Power Checkout; Replacing The Battery - IBM Netfinity 5100 8658 11Y Manual

Table 5. UNIX LLI driver messages for the Ethernet
controller (continued)
pnt0-29
pnt0-31

Power checkout

Power problems can be difficult to troubleshoot. For
instance, a short circuit can exist anywhere on any of the
power distribution busses. Usually a short circuit will cause
the power subsystem to shut down because of an
overcurrent condition.
A general procedure for troubleshooting power problems is
as follows:
1. Power off the system and disconnect the AC cord(s).
2. Check for loose cables in the power subsystem. Also
check for short circuits, for instance if there is a loose
screw causing a short circuit on a circuit board.
3. Remove adapters and disconnect the cables and
power connectors to all internal and external devices
until system is at minimum configuration required for
power on (see "Minimum operating requirements" on
page 184).
4. Reconnect the AC cord and power on the system. If
the system powers up successfully, replace adapters
and devices one at a time until the problem is isolated.
If system does not power up from minimal
configuration, replace FRUs of minimal configuration
one at a time until the problem is isolated.
To use this method it is important to know the minimum
configuration required for a system to power up (see page
184). For specific problems, see "Power error messages"
on page 180.

Replacing the battery

IBM has designed this product with your safety in mind.
The lithium battery must be handled correctly to avoid
possible danger. If you replace the battery, you must
adhere to the following instructions.
36
: Netfinity 5100 Type 8658 Models 11Y, 21Y, 31Y,
41Y, 51Y, 1RY, 2RY, 3RY, 4RY, 5RY
The IRQ number is already in use.
Explanation: The specified I/O address is already in
use. Action: Run the NETCONFIG program to
modify your hardware settings.
I/O address is not necessary for the PCI device.
Explanation: The I/O address specified is not
required. Action: Remove the assigned I/O address
specified for the Ethernet controller