NEC MT2200, Руководство пользователя

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6-5
Problem Solving
After System Has Been Running Correctly
Problems that occur after the system hardware and
software have been running correctly often indicate
equipment failure. However, many situations that are
easy to correct can also cause such problems. If you
have problems after the system has been running
correctly, check the following:
■
If you are running the software from a floppy disk,
try a new copy of the software.
■
If you are running the software from a hard disk
drive, try running it from a floppy. If the software
runs correctly, there may be a problem with the copy
on the hard disk. Reinstall the software on the hard
disk drive and try running it again. Make sure all
the necessary files are installed.
■
If the problem recurs, you may need to reformat the
hard disk drive. The drive, the drive controller, or
the system board may be defective.
■
If the problems are intermittent, there may be a
loose cable, dirt in the keyboard (if keyboard input
is incorrect), a marginal power supply, or other
random component failures.
■
If you suspect that a transient voltage spike, power
outage, or brownout might have occurred, reload the
software and try running it again. Symptoms of
voltage spikes include a flickering video display,
unexpected system reboots, and the system not
responding to user commands.
Note: Voltage spikes can corrupt or destroy data
files on the drive. If you are experiencing voltage
spikes on the power line, install a surge suppresser
between the power outlet and the system power
cord.
If the problem recurs after you have checked and
corrected all of the above items, refer to Additional
Troubleshooting Procedures in this chapter.