Power/Sleep Lamp; Disk Access Lamp; Link/Act Lamp; 1000/100/10 Lamp - NEC Express5800 User Manual

8-4 Troubleshooting

POWER/SLEEP Lamp

The green POWER/SLEEP lamp lights to indicate normal operation while the server is powered.
When the server is off-powered, the POWER/SLEEP lamp stays unlit.
The POWER/SLEEP lamp indicates that the server is running in the power-saving mode (sleep
mode). If the OS supports the power-saving mode such as Windows, pressing the POWER/SLEEP
switch blinks the POWER/SLEEP lamp in green and places the server in the power-saving mode.
Press the POWER/SLEEP switch to turn out the POWER/SLEEP lamp and place the server back in
the normal mode.
The power-saving mode is only available when the OS supports the power-saving feature. Some
OS's allow you to set the server to automatically turn in the power-saving mode when no access is
made to the server for a certain period of time or to select the power-saving mode with a command.

DISK ACCESS Lamp

The DISK access lamp lights in green every time any of internal hard disk drive is accessed. The
access lamp for the optical disk drive lights when access is made to a media in the drive.

LINK/ACT Lamp

The link/ACT lamp indicates the state of each network port normally equipped with the server. If
the power is supplied to the server and the hub and they are correctly connected with each other, the
lamp is lit green (LINK state). If information is transmitted through a network port, the lamp blinks
green (ACT state).
If the lamp is not lit in the LINK state, check the network cable and the cable connection. If the
lamp is not lit still after the checking, the network (LAN) controller may be defected. Contact your
service representative.

1000/100/10 Lamp

The 1000/100/10 lamp indicates whether each of the network ports normally equipped with the
server is operated through the 1000BASE-T, 100BASE-TX or 10BASE-T network interface. If the
lamp is lit orange, the network port is operated through 1000BASE-T. If the lamp is lit green, the
network port is operated through 100BASE-TX. If the lamp is off, the network port is operated
through 10BASE-T.