IBM 8676 Hardware Maintenance Manual - Page 14
Server, controls, power, Front
UPC - 087944770107
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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, LEDs, and connectors on the front of the server. CD-eject button CD-ROM drive activity LED Diskette-eject button Diskette drive activity LED Hard disk drive status LEDs USB 1 connector USB 2 connector Hard disk drive activity LEDs Power LED Operator information panel Power control button Reset button CD-ROM drive activity LED: When this LED is lit, it indicates that the CD-ROM drive is in use. CD-eject button: Press this button to release a CD from the CD-ROM drive. Diskette-eject button: Press this button to release a diskette from the diskette drive. Hard disk drive activity LEDs: When either of these LEDs is flashing, it indicates that the associated hard disk drive is in use. Power LED: When this LED is lit, it indicates that ac and dc power are present in the server. When this LED is flashing, it indicates that the server is in Standby mode. When this LED is off, ac power is not present, or the power supply or the LED itself has failed. A power 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 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. 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. USB connectors: Connect USB devices to these connectors. Hard disk drive status LEDs: When either of these LEDs is lit, it indicates that the associated hard disk drive has failed. If an optional RAID adapter is installed in the server and the LED flashes slowly (one flash per second), the drive is being rebuilt. If the LED flashes rapidly (three flashes per second), the controller is identifying the drive. 4 xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide