![NEC MH4000 User Manual Download Page 152](http://html.mh-extra.com/html/nec/mh4000/mh4000_user-manual_251353152.webp)
6-12
Problem Solving
Power LED Does Not Light
Check the following:
■
Is the system operating normally? If so, the power
LED is probably defective.
■
Are there other problems with the system? If so,
check the items listed under System Cooling Fans
Do Not Rotate.
System Cooling Fans Do Not Rotate
Note: The system has five hot-swap cooling fan
modules. In addition, their are two cooling fans that
are an integral part of each power supply. There are no
serviceable components inside the power supply. If the
power supply is opened, the manufacturer's warranty is
voided. Three of the hot-swap fans are accessible from
the rear of the system. The other two hot-swap cooling
fans are accessible from the front of the system by
removing the left hand bezel (refer to the Upgrades
and Options chapter 5 in this guide.)
Check the following:
■
Is AC power available at the wall outlet?
■
Is the system power cord properly connected to the
system and the AC wall outlet?
■
Is the power connector for the cooling fan connected
to the system board?
■
Is the front panel power on indicator lit?
■
Is the cable from the front panel board connected to
the system board?
If the switches and connections are correct and the
power outlet is functioning, the power supply has
probably failed. Contact your service representative for
assistance.
Summary of Contents for MH4000
Page 1: ... Server MH4000 U s e r s G u i d e ...
Page 4: ...xx ...
Page 7: ...Bill Graham ...
Page 8: ...Chapter 1 Introduction Contents Organization 1 Notational Conventions 3 ...
Page 9: ...Bill Graham ...
Page 13: ...1 4 Introduction ...
Page 15: ...x ...
Page 44: ...x ...
Page 52: ...1231231 Billy Graham ...
Page 82: ...4 30 Configuring Your System ...
Page 138: ...5 54 Upgrades and Options Figure 5 26 Removing the Rear Fan modules ...
Page 140: ...dfgdfg ...
Page 168: ...6 28 Problem Solving ...
Page 170: ...Bill GrahamBill Graham ...
Page 179: ...Appendix B Memory Configurations Contents Memory DIMM Configurations 1 ...
Page 180: ...Bill Grahamaerrterterter ...
Page 184: ...B 4 Memory Configurations x ...
Page 185: ...Appendix C Option Boards Contents Introduction C 1 ...
Page 187: ...Appendix D Devices Contents Introduction 1 ...
Page 189: ...Appendix E Network Operating Systems Contents Introduction 1 ...
Page 192: ...rtyrtyrtyrtyry ...
Page 202: ...8 Glossary ...
Page 203: ......
Page 204: ... 101846 01 ...