Lenovo 7Y54, Maintenance Manual

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Pull the latch on both sides in the front of the server to remove the server out of the rack.
Front operator panel
The following illustration shows the controls and LEDs on the front operator panel.
Figure 6. Front operator panel
Table 4. Buttons and LEDs on the front operator panel
1
Power button/LED (green)
4
Identification button/LED (blue)
2
Drive activity LED (green)
5
System error LED (yellow)
3
Network activity LED (green)
1 Power button/LED (green)
Press this button to turn the server on and off manually. The states of the power LED are as follows:
Off:
No power supply is properly installed, or the LED itself has failed.
Flashing rapidly (4 times per second):
The server is turned off and is not ready to be turned on. The
power-control button is disabled. This will last approximately 5 to 10 seconds.
Flashing slowly (once per second):
The server is turned off and is ready to be turned on. You can press
the power-control button to turn on the server.
Solid on:
The server is turned on.
2 Drive activity LED (green)
When this LED is flashing, it indicates that the drives are in use.
3 Network activity LED (green)
When this LED is lit, it indicates that the server is transmitting to or receiving signals from the Ethernet LAN.
4
Identification button/LED (blue)
Use this blue LED to visually locate the server among other servers. This LED is also used as a presence
detection button. You can use Lenovo XClarity Administrator to light this LED remotely.
5 System error LED (yellow)
When this yellow LED is lit, it indicates that a system error has occurred. This LED can be controlled by the
Lenovo XClarity Controller.
Rear view
This section contains information about the LEDs and connectors on the rear of the server.
The following illustrations show the connectors and LEDs on the rear of the server.
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ThinkSystem SR150 Maintenance Manual