Rear view
This section contains information about the LEDs and connectors on the rear of the server.
The following illustrations show the connectors and LEDs on the rear of the server.
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0
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0
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Video
connector
Systems-management
Ethernet connector
(IMM2)
Serial
connector
USB 5 USB 6
Power-on
LED (green)
Locator
LED (blue)
System error
LED (yellow)
Slot 5,
PCIe
Gen 3
Slot 6,
PCIe
Gen 3
Slot 7,
PCIe
Gen 3
Slot 8,
PCIe
Gen 3
Power
supply 2
AC
DC
!
AC power LED (green)
DC power LED (green)
Power supply
error LED (yellow)
NMI
button
Power
connector
Slot 4,
PCIe
Gen 3
Slot 9,
ML
Power
supply 1
Power
connector
Ethernet
activity
LED
Ethernet
link LED
•
Systems-management Ethernet connector:
Use this connector to manage the server, by using a
dedicated management network. If you use this connector, the Integrated management module II (IMM2)
cannot be accessed directly from the production network. A dedicated management network provides
additional security by physically separating the management network traffic from the production network.
You can use the Setup utility to configure the server to use a dedicated systems-management network
or a shared network.
•
Video connector:
Connect a monitor to this connector. The video connectors on the front and rear of
the server can be used simultaneously.
Note:
The maximum video resolution is 1600 x 1200 at 75 Hz.
•
Serial connector:
Connect a 9-pin serial device to this connector. The serial port is shared with the IMM2.
The IMM2 can take control of the shared serial port to redirect serial traffic, using Serial over LAN (SOL).
•
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.
•
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.
•
Locator LED:
Use this LED to visually locate the server among other servers. You can use IBM Systems
Director to light this LED remotely. The IMM2 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.
•
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.
•
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.
22
Lenovo System x3750 M4 Installation and Service Guide
Содержание System x3750 M4
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