Dell PowerEdge M420 Hardware Owner's Manual - Page 45

Table 1-10. CMC Module Features Indicator Pattern Description Network interface controller link indicator Off Green LAN is not linked. LAN is linked. Network interface controller activity indicator Off Amber blinking LAN is not active. Indicates that the system CMC and the LAN are communicating. Power indicator Off CMC does not have power. Green CMC has power. Green blinking Firmware update in progress. Status/ identification indicator Off This CMC is the standby CMC. Blue (solid) This CMC is the primary CMC. Blue The CMC is being identified by the systems (blinking) management software. Fault indicator Off The CMC is operating normally. Amber blinking A fault has occurred. Serial connector None Used for local configuration (115200 baud, No parity, 8, 1) The CMC provides multiple systems management functions for your modular server: • Enclosure-level real-time automatic power and thermal management. - The CMC monitors system power requirements and supports the optional Dynamic Power Supply Engagement mode so that the CMC can enable or place power supplies in standby dynamically depending on load and redundancy requirements to improve power efficiency. - The CMC reports real-time power consumption, which includes logging high and low points with a time stamp. About Your System 45