Install the drive backplane
Use this information to install the drive backplane.
- Read the following section(s) to ensure that you work safely.
- Turn off the corresponding compute node that you are going to perform the task on. 
- Remove the compute node (see Remove a compute node from the enclosure). 
- Remove the compute node cover (see Remove the compute node cover). 
- Pull the drives or fillers out of the node slightly to disengage them from the drive backplane (see Remove a hot-swap drive). 
You can refer to 2.5-inch drive backplanes for detailed backplane introduction.
- Do not mix nodes with the four-drive backplane and six-drive backplanes in the same enclosure. Mixing the four-drive backplane and six-drive backplanes may cause unbalanced cooling. 
- Before installing a four 2.5-inch NVMe backplane, make sure two processors are installed. 
Complete the following steps to install the drive backplane.

After you install the drive backplane, complete the following steps.
- Reinstall the drives and filler panels (see Install a hot-swap drive). 
- If the air baffle is removed, reinstall it (see Install the air baffle). 
- Reinstall the compute node cover (see Install the compute node cover). 
- Reinstall the compute node (see Install a compute node in the enclosure). 
- Check the power LED to make sure it transitions between fast blink and slow blink to indicate the node is ready to be powered on. 
Demo video