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‎10-27-2022 01:59 PM - edited ‎10-27-2022 02:03 PM

HP Recommended
Product: HP Laptop PC 15-dw3000 (1A3X9AV)

    Hi,

 

    I upgraded my SSD in my laptop. It's WD SN 770 1TB SSD that can benefit from PCI-e 4.0 Its read/write speeds are beyond 5000 Mb/s which surpasses PCI-e 3.0 bandwidth.

 

    Also, beginning with 11th gen Core CPUs, Intel added PCI-e 4.0 support. But my issue starts here. My new SSD is working on PCI-e 3.0. I did some storage benchmarks and it didn't pass 3000Mb/s read/write speeds. I think the NVMe PCI-e port connects to the Platform Controller Hub (PCH) rather than the CPU. CPU is PCI-e 4.0 capable but PCH only supports 3.0

 

    Is there a way for the NVMe slot to connect directly to the CPU PCI-e controller? Maybe a BIOS update

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