Lenovo ThinkServer TD100x - Manual (Page 23)

The following illustration shows the controls, LEDs, and connectors on the front of
the simple-swap server models.
1 System power LED 5 USB connectors
2 Power-control button 6 CD-eject or DVD-eject button
3 Hard disk drive activity LED 7 CD or DVD drive activity LED (green)
4 System-error LED 8 Front information panel
Power-on LED
When this LED is lit, it indicates that the server is turned on. When this LED
is flashing, it indicates that the system is turned off but still connected to ac
power. When this LED is off, it indicates that ac power is not present, or the
power supply or the LED itself has failed.
Power-control button
Press this button to turn the server on and off manually.
Hard disk drive activity LED
When this LED is flashing rapidly, it indicates that a hard disk drive is in
use.
System-error LED
When this amber LED is lit, it indicates that a system error has occurred.
An LED on the system board might also be lit to help isolate the error.
Detailed troubleshooting information is in the Hardware Maintenance
Manual on the ThinkServer Documentation DVD.
Chapter 1. The ThinkServer TD100 and TD100x server 9