Instruction manual
Page 5-2 Chapter Five
Eagle 450 Installation and Technical Manual, Rev. 00
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If the configuration was recently changed (for example, you changed the files placed in system
memory during booting), return the system to its previous configuration.
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If you can, try to duplicate the problem conditions on another computer in your office. If you can
create the same failure, you can then attempt to find and fix it without disrupting your
customer’s daily routine or reconfiguring their computer.
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If it looks like the problem is related to a specific piece of hardware, either remove that
component from the computer (if it’s optional), or replace it with a known good component.
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Try turning off or changing software and/or hardware options that may be contributing to the
problem. For example, you could change the number of read-ahead blocks in a disk driver, turn
off (or on) write caching, etc.
Finally, remember that we’re always here to help. Just call the Alpha Micro Technical Assistance Center
at 800/487-7787.
FRONT PANEL STATUS DISPLAY CODES
During normal operation, the two-digit display on the front panel displays a zero. When the computer
boots, a series of codes appears in rapid succession on the display as the AMOS operating system gets
itself up and running. If an error occurs during booting, one of these codes may remain on the status
display. This can tell you what was happening when the error occurred.
Some of these codes may also occur any time the computer is running. If you have a problem with the
computer, check the front panel; if anything other than 0 is displayed, look it up in this table to help
diagnose the problem.
Front Panel
Status Code
Description
0 Computer is functioning normally.
4 System has gone under 100 queue blocks remaining. This code displays
until replaced by another, even if the system now has over 100 queue
blocks. At a convenient time, allocate more system queue blocks in the
system initialization file.
7 LEVEL7 debugger is active. Will occur only when the LEVEL7 software is
loaded in system memory. Refer to the LEVEL7 documentation for details.
Steady 8 The computer's internal DC power supply has detected an internal power
failure.
Flashing 8 UPS low battery condition has existed for more than two minutes. The
system has executed a shutdown procedure. Write-caching is deactivated on
any disk drives which had it enabled. The system is now in a HALT
condition until the batteries in the UPS are completely dead. Turn off
system power! To reset this condition, you must get the UPS primary power
back on line. Check the UPS input power breaker and be sure it's ON! The
system must be rebooted with a hardware reset.