• 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: ESP32-S3 1.28inch Round LCD ESP32 0.85inch LCD RV1106 SC3336 Thermal imaging camera Luckfox Pico Pro Raspberry Pi 5 Aluminium Case Raspberry Pi Pico 1.54inch LCD display 240×240 IPS 1.54 inch screen Raspberry Pi Starlight Camera IR-CUT IMX462 (A) Sensor 2MP 90 Degree Raspberry Pi Display Driver Board 1.47 inch LCD AXS5106L TouchScreen JD9853 Display 172x320 For Arduino/Raspberry Pi/Pico/ESP32 Arduino MEGA2560 R3 Industrial Isolation USB TO RS232/485/422/TTL FT232RNL Serial UART Converter Core3566002000 Raspberry Pi 5 Power Sipeed MaixCAM Pro AI Camera Kit SG2002 RISC-V YOLO OpenCV Audio WIFI6 Linux Board IMU MicroPhone Speaker 3.4inch Round LCD HDMI Capacitive Touchscreen Display 800x800 For Raspberry Pi/Jetson Nano/mini PC Jetson Orin 5G/4G/3G expansion board GNSS GPS SIM8260G-M2 SIM8262E-M2 ESP32 C3 MINI TV Arducam Sipeed NanoCluster Mini Cluster Board mini data center For Raspberry Pi CM45 / Computer /LM3H /M4N