• sales

    +86-0755-88291180

Raspberry Pi 5 PCIE User Guide

Step 1 Enabling PCIe】
By default the PCIe connector is not enabled. To enable it you should add the following option into /boot/firmware/config.txt and reboot:

# Enable the PCIe External connector.
dtparam=pciex1
A more memorable alias for pciex1 exists, so you can alternatively add dtparam=nvme to the /boot/firmware/config.txt file.

NOTE
Enumeration of PCIe devices behind a switch is not currently supported.

Step 2 PCIe Gen 3.0】
The connection is certified for Gen 2.0 speeds (5 GT/sec), but you can force it to Gen 3.0 (10 GT/sec) if you add the following lines to your /boot/firmware/config.txt.

# Enable the PCIe external connector
dtparam=pciex1

# Force Gen 3.0 speeds
dtparam=pciex1_gen=3
WARNING
The Raspberry Pi 5 is not certified for Gen 3.0 speeds, and connections to PCIe devices at these speeds may be unstable.
You should then reboot your Raspberry Pi for these settings to take effect.

Step 3 Booting from PCIe】
Once enabled, and after you reboot, an NVMe disk attached via the PCIe should be visible. However, your Raspberry Pi won’t try to boot off the NVMe drive. If you wish to enable boot support you will need to change the BOOT_ORDER in the bootloader configuration. Edit the EEPROM configuration by,

sudo rpi-eeprom-config --edit
and change the BOOT_ORDER line to be as below.

BOOT_ORDER=0xf416
after saving your changes, reboot your Raspberry Pi to update the EEPROM.

NOTE】
Your Raspberry Pi will not boot from an attached NVMe drive unless you have the external PCIe port enabledd, and there’s a NVMe drive with a valid boot partition attached to the PCIe bus.

TAG: spotpear SpotPear Lidar IR Thermal Imaging Camera Raspberry Pi 4 Camera 2.66inch e-Paper e-link Module 360x184 4-Color Red Yellow Black White For Arduino Raspberry Pi STM32 Jetson Tutorial Information Wiki Program Code User Guide SpotPear Raspberry Pi Pico 2 RP2350-One Mini Board Type-A RP2350A Raspberry Pi 8inch LCD 768x1024 Capacitive TouchScreen HDMI Display Industrial RJ45 Ethernet To 16-ch Relay Module Modbus RTU TCP With Protection and guide rails ESP32 1.44inch LCD Industrial USB TO 4CH RS232/485/422/TTL Serial UART Converter FT4232HL Sensor Raspberry Pi Camera OV5647 Camera (F) Raspberry Pi 1.54inch OLED Arduino board manager tutorial User Guide Core3566002032 Raspberry Pi 3.5 inch LCD F Display Capacitance TouchScreen 60fps ST7796 GT911 320x480 Also For Arduino/Pico2/ESP32/RP2040/RP2350 3.5inch RPi LCD (A) Manual Configuration Raspberry Pi display MEGA2560 R3