Lenovo 3000 C100 0761 Supplementary Manual page 19

Beep code Message
short, short, short; DMA
long, short, long CONTROLLER
FAULTY
short, short, short; INTERRUPT
long, long, short CONTROLLER
FAILED
short, short, short; N/A
long, long, long
short, short, long; N/A
short, short, short
short, short, long; N/A
short, short, long
N/A KEYBOARD
CONTROLLER
FAILURE
N/A KEYBOARD
FAILURE
N/A CMOS FAILURE -
RUN SCU
N/A CMOS
CHECKSUM
INVALID - RUN
SCU
N/A RAM ERROR AT
LOCATION xxxxxx:
WROTE :xxxx
READ :xxxx
N/A PARITY ERROR AT
UNKNOWN
LOCATION
N/A PARITY ERROR AT
LOCATION xxxxxx
N/A FAULTY REFRESH
CIRCUIT
N/A PARITY ERROR AT
LOCATION xxxxxx
N/A NO INTERRUPTS
FROM TIMER 0
Description
The DMA controller does not work properly.
The interrupt controller does not work properly.
The keyboard controller failed to respond to the self-test
command.
No video device was found.
No RAM was installed.
The Keyboard controller failed during a system inquiry
about connected devices.
The keyboard fails to respond, or no keyboard is connected.
A CMOS data error has occured, probably because of a loss
of battery power.
The CMOS checksum error.
The RAM failed during a memory test at the indicated
location.
A parity error occured during a memory test at an unknown
location.
Parity error during memory test at the indicated location.
The RAM refresh circuit does not function properly.
A parity error occured during a memory test at the location
specified.
Timer 0 of the clock timer controller does not generate
system interrupts correctly.
Chapter 3. Solving computer problems
Solving computer problems
11