IBM System x3750 M4 Type 8733, Installation And Service Manual

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Ethernet activity LEDs: When 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.
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Ethernet link LEDs: When these LEDs are lit, they indicate that there is an
active link connection on the 100BASE-TX, 1000BASE-TX, or 10GBASE-TX
interface for the Ethernet port.
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Locator LED: Use this LED to visually locate the server among other servers.
You can use IBM Systems Director to light this LED remotely. IMM can also be
used to turn this LED on and off. This LED is functionally equivalent to the
locator LED on the front of the server.
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System-error LED: When this LED is lit, it indicates that a system error has
occurred. An LED on the light path diagnostics panel is also lit to help isolate
the error. This LED is functionally equivalent to the system-error LED on the
front of the server.
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Power-on LED: When this LED is lit and not flashing, it indicates that the server
is turned on. This LED is functionally equivalent to the power-on LED on the
front of the server. 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.
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USB connectors: Connect a USB device, such as a USB mouse, keyboard, or
other device, to any of these connectors.
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NMI button: Press this button to force a nonmaskable interrupt to the
microprocessor. You might have to use a pen or the end of a straightened paper
clip to press the button. You can also use it to force a blue-screen memory
dump. Use this button only when you are directed to do so by IBM Support.
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Ethernet adapter (10 Gb) slot: Insert the dual-port 10 Gb-T (copper) Ethernet
adapter or the dual-port 10 Gb SFP+ (fibre) Ethernet adapter into this slot (see
“System-board internal connectors” on page 26 for the location of the Ethernet
adapter slot on the system board.
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PCIe adapter slots:
Insert the PCIe adapters into these slots (see “System-board
internal connectors” on page 26 for the locations of the PCIe adapter slots on the
system board). See Table 15 on page 67 and “Installing an adapter” on page 66
for information about adapters.
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Power-supply connector: Connect the power cord to this connector.
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AC power LED: Each hot-swap power supply has an ac power LED and a dc
power LED. When the ac power LED is lit, it indicates that sufficient power is
being supplied to the power supply through the power cord. During normal
operation, both the ac and dc power LEDs are lit. For any other combination of
LEDs, see “Power-supply LEDs” on page 164.
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DC power LED: Each hot-swap power supply has a dc power LED and an ac
power LED. When the dc power LED is lit, it indicates that the power supply is
supplying adequate dc power to the system. During normal operation, both the
ac and dc power LEDs are lit. For any other combination of LEDs, see
“Power-supply LEDs” on page 164.
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System x3750 M4 Types 8722 and 8733: Installation and Service Guide