Motorola 82543 用户手册

Gigabit Ethernet/82543 PMC Installation and Use

A-3

The 100 Mb/s mode has been 
selected, but the 100 Mb/s 
LED is not lit.

A CD signal could not be 
detected because the network 
cable is loose, disconnected, 
or connected to a device that 
does not support 100 Mb/s 
mode.

Check that the network cable 
is connected to the network 
port, that the connection is 
secure, and that the connected 
device supports 100 Mb/s 
mode.

The Ethernet speed does not 
change automatically.

Operating system settings are 
not set correctly.

Check whether the operating 
system setting for the Ethernet 
speed is 10, 100, or 1000 Mb/s 
or is set for automatic speed 
selection.
Configure network ports 
explicitly for the correct speed 
and duplex for the connected 
device.

The PMC is preventing the 
system from operating 
correctly.

The network cable is loose.

Secure the cable.

The PMC is faulty.

Disconnect the network cable 
from the PMC. Turn off the 
system, re-seat the PMC, and 
turn the system on again. If 
the problem persists, contact 
your system administrator or 
authorized Motorola 
distributor.

A conflict exists with another 
module.

Enable the PMC slot for bus 
mastering.
Check that the slot is enabled.