General Problem Determination Procedures; Resolving Suspected Power Problems - Lenovo ThinkEdge SE350 V2 User Manual

The following table describes the problems that are indicated by LEDs on XCC system management port.
For more information about other LEDs, see
187, and "LAN port LEDs" on page
Figure 141. XCC system management port LEDs
LED Description
Use this green LED to distinguish the network connectivity status:
XCC system
1
management port • Off: The network link is disconnected.
(1GbE RJ-45) port • Green: The network link is established.
link LED
XCC system Use this green LED to distinguish the network activity status:
2
management port • Blinking: Network link is transmitting and receiving actions.
(1 GbE RJ-45) • Off: Normal.
Ethernet port
activity LED

General problem determination procedures

Use the information in this section to resolve problems if the event log does not contain specific errors or the
server is inoperative.
If you are not sure about the cause of a problem and the power source is connected correctly, complete the
following steps to attempt to resolve the problem:
1. Power off the server.
2. Make sure that the server is cabled correctly.
3. Remove or disconnect the following devices if applicable, one at a time, until you find the failure. Power
on and configure the server each time you remove or disconnect a device.
• Any external devices.
• Surge-suppressor device (on the server).
• Printer, mouse, and non-Lenovo devices.
• Hard disk drives.
• Memory modules until you reach the minimal configuration for debugging that is supported for the
server.
To determine the minimal configuration for your server, see "Minimal configuration for debugging" in
"Technical specifications" on page
4. Power on the server.
If the problem appears to be a networking problem and the server passes all system tests, suspect a network
cabling problem that is external to the server.

Resolving suspected power problems

Power problems can be difficult to solve. For example, a short circuit can exist anywhere on any of the power
distribution buses. Usually, a short circuit will cause the power subsystem to shut down because of an
overcurrent condition.
ThinkEdge SE350 V2 User Guide
194
"Drive LEDs" on page
189.
4.
187, "Front operator panel LEDs" on page