6-10 Troubleshooting and Repair
Run-time Error Messages
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 determined.
Turn the power off and then on
again.
Quick Troubleshooting
This section summarizes problems that may develop during system operation
and lists suggested corrective actions to isolate problem properly.
Quick Troubleshooting
Problem or Symptoms
Corrective Actions
No power
Check that the AC adapter is plugged into the DC-IN connector of the
notebook. Also, that the AC adapter is plugged into a properly grounded
AC power outlet.
If using the battery as main power source, check if the battery pack is of
the right type, charged and is inserted correctly.
Check the internal DC-DC board of the notebook if it is inserted into the
motherboard connector properly. Otherwise, replace the DC-DC board.
Power LED is on but no
display and system does not
turn on
Check memory module if it is inserted properly. Try to place the module
also on the other slot. Check also the memory module underneath the
CPU module.
Check CPU module if it is inserted properly.
Replace memory module, CPU module, or DC-DC board.
