User`s manual

T-8

Troubleshooting CPU Boards: Solving Startup Problems

Table T-4. Troubleshooting

MVME166/167/176/177/187

188/188A

Boards Only

Condition Possible Problem Try This:

III. Debug

prompt

1xx-Bug>

does not appear

at powerup, and

the board does

not auto boot.

A. Debugger

EPROM/Flash

may be missing

1. Disconnect all power from your system.

2. Check that the proper debugger EPROM or

debugger Flash memory is installed per this manual.

3. Reconnect power.

4. Restart the system by “double-button reset”: press

the

RESET and ABORT switches at the same time; release

RESET first, wait seven seconds, then release ABORT.

5. If the debug prompt appears, go to step IV or step V,

as indicated. If the debug prompt does not appear, go

to step VI.

B. The board

may need to be

reset.