• 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 1.3inch LCD BPI Pi5-Active-Cooler-C Raspberry Pi 5 SSD Jetson Nano Module ESP32 S3 Development Board 1.9 inch LCD Capacitive Touch Screen 1.9inch Display 170×320 N16R8 LCD1602 I2C Module PWM Adjustable backlight 3.3V/5V For Arduino/ Raspberry Pi/ Pico/ Jetson Nano/ ESP32 Raspberry Pi 5 Fan Industrial Hybrid relay module RS485 Modbus RTU rail with isolation protection ESP32-P4-WIFI6 3.5inch LCD Display AI Development Board 320×480 3.5 inch TouchScreen Deepseek Raspberry Pi Camera OV5647 Camera (F) Tuya AI Voice Robot T5-E1 1.75 inch Round AMOLED TouchScreen GPS For XiaoZhi Development Board Raspberry Pi 5 PCIe to M.2 NVMe SSD Adapter Board (D) HAT Pi5-2280-2242-2230 LuckFox Pico Raspberry Pi Pico 2 RP2350B RP2350-PiZero Development Board PSRAM DVI For HDMI Rounded LCD Raspberry Pi Display ESP32 Portable Pendant ESP32 C6 Development Board with 1.32inch AMOLED Display QSPI Interface WiFi 6 Audio Acquisition Deepseek Raspberry Pi 5 27W