Service manual

1-28 AlphaServer GS80/160/320 Service Manual
1.8.4 Power System Manager (PSM)
In addition to configuring and monitoring the QBB, the power system
manager (PSM) performs tasks at the request of the system control
manager. The PSM is a microprocessor controlled subsystem
responsible for power management, environmental monitoring, system
reset, and initialization. The PSM is a required module in all QBBs.
Figure 1– 13 Power System Manager Software Block Diagram