The power supply module of each rack has a RESET button on its front panel, which when pressed triggers an initialization sequence of the modules on the rack it is supplying.
When this action takes place in a power supply module in the rack supporting the TSX P57/TSX H57 processor (rack 0), it causes a warm restart.
Special case with the PCI 57 processor
In this case, the processor is not physically present on the rack at address 0, so pressing the RESET button on the rack power supply module does not cause the application to warm restart, nevertheless the modules present on the rack are reinitialized.
