Troubleshooting • Re: pcie set to gen3 but uses gen2 on pi5

Last year 2014 when I bought this nvme/ssd it worked with gen3 speeds.
Maybe new firmwares changed the behavior ?

No. It still works.

Code:

[   [b] 1.854392] brcm-pcie 1000110000.pcie: Forcing gen 3[/b][    1.859482] brcm-pcie 1000110000.pcie: PCI host bridge to bus 0000:00[    [b]2.019859] brcm-pcie 1000110000.pcie: link up, 8.0 GT/s PCIe x1 (!SSC[/b])

This is the PCIe connector on the Pi 5. The maximum is PCIe 3.0 x1 which is what is has negotiated.

Code:

[   [b] 2.262049] brcm-pcie 1000120000.pcie: Forcing gen 2[/b][    2.267058] brcm-pcie 1000120000.pcie: PCI host bridge to bus 0001:00[   [b] 2.427857] brcm-pcie 1000120000.pcie: link up, 5.0 GT/s PCIe x4 (!SSC)[/b]

This is the internal link to the RP1 chip. It is PCIe 2.0 x4 which is correct.

Statistics: Posted by trejan — Sun Mar 16, 2025 10:30 am

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