1. If you are using the dual-port network adapter and the server is connected to the network using Ethernet5 connector, check the system-error log or IMM2 system event log (see “Event logs” on page 143),make sure:a. Fan 3 is running in standby mode, if Emulex dual port 10GBase-T embedded adapter is installed.b. The room temperature is not too high (see “Specifications” on page 2).c. The air vents are not blocked.d. The air baffle is installed securely.2. Reseat the dual-port network adapter.3. Turn off the server and disconnect it from the power source; then, wait 10 seconds before restarting theserver.4. If the problem still remains, replace the dual-port network adapter.Could not log in using LDAP account with SSL enabledComplete the following steps until the problem is resolved:1. Make sure that the license key is valid.2. Generate a new license key and log in again.Observable problemsUse this information to solve observable problems.• “The server immediately displays the POST Event Viewer when it is turned on” on page 157• “Server is unresponsive (POST is complete and operating system is running)” on page 157• “Server is unresponsive (cannot press F1 to start System Setup)” on page 158• “Voltage planar fault is displayed in the event log” on page 158• “Unusual smell” on page 159• “Server seems to be running hot” on page 159• “Cracked parts or cracked chassis” on page 159The server immediately displays the POST Event Viewer when it is turned onComplete the following steps until the problem is solved.1. Correct any errors that are indicated by the light path diagnostics LEDs.2. Make sure that the server supports all the processors and that the processors match in speed andcache size.You can view processor details from system setup.To determine if the processor is supported for the server, see http://www.lenovo.com/serverproven/.3. (Trained technician only) Make sure that processor 1 is seated correctly.4. (Trained technician only) Remove processor 2 and restart the server.5. Replace the following components one at a time, in the order shown, restarting the server each time:a. (Trained technician only) Processorb. (Trained technician only) System boardServer is unresponsive (POST is complete and operating system is running)Complete the following steps until the problem is solved.• If you are in the same location as the compute node, complete the following steps:Chapter 4. Problem determination 157