The following minimum configuration is required for the server to start:
• One microprocessor in microprocessor socket 1
• One 4 GB DIMM in a DIMM connector that is associated with microprocessor socket 1 on the system
board
• One power supply
• Power cord
• Six cooling fans
The following illustration shows the locations of the power-supply LEDs.
000000
000000
000000
00
00
00
0
0
0
0
0
0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
Power-on
LED (green)
Locator
LED (blue)
System error
LED (yellow)
AC
DC
!
AC LED (green)
DC LED (green)
Power supply
error LED
(yellow)
The following table describes the problems that are indicated by various combinations of the power-supply
LEDs and the power-on LED on the operator information panel and suggested actions to correct the
detected problems.
Table 23. Power-supply LEDs
Power-supply LEDs
AC
DC
Error
Description
Action
Notes
On
On
Off
Normal operation
The server is
functioning
correctly.
Off
Off
Off
No ac power to the
server or a problem with
the ac power source.
1. Check the ac power to the
server.
2. Make sure that the power
cord is connected to a
functioning power source.
3. Restart the server. If the
error remains, check the
power-supply LEDs.
4. Replace the power supply.
This is a normal
condition when no
ac power is present.
Off
Off
On
No input power to
the power supply or
the power supply has
detected an internal
problem.
• Make sure that the power
cord is connected to a
functioning power source.
• Replace the power supply.
This happens only
when a second
power supply is
providing power to
the server.
Off
On
Off
Faulty power supply
Replace the power supply.
Off
On
On
Faulty power supply
Replace the power supply.
On
Off
Off
The system is off: The
system is connected to
ac power.
The server is
functioning
correctly.
171
Summary of Contents for System x3750 M4
Page 1: ...Lenovo System x3750 M4 Installation and Service Guide Machine Type 8753 ...
Page 6: ...iv Lenovo System x3750 M4 Installation and Service Guide ...
Page 144: ...130 Lenovo System x3750 M4 Installation and Service Guide ...
Page 170: ...156 Lenovo System x3750 M4 Installation and Service Guide ...
Page 319: ...Adapter SAS signal connector SAS signal cable Chapter 6 Removing and replacing components 305 ...
Page 321: ...Adapter SAS signal connector SAS signal cable Chapter 6 Removing and replacing components 307 ...
Page 324: ...8x2 5 inch backplane 310 Lenovo System x3750 M4 Installation and Service Guide ...
Page 492: ...478 Lenovo System x3750 M4 Installation and Service Guide ...
Page 522: ...508 Lenovo System x3750 M4 Installation and Service Guide ...
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Page 960: ...946 Lenovo System x3750 M4 Installation and Service Guide ...
Page 968: ...Taiwan BSMI RoHS declaration 954 Lenovo System x3750 M4 Installation and Service Guide ...
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Page 982: ...Part Number 00MV562 Printed in China 1P P N 00MV562 1P00MV562 ...