HP Compaq KB-9965 311059-111 ユーザーズマニュアル

The server contains LEDs that indicate the status and settings of hardware components. This 
section discusses the following types and locations of LEDs: 

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Front panel 

System board 

Memory board 

PCI-X Hot Plug 

Expansion slot speed 

Hot-plug power supply 

Hot-plug fan 

Embedded NIC connector (RJ-45) activity 

Rear Unit Identification (UID) LED 

Hot-plug hard drive 

Information at the end of this section discusses the interactions between external and system 
board LEDs in troubleshooting or assessing system status.