Beep Codes - Fujitsu Lifebook A1010 User Manual

BEEP CODES

Beep codes provide a way to debug the system prior to
video initialization. The BIOS supports two types of
beep codes.
The first type consists of a series of beeps which are
emitted either as a long or short beep. These codes are
broken into eight segments with the 4th and 8th
segments generating a pause.
Beep Code
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
S = Short, L = Long, P = Pause
Beep Sequence - Each (*) represents
Beep Code
one beep
10 *
11 **
12 ***
13 ****
14 *****
Type 1 Beep Codes
Beep Sequence
S-S-S-P-S-S-L-P
S-S-S-P-S-L-S-P
S-S-S-P-S-L-L-P
S-S-S-P-L-S-S-P
S-S-S-P-L-S-L-P
S-S-S-P-L-L-S-P
S-S-S-P-L-L-L-P
S-S-L-P-S-S-S-P
S-S-L-P-S-S-L-P
S-S-L-P-S-L-S-P
S-S-L-P-S-L-L-P
S-S-L-P-L-S-S-P
S-S-L-P-L-S-L-P
S-S-L-P-L-L-S-P
S-S-L-P-L-L-L-P
S-S-L-P-S-S-S-P
Type 2 Beep Codes
T r o u b l e s h o o t i n g
The second type produces a known number of beeps.
For example, Beep Code 10 produces one short beep,
Beep Code 11 produces 2 short beeps, etc.
The BIOS supports up to sixteen type 1 beep codes and
nine type 2 beep codes. Please note that type 1 beep
codes 0 - 8 have a pre-determined function. Type 1 codes
9 - F and all type 2 beep codes are modifiable by devel-
opers. The following table lists the beep codes along with
the beep sequence and meaning.
The DMA page registers are faulty.
The refresh circuitry is faulty.
The ROM checksum is incorrect.
The CMOS RAM test failed.
The DMA controller is faulty.
The interrupt controller failed.
The 8042 keyboard controller failed.
No video adapter was found.
No RAM is installed. No message is displayed.
Modifiable - Can be used for any purpose.
Modifiable - Can be used for any purpose.
Modifiable - Can be used for any purpose.
Modifiable - Can be used for any purpose.
Modifiable - Can be used for any purpose.
Modifiable - Can be used for any purpose.
Modifiable - Can be used for any purpose.
15 ******
16 *******
17 ********
18 *********
Meaning
61