IBM 7945G2U Installation And User Manual

Also see for 7945B2U: Brochure & specs

Contents

IBM 7945G2U Installation And User Manual Manual pdf 49 page image

System-board LEDsThe following illustration shows the light-emitting diodes (LEDs) on the systemboard.Note: Error LEDs remain lit only while the server is connected to power.System pulse LEDsThe following LEDs are on the system board and monitor the system power-on andpower-off sequencing and boot progress (see “System-board LEDs” for the locationof these LEDs).Table 6. System-pulse LEDsLED Description ActionEnclosure manager heartbeat Indicates the status ofpower-on and power-offsequencing.When the server isconnected to power, this LEDflashes slowly to indicate thatthe enclosure manager isworking correctly.(Trained service technicianonly) If the server isconnected to power and theLED is not flashing, replacethe system board.Chapter 2. Installing optional devices 33