Dell POWEREDGE 1855 - Manual (Page 41)

7. Connect a known-working serial device to the DRAC/MC module.
If the serial device and DRAC/MC module still do not communicate with each other, see " Getting Help ."
8. Reseat the network cable to the network connector on the DRAC/MC module and to the network device.
9. Connect a known-working network cable between the DRAC/MC module and the network device.
10. Connect a known-working network device to the DRAC/MC module.
If the network device and DRAC/MC module still do not communicate with each other, see " Getting Help ."
Troubleshooting a Network Switch Module
Problem
l System cannot communicate with the network
l Network cable connections
l Network switch module and hub configuration settings
Action
1. Check the appropriate indicator on the network switch module. See " I/O Connectivity " in "Indicators, Codes, and Messages" for a description the
indicators for each type of network switch module.
l If the link indicator displays an error condition, check all cable connections.
See " I/O Connectivity " in "Indicators, Codes, and Messages" for the link indicator error conditions for your particular network switch module.
l Try another connector on the external switch or hub.
l If the activity indicator does not light, replace the network switch module. See " Chassis I/O Module ."
l If the server module requires a daughter card for a particular network switch module, ensure that the appropriate daughter card is installed. If so,
reseat the daughter card. See "
Daughter Card " in "Installing System Options."
If the network link indicator on the server module is green, then the server module has a valid link to the appropriate network switch module.
3. Ensure that the appropriate drivers are installed and the protocols are bound.
Troubleshooting Server Module Components
The following procedures describe how to troubleshoot the following components:
l Memory
l Hard drives
l Microprocessors
l Server module board
l Battery
Inside the Server Module
Figure 5 -1 shows an interior view of the major components of the server module.
Figure 5-1. Inside the Server Module
NOTE: To eliminate the possibility of a hardware problem with the module or its attaching devices, first ensure that the module is properly initialized and
configured. See the Configuration Guide and the documentation that came with the module before performing the following procedure.