Lenovo System x3250 M4 Installation And Service Manual page 27

Reset button
Power-control button
Power-on LED
The following illustration shows the controls, LEDs, and connectors on the front of the four 2.5-inch
hot-swap hard disk drive model.
Reset button
Power-control button
Power-on LED
• 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 partially on, but not ready to be fully turned on.
The power-control button is disabled. This will last approximately 1 to 3 minutes.
– Flashing slowly (once per second): The server is ready to be turned on. You can press the
power-control button to turn on the server.
– Lit: The server is turned on.
• Power-control button:
Press this button to turn the server on and off manually.
• 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.
• Hard disk drive activity LED:
When this LED is flashing, it indicates that the associated hard disk drive is in use.
• System-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 IMM2.
• System-error LED:
When this yellow LED is lit, it indicates that a system error has occurred. This LED is controlled by
the IMM2.
• USB connectors:
Connect a USB device, such as a USB mouse, keyboard, or other device to any of these connectors.
• Optional DVD eject button:
Press this button to release a DVD or CD from the optional DVD drive.
Hard disk drive activity LED
Locator LED
System-error LED
USB 1 connector
USB 2 connector
Hard disk drive activity LED
Locator LED
System-error LED
USB 1 connector
USB 2 connector
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Chapter 1 The Lenovo System x3250 M4 Type 2583 server
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