💻 Technology Jun 13, 2026 · Wesley Karanja

Your motherboard is throttling your PCIe slots in BIOS, and you probably don't know how to fix it

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Your motherboard is throttling your PCIe slots in BIOS, and you probably don't know how to fix it
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Modern PC builders spend countless hours researching CPUs, GPUs, SSDs, and memory kits, but many overlook one of the most important performance settings hidden inside their motherboard's BIOS. I used to assume that if my hardware was physically installed correctly, it would automatically run at its maximum speed. After all, PCIe standards are designed to negotiate the fastest supported connection between devices and the motherboard.

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