IBM System x3610, Problem Determination And Service Manual

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Table 12. (continued)
Color Condition Description Action
Amber Lit One of the following conditions:
v
No ac power to the power
supply (redundant power
supplies)
v
Power supply has shut down
because of one of the
following critical events:
– Power supply failed
– Fuse blown (redundant
power supplies)
– Under- or over-voltage
– Fan failed
1. Make sure that the power
supply is receiving ac power
from a known good source.
2. Replace the power supply.
Amber Flashing Warning of one of the following
potential failure conditions. The
power supply continues to
operate.
v High temperature
v High power or current
v Slow fan
1. Make sure that the power
supply is receiving ac power
from a known good source.
2. Replace the power supply.
Solving Ethernet controller problems
The method that you use to test the Ethernet controller depends on which operating
system you are using. See the operating-system documentation for information
about Ethernet controllers, and see the Ethernet controller device-driver readme file.
Try the following procedures:
v Make sure that the correct device drivers, which come with the server, are
installed and that they are at the latest level.
v Make sure that the Ethernet cable is installed correctly.
– The cable must be securely attached at all connections. If the cable is
attached but the problem remains, try a different cable.
– You must use Category 5 cabling.
v
Determine whether the hub supports auto-negotiation. If it does not, try
configuring the integrated Ethernet controller manually to match the speed and
duplex mode of the hub.
v
Check the Ethernet controller LEDs on the rear panel of the server.
If the Ethernet link/activity LED is off, there might be a defective connector or
cable or a problem with the hub. Make sure that the hub and network are
operating and that the correct device drivers are installed
v Check for operating-system-specific causes of the problem.
v Make sure that the device drivers on the client and server are using the same
protocol.
If the Ethernet controller still cannot connect to the network but the hardware
appears to be working, the network administrator must investigate other possible
causes of the error.
Chapter 5. Diagnostics
109