Power-on LED
Power-control button
Reset button
Hard disk drive activity LED
Locator LED
System-error LED
USB 1 connector
USB 2 connector
The following illustration shows the controls, LEDs, and connectors on the front of
the hot-swap 2.5-inch hard disk drive model.
Power-on LED
Power-control button
Reset button
Hard disk drive activity LED
Locator LED
System-error LED
USB 1 connector
USB 2 connector
Hard disk drive status
LED (amber)
Hard disk drive activity
LED (green)
v Power-on LED: The states of the power-on LED are as follows:
Off: AC power is not present, or the power supply 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 1 to 3 minutes.
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.
Lit: The server is turned on.
Fading on and off: The server is in a reduced-power state. To wake the
server, press the power-control button or use the IMM Web interface. See
“Logging on to the Web interface” on page 69 for information on logging on to
the IMM Web interface.
v Power-control button: Press this button to turn the server on and off manually
or to wake the server from a reduced-power state.
v Reset button: Press this button to reset the server and run the power-on
self-test (POST). You might have to use a pen or the end of a straightened paper
clip to press the button.
v Hard disk drive activity LEDs: When this LED is flashing, it indicates that the
associated hard disk drive is in use.
v Locator LED: 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 IBM
Systems Director to light this LED remotely. This LED is controlled by the IMM.
v System-error LED: When this amber LED is lit, it indicates that a system error
has occurred.
v USB connectors: Connect a USB device, such as a USB mouse, keyboard, or
other device to any of these connectors.
v Optional DVD eject button: Press this button to release a DVD or CD from the
optional DVD drive.
14 IBM System x3250 M3 Types 4251, 4252, and 4261: Installation and User’s Guide
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