IBM 7163, Problem Determination And Service Manual, Page: 163 / 210

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, System x3755 Type 8877 and 7163,” on page 25 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
System-error log message Action
Loader Watchdog Triggered
1. Reconfigure the loader watchdog timer to be a higher value
(twice the normal operating-system boot time). See the Remote
Supervisor Adapter II SlimLine and Remote Supervisor Adapter
II User’s Guide
for information.
2. Install the Remote Supervisor Adapter II SlimLine device driver
for the operating system.
3. Disable the loader watchdog. See the Remote Supervisor
Adapter II SlimLine and Remote Supervisor Adapter II User’s
Guide
.
4. Check the integrity of the installed operating system.
5. Reinstall the operating system with the applicable device
drivers.
Multiple fan failures Replace any missing or failed fans or power supplies.
Operator information panel is not plugged in
1. Make sure that the operator panel cable is connected correctly.
2. Replace the operator information panel assembly. See
“Removing the operator information panel assembly” on page
66 and “Replacing the operator information panel assembly” on
page 67.
OS Watchdog Triggered
1. Reconfigure the O/S watchdog timer to be a higher value. See
the Remote Supervisor Adapter II SlimLine and Remote
Supervisor Adapter II User’s Guide for information.
2. Reinstall the Remote Supervisor Adapter II SlimLine device
driver for the operating system.
3. Disable the O/S watchdog. See the Remote Supervisor
Adapter II SlimLine and Remote Supervisor Adapter II User’s
Guide
for information.
4. Check the integrity of the installed operating system.
5. Reinstall the operating system with applicable device drivers.
POST Watchdog Triggered
1. Reconfigure the POST watchdog timer to have a higher value
(consistent with the time it takes to complete POST). See the
Remote Supervisor Adapter II SlimLine and Remote Supervisor
Adapter II User’s Guide
for information.
2. Disable the POST watchdog. See the Remote Supervisor
Adapter II SlimLine and Remote Supervisor Adapter II User’s
Guide
for information.
Chapter 5. Diagnostics
147