NEC POWERMATE PRO2180 - SERVICE 1996, Руководство по обслуживанию

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Maintenance and Troubleshooting 4-7
Table Section 4-4 PCI Error Messages
Message Description
Serial Port 1 Resource
Conflict Serial port 1 has requested a resource that is already in use.
Serial Port 2 Resource
Conflict Serial port 2 has requested a resource that is already in use.
Static Device Resource
Conflict A non Plug and Play ISA card has requested a resource that is
already in use.
System Board Device
Resource Conflict A non Plug and Play ISA card has requested a resource that is
already in use.
Diagnosing and Solving Problems
One beep indicates that the system has completed its POST test. If intermittent beeping
occurs, power off the system and try again. If the beeping persists, see Table Section 4-6.
The table summarizes problems that may develop during system operation and lists (in se-
quential
order) suggested corrective actions.
Table Section 4-6 Problems and Solutions
Problem Symptom Solution
No power Power lamp on computer
status panel will not light.
1 . Check that the power cord is plugged
into the AC connector on the computer.
Check that the other end of the cord is
plugged into a live properly grounded AC
power outlet.
2 . Check cable connections between
power supply and system board.
3 . Systematically eliminate possible
shorted PCBs by removing cables and
expansion boards.
4 . Check the +5 and +12 power supply
voltages (see Appendix A, Connector Pin
Assignments). Measure voltages with the
system board installed.
5 . Replace power supply.
6 . Replace system board.