Operator information panelThe section shows the controls and LEDs on the operator information panel.The operator information panel is located on the side of the server.v Power-control button and power-on LED: Press this button to turn the serveron and off manually. The states of the power-on LED are as follows:– Off: Power is not present or the power supply, or the LED itself has failed.– Flashing rapidly (4 times per second): The server is turned off and is notready to be turned on. The power-control button is disabled. This will lastapproximately 5 to 10 seconds.– Flashing slowly (once per second): The server is turned off and is ready tobe turned on. You can press the power-control button to turn on the server.– Lit: The server is turned on.v System-locator button/LED: Use this blue LED to visually locate the serveramong other servers. A system-locator LED is also on the rear of the server. ThisLED is used as a presence detection button as well. You can use IBM SystemsDirector or IMM2 web interface to light this LED remotely. This LED iscontrolled by the IMM2. The locator button is pressed to visually locate theserver among the others servers.v Check log LED: When this yellow LED is lit, it indicates that a system error hasoccurred. Check the error log for additional information. See the“Errormessages” on page 131 for more information about event logs.v System-error LED: When this yellow LED is lit, it indicates that a system errorhas occurred. A system-error LED is also on the rear of the server. An LED onthe light path diagnostics panel on the operator information panel is also lit tohelp isolate the error. This LED is controlled by the IMM2.v Reset button: Press this button to reset the server and run the power-on self-test(POST). You might have to use a pen or the end of a straightened paper clip topress the button.Note: Depending on the type of operator information panel installed in yourserver, the Reset button is on the operator information panel or the light pathdiagnostics panel.Figure 5. Operator information panelChapter 1. The IBM System x3650 M4 BD Type 5466 server 17