Solving Simple Problems - NEC Express5800 1160Xd User Manual

Solving Simple Problems

Some system problems are simple ones and easy to solve. Check the corrective actions
to the general problems in the following table. If you still have a problem, record the
conditions of the problem and contact your system administrator or NEC support
personnel.
Some locations within the server have high voltage and therefore are
very dangerous. To avoid risk of electric shock, turn off all server
power and disconnect power cables.
The main power of your server is turned off by turning off the power
distribution board or removing the power cable.
Before touching the parts in the server, wait for at least 10 to
15 seconds until residual voltage is discharged.
An electrostatic discharge (ESD) can damage disk drives, option
boards, and other components. You can provide some ESD
protection by wearing an antistatic wrist strap attached to chassis
ground when handling system components.
Electronic devices can be easily damaged by static electricity. To
prevent damage, keep them in their protective packaging when they
are not installed in your system.
Symptom
No power.
You turned on AC power breakers for both
Power Bay Units at the rear of the cabinet.
Nothing is displayed on the console.
6-2 Problem Solving
!
! CAUTION
Table 6-1. Checklist for Solving General Problems
WARNING
Corrective Action
Check that power is on to the main AC power source.
Check that AC power cables are connected to the AC
power receptacles on both Power Bay Units.
Check that the console power is on.
Check that the Service Processor Boards and the
console are properly connected.
Are the cables correct?
Are the connectors fully inserted?
Check whether the screen display is suppressed by any
software by moving the mouse or pressing the Shift key.
Check if the console brightness setting needs
adjustment.