PCIe Riser Cable Self-Check Guide

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If you encounter abnormal situations when using your graphics card (such as system not booting, no display, or instability), please follow the steps below for quick troubleshooting. This will help you determine whether the issue is related to the riser cable.

Step 1: Elimination Test (Direct Connection)

Install your graphics card directly into the motherboard PCIe slot:

• ✅ If the system boots normally: your GPU and system are fine, please continue with the next steps.
• ❌ If the issue persists: check your graphics card, power supply, or other hardware settings.

Step 2: Check Riser Cable Installation

• Ensure both ends of the riser cable are firmly connected (motherboard side and GPU side).
• Avoid excessive bending, twisting, or squeezing of the cable during installation.
• Make sure no metal objects (such as case panels) are in contact with the connectors.

Step 3: Confirm GPU Power Supply

• Check that all GPU external power connectors (such as 6-pin or 8-pin) are properly plugged in.
• Ensure your PSU has sufficient wattage; insufficient power may cause instability or failure to boot.

Step 4: Test with Another PCIe Slot

If your motherboard has multiple PCIe slots, test with a different slot to rule out slot malfunction.

Step 5: Clean the Contacts

• Gently clean the GPU’s gold fingers with an eraser.
• Make sure the riser cable connectors and motherboard PCIe slots are free of dust, oxidation, or looseness.

Step 6: BIOS Settings (For example when using PCIe Gen5 GPUs )

If you are using PCIe Gen5 devices:

• Set your motherboard BIOS PCIe slot mode to Gen5 for better compatibility.
• Ensure your riser cable supports PCIe Gen5, otherwise compatibility issues may occur.

If the issue persists, please prepare the following information and contact our support team through Submit Ticket:

1. Motherboard model and BIOS version
2. GPU brand and model
3. Power supply brand and wattage
4. Riser cable model and length
5. Problem details (e.g., no display, system crash, stuttering, etc.)
6. Order Information

We will assist you with further troubleshooting. Thank you for your support!