Lenovo System x3630 M4, Installation And Service Manual

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LED name Description
IMM 2 heartbeat LED Indicates the status of the boot process of the IMM2.
When the server is connected to power this LED flashes quickly to indicate that the
IMM2 code is loading. When the loading is complete, the LED stops flashing briefly
and then flashes slowly to indicate that the IMM2 if fully operational and you can
press the power-control button to start the server.
Standby power LED When this LED is flashing, it indicates that the server is connected to an ac power
source.
When this LED is lit, it indicates that the server is dc power on.
System board error LED System-board has failed.
Microprocessor mismatch LED When this LED is lit, it indicates that microprocessor 1 is not installed, or the
microprocessors do not have the same cache size and type, and clock speed.
DIMM error LEDs A memory DIMM has failed or is incorrectly installed.
Microprocessor error LED Microprocessor has failed, is missing, or has been incorrectly installed.
Light path LED Indicates whether or not the lightpath button is functional. If the light path LED is lit
after pressing the lightpath button, it indicates that the lightpath button is functioning
properly. By contrast, if the lightpath LED is not lit when pressing the light path
button, it means the lightpath button is not functioning properly.
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
Chapter 4
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Troubleshooting
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