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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
1PSU cage3PDB connectors
2Chassis midplane4PSU 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.