Server controls, LEDs, and powerThis section describes the controls and light-emitting diodes (LEDs) and how to turnthe server on and off.Front viewThe following illustration shows the controls, LEDs, and connectors on the front ofthe server.CD-eject orDVD-eject buttonCD or DVD driveactivity LEDHard disk driveactivity LEDPower-onLEDPower-controlbuttonSystem-errorLEDUSB connectorsOptionaldiskette-ejectbuttonOptionaldiskette driveactivity LEDPower-on LEDWhen this LED is lit and not flashing, it indicates that the server is turnedon. When this LED is flashing, it indicates that the server is turned off andstill connected to an ac power source. When this LED is off, it indicates thatac power is not present, or the power supply or the LED itself has failed. Apower LED is also on the rear of the server.Note: If this LED is off, it does not mean that there is no electrical power inthe server. The LED might be burned out. To remove all electrical powerfrom the server, you must disconnect the power cords from the electricaloutlets.Power-control buttonPress this button to turn the server on and off manually.Hard disk drive activity LEDWhen this LED is flashing, it indicates that the associated hard disk drive isin use.USB connectorsConnect USB devices to these connectors.CD-eject or DVD-eject buttonPress this button to release a CD from the CD drive or a DVD from theDVD drive.Chapter 1. The System x3200 M2 server 9
