• 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: Raspberry Pi 10.1 inch QLED Quantum Dot Display 1280x720 Capacitive Touchscreen For Computer PC/Jetson/Game Raspberry Pi 3.7 inch e-Paper link (G) RYBW 416x240 For Arduino / Jetson Nano / STM32 ESP32 C3 LCD Raspberry Pi CSI-to-HDMI Raspberry Pi MLX90641 Industrial RJ45 Ethernet To 16-ch Relay Module Modbus RTU TCP With Protection and guide rails ESP32 S3 2.1 inch Round LCD Development Board 480x480 TouchScreen Display LVGL HMI With QMI8658C 6-Axis Sensor Sipeed-Lichee-Tang-Nano-FPGA-Series-IDE-Install ESP32 MLX90640 ESP32-S3 AI RLCD Total Reflection Screen 4.2 inch Development Board Deepseek Serial UART Bus Servo CF35-12 TTL 35KG.CM Magnetic-Encoder High precision and Large torque Arducam Raspberry Pi Pico R7FA4 Plus A Board Based on R7FA4M1AB3CFM Compatible with Arduino UNO For R4 Minima Raspberry Pi 3.5 inch LCD F Display Capacitance TouchScreen 60fps ST7796 GT911 320x480 Also For Arduino/Pico2/ESP32/RP2040/RP2350 Accelerometer RP204 0.85inch LCD ESP32-S3 Industrial-Grade WiFi Relay IOT RS485 Communicator Bluetooth ESP32 ST7789 RP2040