IBM PC Server 520, Руководство пользователя

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Beep Codes
Note: If you cannot find the problem in the troubleshooting charts,
go to “Testing the System” on page 312 to test the system. If
you already have run the test program, or if running the test
does not reveal the problem, have the system serviced.
System Diskette Backup
Copy Problems
Action
Did you update the
backup copy of your
System Diskettes? Always keep a current backup copy of your system
programs. The copy should contain the current
configuration information and test programs for your
system. If the system programs are not current, the test
programs might not find the problem.
Some options come with an Option Diskette. Be sure
to copy this diskette to the System Diskettes when you
install the option. This Option Diskette contains the
option test program and configuration information. If
you installed an option, check its instructions to see if it
came with an Option Diskette.
Beep Codes
One beep and the appearance of text on the monitor indicates
successful completion of POST. More than one beep indicates that
POST detects an error.
Beep codes are sounded in a series of two or three sets of beeps.
The duration of each beep is constant, but the length of the pause
between the beeps varies. For example, a 1–2–4 beep code sounds
like one beep, a pause, two consecutive beeps, another pause, and
four more consecutive beeps.
It is possible to misinterpret a beep code if you do not understand
exactly how they work. Keeping in mind that POST error codes
vary in the length of the pause, and not the duration of the beep
tones will help you to distinguish the beeps.
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PC Server 520 User's Handbook for PCI/Micro Channel