What to Do When Your PCIE Cable Melts: Seeking Guidance

Today, I encountered a concerning issue with my computer. While using my 4060 TI GPU, I suddenly noticed a burnt plastic smell permeating the air. Initially, I thought it might have been my room fan causing the odor. However, even after turning off the fan, the smell persisted. This prompted me to shut down my PC altogether, and that’s when I discovered a rather alarming sight: the plastic around one of the cable pins had begun to melt.

After making this unsettling discovery, I quickly ordered a replacement cable to resolve the issue. However, I can’t shake off the fear that my GPU may have suffered damage during this incident. Interestingly, before I turned off my computer, everything seemed to be functioning perfectly; there were no signs of instability, graphical artifacts, or unexpected shutdowns.

Now, I’m at a crossroads. Is it safe to simply replace the damaged cable, or might I be prolonging a potential issue? Given that I didn’t see any malfunction before discovering the melted connector, I hope the graphics card remains unscathed. My primary concern is that replacing the cable could somehow lead to further complications, particularly due to the melted plastic debris.

As I cannot afford to replace the PSU or send the GPU for repairs at this moment, I’m reaching out to anyone with expertise in electronics or computer repair. Your insights on how to proceed safely would be incredibly beneficial. Should I risk powering up my system after replacing the cable, or are there precautions I should take to ensure everything operates smoothly? Any advice would be greatly appreciated!

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  1. I’m sorry to hear about the issue you’re experiencing with your PCIe cable. Melting plastic around a cable pin can indicate a serious electrical problem, which could potentially damage your GPU or other system components. Here are some important steps you should consider:

    • Ensure safety first: Before doing anything, unplug your computer from the power source to prevent any risk of electrical shock or further damage.
    • Inspect for damage: Carefully examine the GPU, PCIe slot, and surrounding area for any signs of burn marks, melted components, or debris. If there is any significant damage, it may require professional repair or replacement.
    • Replace the damaged cable: Since you’ve already ordered a replacement, make sure to use an high-quality, compatible PCIe power cable from a reputable manufacturer to prevent future issues.
    • Clean the area: Remove any plastic debris carefully using an anti-static brush or compressed air. Avoid using liquids that could cause further damage or conductivity issues.
    • Test systematically: After replacing the cable, first inspect visually, then plug in the system with minimal components connected (GPU, CPU, RAM). Power on to check if the system POSTs normally. Monitor temperatures and voltages using reliable hardware monitoring tools.
    • Consider professional diagnostics: If you notice any instability, artifacts, or unusual behavior

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