IBM 8686 - Eserver xSeries 360 Hardware Maintenance Manual

Also see for 360: Specifications Operating guide User guide Hardware Maintenance Manual Manual

Contents

SCSI bus activity LED: This green LED is on when there is activity on the SCSIbus.Information LED: This amber light is on if the server power supplies arenonredundant or some other noncritical event has occurred. See the LEDs on theLevel 2 diagnostic LED panel or on the system board for specific error information.For details, see “Level 2 diagnostic and system board LEDs” on page 68.Fault LED: This amber LED is on if a system error has occurred. See the LEDs onthe Level 2 diagnostic LED panel or on the system board for specific errorinformation. For details, see “Level 2 diagnostic and system board LEDs” on page68.Reset button: Press this button to reset the server and run the power-on self-test(POST).Power-control button: If the server is in operational mode, press this button to putit into standby mode. If the server is in standby mode, press this button to restore itto operational mode. See “Turning on the server” and “Turning off the server” onpage 11 for more information about applying and removing external power to theserver.Power LED: This green LED is on if ac and dc power are present in the server. Ifthis LED is flashing, the server is in standby mode (ac power is present, but thepower supplies are turned off). If this LED is off, either ac power, all power supplies,or the light has failed.Note: If this LED is off, it does not mean that there is no electrical power present inthe server. The LED might be burned out. To remove all electrical currentfrom the server, you must unplug the server power cords from the electricaloutlets.Turning on the serverTurning on the server refers to the act of plugging the server power cords into thepower source and pressing the power-control button. After you install the networkoperating system in the server, this typically causes the operating system to start.Complete the following steps to turn on the server.1. Turn on all external devices, such as the monitor.Note: After you plug the power cords into the power source, wait 30 secondsbefore pressing the power-control button on the operator informationpanel. During this time, the Remote Supervisor Adapter is initializing andthe power-control button does not respond. The power LED on theinformation panel blinks, indicating that ac power is present in the server.2. Plug the server power cords into the power source.Note: Plugging the power cords into the power source might cause the serverto start automatically. This is an acceptable action.3. Wait 30 seconds; then, press the power-control button on the operatorinformation panel. The power LED comes on and the power-on self-test (POST)begins.10 Hardware Maintenance Manual: xSeries 360 Type 8686