NEC Versa 550 Series, Service Manual

Page: 109 / 128

Troubleshooting and Repair 5-13
Table 5-4 BIOS Beep Codes
Beep
Code Diagnostic
Code
Description Test Performed
4-4-3 3Eh Math coprocessor test in
progress or failure. An integer load and store is performed
with the math coprocessor. If the
values do not match, an error message
will be displayed and POST will
continue.
RUN-TIME ERROR MESSAGES
The following table lists run-time error messages.
Table Section 5-5 BIOS Run-time Error Messages
Message Cause Action
I/O card parity interrupt at
address . Type (S)hut off
NMI, (R)eboot, other keys to
continue
Memory on a peripheral card
has failed. Check the memory cards
installed in the system.
Memory parity interrupt at
address . Type (S)hut off
NMI, (R)eboot, other keys to
continue
A memory chip(s) has failed. Check the memory on the
system board.
Unexpected HW interrupt
interrupt at address . Type
(R)eboot, other keys to
continue
Hardware problem. Not
displayed if the expected
interrupt handler is not
enabled. Check all hardware in the
system.
Unexpected SW interrupt
interrupt at address . Type
(R)eboot, other keys to
continue
Error(s) in the software
program. Not displayed if the
extended interrupt handler is
not enabled. Turn the machine off and
then on again. If doesn’t
work, check the program.
Unexpected type 02 interrupt
at
xxxxh . Type (S)hut off
NMI, (R)eboot, other keys to
continue
A parity error occurred, but
the source can not be
determine. Turn the power off and then
on again.