OperatorinformationpanelUSB connectorsDVD-ejectbutton Hard disk driveactivity LEDElectrostatic-discharge connectorDVD driveactivity LEDHard disk drivestatus LEDScalabilityLEDElectrostatic-discharge connector: Connect a electrostatic-discharge wrist strapto this connector when you work with static-sensitive devices.DVD-eject button: Press this button to release a CD or DVD from the DVD drive.DVD drive activity LED: When this LED is lit, it indicates that the DVD drive is inuse.USB 1 and 2 connectors: Connect USB devices to these connectors.Scalability LED: This LED is lit and remains on during POST on the primary serverwhen the UEFI and the IMM detect more than four microprocessors. This LED is litand remains on after POST on the secondary server.Hard disk drive activity LED: When this LED is flashing, it indicates that the driveis in use.Hard disk drive status LED: On some server models, each hot-swap hard diskdrive has a status LED. When this LED is lit, it indicates that the drive has failed. Ifan optional IBM ServeRAID controller is installed in the server, when this LED isflashing slowly (one flash per second), it indicates that the drive is being rebuilt.When the LED is flashing rapidly (three flashes per second), it indicates that thecontroller is identifying the drive.Operator information panelThe following illustration shows the controls and LEDs on the operator informationpanel.Information LEDSystem-error LED1 2Ethernet icon LEDPower-control button/power-on LEDEthernet port activity LEDs Locator button/locator LEDPower-control button coverThe following controls and LEDs are on the operator information panel:v Power-control button and power-on LED: Press this button to turn the serveron and off manually or to wake the server from a reduced-power state. Thestates of the power-on LED are as follows:12 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide
