Note:
The maximum video resolution is 1600 x 1200 at 75 Hz.
•
USB connectors:
Connect a USB device, such as a USB mouse, keyboard, or other device, to any of
these connectors.
Operator information panel
The operator information panel consists of several LEDs: the Power-on button, Ethernet port activity,
Locator button, check log and System error.
The following illustration shows the controls and LEDs on the operator information panel.
Power-on
button/LED
Ethernet port
activity LEDs
Locator
button/LED
Check log
LED
System error
LED
Release
button
•
Power-on 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.
•
Ethernet port activity LEDs:
When any of these LEDs is flashing or flickering, it indicates 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.
•
Locator button/LED:
Use this blue LED to visually locate the server among other servers. This LED is
also used as a presence detection button. You can use IBM Systems Director to light this LED remotely.
This LED is controlled by the IMM. When you press the locator button, the LED will be lit and it will
continue to be lit until you press it again to turn it off. Press the locator button to visually locate the server
among other servers. It is also used as the physical presence for the Trusted Platform Module (TPM).
•
Check log LED:
When this yellow LED is lit, it indicates that there are errors that require further diagnosis.
Check the IMM2 event log for additional information. See “Event logs” on page 173 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 IMM.
Light path diagnostics
Light path diagnostics is a system of LEDs on various external and internal components of the server.
The light path diagnostics LEDs are on the top of the operator information panel. For additional information
about light path diagnostics and LEDs, see “Light path diagnostics” on page 163 and “Light path diagnostics
LEDs” on page 166.
20
Lenovo System x3750 M4 Installation and Service Guide
Содержание System x3750 M4
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