Chapter 4. Server controls, LEDs, and power
This section describes the controls and light-emitting diodes (LEDs) and how to turn
the server on and off.
Note:
The illustrations in this document show the 3.5-inch hard disk drive models,
unless specifically indicated otherwise.
Front view
The following illustration shows the controls, light-emitting diodes (LEDs), and
connectors on the front of the server.
1 Hard disk drive activity LED (green) 11 Rack release latch
2 Hard disk drive status LED (amber) 12 USB 2 connector
3 Drive bay 0 13 Optical drive eject button
4 Drive bay 2 14 Optical drive activity LED
5 Drive bay 4 15 Optical drive bay
6 Power-control button and LED 16 Drive bay 5
7 Operator information panel 17 Drive bay 3
8 Operator information panel release
latch
18 Drive bay 1
9 Video connector 19 Rack release latch
10 USB 1 connector
v Hard disk drive activity LEDs: This LED is used on SAS or SATA hard disk
drives. Each hot-swap hard disk drive has an activity LED, and when this LED is
flashing, it indicates that the drive is in use.
v Hard disk drive status LEDs: This LED is used on SAS or SATA hard disk
drives. When this LED is lit, it indicates that the drive has failed. If an optional
RAID controller is installed in the server, when this LED is flashing slowly (one
flash per second), it indicates that the drive is being rebuilt. When the LED is
flashing rapidly (three flashes per second), it indicates that the controller is
identifying the drive.
v Operator information panel: This panel contains controls and LEDs that
provides information about the status of the server.
v Operator information panel release latch: Slide the blue release latch to the
left to pull out the EasyLED panel and view the EasyLED LEDs and buttons. See
“EasyLED diagnostics panel” on page 17 for more information about the
EasyLED.
v Video connector: Connect a monitor to this connector. The video connectors on
the front and rear of the server can be used simultaneously.
v USB connectors: Connect a USB device, such as a USB mouse, keyboard, or
other device to any of these connectors.
© Lenovo 2008, 2009. Portions © IBM Corp. 2007, 2008. 15
