Lenovo System x3630 M4, Installation And Service Manual

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• Ethernet activity LEDs: When any of these LEDs are lit, they indicate that the server is transmitting to
or receiving signals from the Ethernet LAN that is connected to the Ethernet port that corresponds
to that LED.
• System-locator button/LED: Use this blue LED to visually locate the server among other servers. A
system-locator LED is also on the rear of the server. This LED is used as a presence detection button as
well. You can use Systems Director or IMM2 web interface to light this LED remotely. This LED is controlled
by the IMM2. The locator button is pressed to visually locate the server among the others servers.
• Check log LED: When this yellow LED is lit, it indicates that a system error has occurred. Check the error
log for additional information. See the “Event logs” on page 135 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. An LED on the light path diagnostics panel on the
operator information panel is also lit to help isolate the error. This LED is controlled by the IMM2.
• 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.
Note: Depending on the type of operator information panel installed in your server, the Reset button is on
the operator information panel or the light path diagnostics panel.
Light path diagnostics panel
This section shows the LEDs and controls on the light path diagnostics panel.
Note: The initial server configuration will not include the light path diagnostics panel. It is included when the
operator information panel is upgraded to the advanced operator information panel.
The light path diagnostics panel is available on the top of the advanced operator information panel. For
additional information about the light path diagnostics and LEDs on the light path diagnostics panel, see
“Light path diagnostics” on page 127 and “Light path diagnostics LEDs” on page 131.
The following illustration shows the LEDs and controls on the light path diagnostics panel.
Check log LED Reset button
System-error
LED System locator
LED
Power-control button/
power-on LED
Ethernet activity
LEDs
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Lenovo System x3630 M4 Installation and Service Guide