Silicon Graphics 1450, Maintenance Manual

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After the System Has Been Running Correctly
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• If the problems persist, contact the software vendor's customer service
representative.
After the System Has Been Running Correctly
Problems that occur after the system hardware and software have been running correctly
often indicate equipment failure. Often the simple solutions for these problems, however,
can cause additional problems. Sometimes problems stem from changes made to the
system, such as hardware or software that has been added or removed. Use the following
checklist to trouble shoot such problems:
• If you are running the software from a diskette, try a new copy of the software.
• If you are running the software from a CD-ROM disk, try a different disk to see if
the problem occurs on all disks.
• If you are running the software from a hard drive, try running it from a diskette. If
the software runs correctly, there may be a problem with the copy on the hard drive.
Reinstall the software on the hard disk, and try running it again. Make sure all
necessary files are installed.
• 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.
Note: Symptoms of voltage spikes include random errors in data files, a flickering video
display, unexpected system reboots, and lack of response to user command. If you are
experiencing any of these symptoms, you may want to install a surge suppressor
between the power outlet and the system power cords.
Specific Problems and Corrective Actions
This section provides possible solutions for the following problems:
• Power light does not light.