IBM 8651RM0 Hardware Maintenance Manual - Page 150

5. Refer to the documentation that comes with the rack for additional instructions. Status Indicators Cooling-Failure Light Power-Failure Light Hot-Swap Drive Subsystem Failure Light Power-On Light Information Panel Diskette Drive In-Use Light CD-ROM Drive In-Use Light Hard Disk Status Light Hard Disk Activity Light CD-ROM Drive In-Use Light: When this light is lit, the CD-ROM drive is being accessed. Diskette Drive In-Use Light: When this green light is lit, the diskette drive is being accessed. Power-On Light: When this green light is lit, system power is present in the server. Note If this light is off, it does not mean there is no electrical current present in the server. To remove all electrical current from the server, you must unplug the server power cord from the electrical outlet. Power-Failure Light: When this amber light flashes, a power supply or the power-supply controller has failed. Refer to "Status Indicators" on page 18 for more information. Cooling-Failure Light: When this amber light flashes, a fan problem has occurred or the server has overheated. Refer to "Status Indicators" on page 18 for more information. Hot-Swap Drive Subsystem Failure Light: When this amber light flashes, a hard disk drive has failed 142 Netfinity Server HMM