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POST beep codes
In addition to the beep codes that are described in "POST beep code descriptions" on
page 81, your computer might emit beep codes that are described in the following
table. The numbers and hyphens describe the sequence of beeps and pauses. For
example, a 1-2-3 beep code is one beep, a pause, two consecutive beeps, another
pause, and three more consecutive beeps.
Table 15. POST beep codes.
Beep code
1-1-2
Microprocessor register test has failed.
1-1-3
CMOS write/read test has failed.
1-1-4
BIOS ROM checksum has failed.
1-2-1
Programmable Interval Timer test has failed.
1-2-2
DMA initialization has failed.
1-2-3
DMA page register write/read test has failed.
1-4-3
Interrupt vector loading test has failed.
2-1-1
Secondary DMA register test has failed.
2-1-2
Primary DMA register test has failed.
2-1-3
Primary interrupt mask register test has failed.
2-1-4
Secondary interrupt mask register test has failed.
2-2-1
Interrupt vector loading has failed.
2-2-2
Keyboard controller test has failed.
2-2-3
CMOS power failure and checksum checks have failed.
2-2-4
CMOS configuration information validation has failed.
2-3-2
Screen memory test has failed.
2-3-3
Screen retrace tests have failed.
2-3-4
Search for video ROM has failed.
2-4-1
Screen test indicates the screen is operable.
3-1-1
Timer tick interrupt test has failed.
3-1-2
Interval timer channel 2 test has failed.
3-1-3
RAM test has failed above address hex 0FFFF.
3-1-4
Time-of-Day clock test has failed.
3-2-1
Serial port test has failed.
3-2-2
Parallel port test has failed.
3-2-3
Math Coprocessor test has failed.
3-2-4
Comparison of CMOS memory size against actual has
failed.
2-3-1
Screen initialization has failed.
3-3-2
I2C bus has failed.
Description
Action
Call for service.
Turn off the server, unplug all power cords,
and reconnect all power cords; then, restart
the server. If the problem persists, call for
service.
Chapter 6. Solving problems
83
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Troubleshooting
