Specifications

2.5 Run-Time Error Messages

Run-time error messages are displayed on the monitor if an error occurs after

the system boots. Table 2–5 lists the run-time error messages by number.

Table 2–5 Run-Time Error Messages

POST No. Message Solution

988 Software NMI

987 Bus timeout NMI, slot X

986 Unresolved bus timeout NMI See 985.

985 Fail safe timeout NMI Expansion board malfunction. Replace

defective board.

984 Expansion board disabled Conﬁguration error or malfunctioning

expansion board. Run the SCU and

verify settings.

983 Unresolved I/O expansion board

NMI

See 982. Slot is unknown.

982 I/O expansion board NMI, slot X Malfunction or conﬁguration error for

expansion board in slot X. Run the

SCU and verify settings.

981 Memory parity error at XXXX–

YYYY

See 980.

980 Unresolved memory parity error Computer DRAM has failed. Replace

any failed SIMM.

971 Unexpected hardware interrupt This could be any hardware-related

problem. Check all cables, connections,

jumpers, and boards.

970 Unexpected software interrupt There is an error in a software utility.

Try turning the system off and then on

again.

2.6 Troubleshooting

Follow this general procedure to troubleshoot the system.

1. Press the reset button on the front panel. If your system fails to boot, turn

it off, wait 20 seconds, and then turn it back on.

2. Check for non-bootable diskette in A: (drive A).

3. Check for loose cables and connections.

4. Check the system and monitor indicator lights.

System Troubleshooting 2–19