16 pin 12+4 pin expansion cables are specifically designed for【 RTX4070 RTX4080 RTX4090 RTX5070 RTX5080 RTX5090】 series graphics cards. Please check the GPU orientation before purchasing.
- 16AWG 600W 12VHPWR PCIE 5.0: Made of standard tin copper wire, supports up to 600W output. The graphics card cable plug terminals are made of copper alloy and tin materials, which can provide stable and higher current.
- Package includes: 1x 16AWG 12VHPWR GPU Power Cable PSU Sleeved Extension Cable Heavy Duty Braided Wire 4x8Pin to 16Pin (12+4) 15cm
- Before placing an order, please check the detailed photos of the product interface and the above models. This product is compatible with the models mentioned in the instructions. If you need to know about other models, please contact customer service. Jintai customer service will find the suitable product for you and provide you with the best service!
- 【Bulk Order】We have more than 10,000 inventory of this item, please feel free to contact us if you need to place bulk order.
Use a PSU-compatible replacement cable
A 16-pin plug that looks similar is not proof that a modular PSU cable is compatible. Use a replacement approved by the power-supply manufacturer for the exact PSU model, and verify the match before connecting it. Seasonic’s compatibility information applies to its specified cable and PSU lines; it does not establish compatibility with other brands. Its recommendations and listed compatible series are available in the Seasonic 90° 12VHPWR cable guidance.
Do not assume a new cable or a different PSU will fix a damaged GPU socket. If the card-side connector shows damage, seek service rather than powering the card with another cable.
Rank #2
- 【Compatibility】Designed specifically for RTX 4090 and RTX 5090 graphics cards, and fully compatible with ATX 3.0/3.1 power supplies.
- 【650W & PCIe 5.0】Complies with PCIe 5.0 standards, featuring 16AWG thickened alloy copper cores. This design delivers greater current capacity and lower voltage drop, ensuring stable operation without frame drops.
- 【Premium 16AWG Material】The internal core conductor boasts ultra-low resistance, so it won’t overheat during long hours of full-load operation. The thickened wire enhances heat dissipation and current transmission efficiency, meeting the strict stability requirements of professional gamers
- 【Fixed Length】Exclusively 15.75 in (40cm) long, this cable fits perfectly in both compact ITX cases and full-tower setups. Its split wire design allows for easy cable management.
- 【Injection-Molded Reinforcement】The connector and wire root are integrated via secondary injection molding, effectively preventing loose connections, overheating, and bending damage.
Where to get warranty or repair help
Contact the maker responsible for your specific graphics card. NVIDIA’s US warranty page covers Founders Edition cards and directs customers with a problem to NVIDIA Customer Care; partner-branded cards are covered by their add-in-board partner under the applicable terms. Warranty coverage and service routes vary by product and region. See NVIDIA’s US GeForce graphics-card warranty information or contact the card’s board partner.
If your card is an ASUS model, use ASUS support for a persistent ASUS GPU Tweak III Power Detector+ alert. For other brands, follow that manufacturer’s support and warranty process. Include the card model, PSU model, a description of what you saw, and clear photos of the disconnected cable and socket if the manufacturer requests them.
Quick Recap
Best Value
- PCIe 5.0 12+4 to 3×8 Pin Power Extension - Engineered for RTX 5090, 5080, 5070 Ti, 4080, and all RTX 4000 GPUs, this 12VHPWR (12+4 pin) to 3×8 pin cable delivers up to 600W of clean, efficient power. Meets PCIe Gen 5.0 standards for reliable current delivery to next-generation GPUs during intensive gaming or rendering workloads.
- GPU Power Extension Cable for Better Cable Management - This is a GPU power extension cable, designed to connect between your PSU’s existing 8-pin PCIe leads and your GPU. It does not replace or connect directly to the power supply. Ideal for improving cable routing, airflow, and achieving a cleaner, more professional build.
- Built with 16AWG Tinned Copper Wires - Constructed with UL1571-certified 16AWG tinned copper conductors for maximum conductivity, heat resistance, and long-term reliability. Provides stable current flow for RTX 5090, RTX 5080, RTX 5070, RTX 5070 Ti and RTX 40 series GPUs under sustained high loads.
- Premium Sleeved Design for Custom Builds - Durable nylon-braided sleeving and precision cable combs keep cables neat and flexible. This GPU extension cable integrates seamlessly with 12VHPWR 90-degree (right angle), 270 degree (left angle), and straight (180 degrees) adapters and power supplies for all PSUs.
- Safety Tested & Warranty Protected - Each LINKUP 12VHPWR cable undergoes full load and continuity testing for power stability and safety. Rated up to 450W continuous output and backed by a 365-day limited warranty with dedicated support. Ensure connectors are fully seated before use for optimal performance.
Rank #4
- Compatible with: 12vhpwr power cord connects your new 16 pin(12 power pins+ 4 sense pins) GPU to old 8 pin pcie power supply, with up to 600W output. Works with: RTX 5090 5080 5070 5070ti 4090 4080 4070ti
- Original Standard: Sleeved extension cable is make of alloy copper and tinned for long-term using, Bending resistant and durable
- Do ensure the pins are fully seated, hearing a distinct click and see no gap. A loose connection can cause high resistance, leading to overheating or melting at the connector point
- This is 12vhpwr not new model 12v-2x6. They are both capable of delivering 600W of power. To get the max 600W output, you must ensure that 16 pin port and 4 x 8 pin(each 150W) pice port are firmly plugged without any gap
- Please note that 12VHPWR-1X4 is compatible with most 8 pin old pcie power supply. Standard 8-pin port can reach 150W output
Rank #3
- Male To Male GPU Power Cord**: Powers an NVIDIA 40 and 50 Series GPU with an existing NZXT ATX 2.X PSU—no ATX 3.0 required.16 pin (12+4) graphics card module cable, male to male, can be directly plugged into the computer power supply without the need for an extension cord. (NO RTX 5090)
- Efficient Power Delivery**: With copper wire core and Brass Tin Plated Terminal (Resistant to high voltage and high temperature), offering lower electrical resistance. Supports up to 800W power input(single wire) and 2000W Power supply (whole set) , reducing current loss and preventing blue screens.
- The Hydra-16PIN has **A and B models **：Model B：The 4-pin head (of the 16 pin) is toward to the cable direction; Model A: The 4-pin head (of the 16 pin) is toward to the opposite direction of the cable. More in line with personalized need
- RGB Lights are controllable. (Compatible with motherboard RGB Software or OPENRGB)
- 90° Right-Angle Design**: No need for cable bending, ensuring complete contact with all cable terminals. Plug-and-play for enhanced wiring flexibility and neatness.
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