Lenovo System x3850 X6 Installation And Service Manual page 40

• LCD system information display panel: This panel contains buttons that you use to navigate and select
the system information that you want displayed in the LCD display area. The LCD system information
display panel provides the following buttons:
– Scroll Up button: Press this button to scroll up or scroll within in the main menu to locate and select
the system information that you want displayed.
– Select button: Press this button to make your selection from the menu options.
– Scroll Down button: Press this button to scroll down or scroll within the main menu to locate and
select the system information that you want displayed.
• Front operator panel: This panel contains controls and LEDs that provide information about the status of
the server. For more information about the controls and LEDs on the front operator panel, see "Front
operator panel" on page 27.
• Power button/LED: Press this button to turn the server on and off manually or to wake the server from a
reduced-power state. The states of the power-on LED are as follows:
Off: Input power is not present, or the power supply or the LED itself has failed.
Flashing rapidly (3 times per second): The server is turned off and is not ready to be turned on. The
power-on button is disabled. This lasts approximately 10 seconds after input power has been applied
or restored.
Flashing slowly (once per second): The server is turned off and is ready to be turned on. You can
press the power-on button to turn on the server.
Lit: The server is turned on.
• Locate button/LED: Press this button to visually locate the server among other servers. When you press
the locate button, the LED is lit and remains lit until you press it again to turn it off. This button is also used
as the physical presence for the Trusted Platform Module (TPM). You can use management software,
such as Lenovo XClarity Administrator software, or the IMM2 interface to light this LED remotely. This LED
is controlled by the IMM2.
• Check log LED: When this LED is lit (yellow), it indicates that there are errors that require further
diagnosis. Check the IMM event log for additional information. See "Event logs" on page 161 for more
information about event logs.
• System-error LED: When this yellow LED is lit, it indicates that a system error has occurred. A system-
error LED is also on the rear of the server. This LED is controlled by the IMM2. Additional information can
also be seen on the LCD display panel (see "LCD system information display panel" on page 27 for more
information).
• 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. The Reset button is near the
Select button on the front operator panel.
• PCIe slots 11 and 12 error LEDs: When these LEDs are lit, they indicate that an error has occurred in
PCIe slots 11 and 12 on the storage book board.
• Storage board error LED: When this yellow LED is lit, it indicates that an error with the storage book
board has occurred.
• USB 2.0 connector: Connect a USB device, such as a USB mouse, keyboard, or other device, to any of
this connector.
• USB 3.0 connectors: Connect a USB device, such as a USB mouse, keyboard, or other device, to any of
these connectors.
• Video connector: Connect a monitor to this connector. The video connectors on the front and rear of the
server can be used simultaneously.
For more information about light path diagnostics, see "Light path diagnostics" on page 152 and "Light path
diagnostics LEDs description" on page 159.
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System x3850 X6 and x3950 X6 Installation and Service Guide