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Chassis midplane

The following illustration shows the location and connectors of the chassis midplane.

Figure 1. Chassis midplane location and connectors
Chassis midplane location and connectors
1 PSU cage3 PDB connectors
2 Chassis midplane4 PSU connectors

1 PSU cage: For the PSU slots, see Chassis rear view.

2 Chassis midplane: For the replacement of the PSU cage and Chassis midplane, see PSU cage and chassis midplane replacement.

3 PDB connectors: When a node is installed in the chassis, the power distribution board (PDB) in the node is connected to the corresponding connector on the chassis midplane.

4 PSU connectors: When a hot-swap power supply unit (PSU) is installed in the PSU cage, the PSU is connected to the corresponding connector on the chassis midplane.

Note

  • The firmware of the chassis midplane can be updated via Lenovo XClarity Controller (XCC) and Lenovo XClarity Essentials OneCLI (LXCE OneCLI). Only the caretaker node can perform this update.

  • By default, the caretaker node is automatically selected by the PSoC firmware on the chassis midplane. To change the chassis caretaker preference, see Configuring the D3 Chassis.

  • Go to Update the firmware for more information on firmware updating tools.