IBM 849130u Installation Guide - Page 31
Server, controls, power
UPC - 000435947147
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Chapter 3. Server controls, LEDs, and power This section describes the controls and light-emitting diodes (LEDs) and how to turn the server on and off. Front view The following illustration shows the controls, light-emitting diodes (LEDs), and connectors on the front of the server. Reset button Power-control button Power-on LED Hard disk drive activity LED Locator LED System-error LED USB 1 connector USB 2 connector CD-eject button CD drive activity LED Power-on LED: When this LED is lit, it indicates that the server is turned on. When this LED is off, it indicates that ac power is not present, or the power supply or the LED itself has failed. Note: If this LED is off, it does not mean that there is no electrical power in the server. The LED might be burned out. To remove all electrical power from the server, you must disconnect the power cord from the electrical outlet. Power-control button: Press this button to turn the server on and off manually. A power-control-button shield comes installed around the button to prevent the server from being turned off accidentally. You can remove this disk-shaped shield if you prefer. 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 to press the button. Hard disk drive activity LED: When this LED is flashing, it indicates that a hard disk drive is in use. Locator LED: When this LED is lit, it has been lit remotely by the system administrator to aid in visually locating the server. System-error LED: When this LED is lit, it indicates that a system error has occurred. USB connectors: Connect a USB device to either of these connectors. CD-eject button: Press this button to release a CD from the CD drive. CD drive activity LED: When this LED is lit, it indicates that the CD drive is in use. © Copyright IBM Corp. 2005 19