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Motherboard
2.13 Diagnostic Messages (Port 80)
When the RI 45 PIII is powered up, it runs a self-test (POST = Power On Self
Test). If the POST detects a fault, it outputs the sequence of beeps (beep
code) assigned for the fault. Each beep code consists of 2 x 2 sequences.
In addition, the individual self-test steps are output at I/O port 80h. The
optional SafeCard allows these outputs to be displayed in hexadecimal code
at the front of the device.
Conversion table for the beep codes to hexadecimal representation:
Example:
2-58
Beeps
B
B
B
B
BB
BB
BB
BB
BBB
BBB
BBB
BBB
BBBB
BBBB
BBBB
BBBB
B
BBBB
BB
3
6
Check shutdown code
Hex Code
B
BB
BBB
BBBB
B
BB
BBB
BBBB
B
BB
BBB
BBBB
B
BB
BBB
BBBB
BBB
Beeps
Hexadecimal code
Meaning
RI 45 PIII, Manual
C79000-G7076-C817-01
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
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