Lenovo ThinkCentre A30 Quick Reference Manual page 47

Beep pattern
1 long and 2 short
beeps
1 long beep followed
by a series of short
beeps
2 short beeps
1 short - 3 short - 3
short - 1 short
4 sets of 4 short
beeps
Here are some general guidelines for working with POST beep codes:
v Record any beep patterns that you hear. If you call for service, you will be
asked for the beep patterns.
v If the beep pattern is not in this book, more in-depth troubleshooting is
required.
– If the operating system starts when you turn on your computer, use
Access IBM to learn how to run IBM Enhanced Diagnostics and see the
entire online troubleshooting procedures.
– If the operating system will not start, have the computer serviced.
Description
No on-screen message. Beeps
occur before video
initialization.
External ROM failure (such as
VGA)
A POST error occurred.
No memory or no
configuration memory
POV tamper; POV binding
information does not match.
Action
Remove and reinstall the dual
inline memory modules
(DIMMs).
If the problem persists, have the
computer serviced.
If the problem persists, have the
computer serviced.
If you have changed the
hardware configuration, go into
the IBM Setup Utility and exit to
save setting. Otherwise refer to
error code section to resolve
error.
Reinstall the memory.
If problem persists, replace the
memory.
Make sure the original POV card
is properly in its socket.
Chapter 4. Troubleshooting and diagnostics
21