Lenovo ThinkSystem SE350 - Monitor and Video Problems

• All banks of memory are enabled. The server might have automatically disabled a memory bank when
it detected a problem, or a memory bank might have been manually disabled.
• There is no memory mismatch when the server is at the minimum memory configuration.
2. Reseat the memory modules, and then restart the server.
3. Check the POST error log:
• If a memory module was disabled by a systems-management interrupt (SMI), replace the memory
module.
• If a memory module was disabled by the user or by POST, reseat the memory module; then, run the
Setup Utility and enable the memory module.
4. Run memory diagnostics. When you start a solution and press the key according to the on-screen
instructions, the LXPM interface is displayed by default. (For more information, see the “Startup” section
in the LXPM documentation compatible with your server at
https://sysmgt.lenovofiles.com/help/topic/
lxpm_frontend/lxpm_product_page.html
.) You can perform memory diagnostics with this interface. From
the Diagnostic page, go to Run Diagnostic ➙ Memory test .
5. Re-enable all memory modules using the Setup Utility, and then restart the server.
6. (Trained technician only) Replace the system board.
Monitor and video problems
Use this information to solve problems related to a monitor or video.
•
“Incorrect characters are displayed” on page 155
• “Screen is blank” on page 155
• “Screen goes blank when you start some application programs” on page 156
• “The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted.” on page 156
• “The wrong characters appear on the screen” on page 156
• “Management controller remote presence cannot work” on page 156
Incorrect characters are displayed
Complete the following steps:
1. Verify that the language and locality settings are correct for the keyboard and operating system.
2. If the wrong language is displayed, update the server firmware to the latest level. See
“Firmware
updates” on page 11
.
Screen is blank
1. If the server is attached to a KVM switch, bypass the KVM switch to eliminate it as a possible cause of
the problem: connect the monitor cable directly to the correct connector on the rear of the server.
2. If the server installed with the graphical adapters while turning on the server, the Lenovo logo displays
on the screen after approximately 3 minutes. This is normal operation while the system loads.
3. Make sure that:
• The server is turned on and there is power supplied to the server.
• The monitor cables are connected correctly.
• The monitor is turned on and the brightness and contrast controls are adjusted correctly.
4. Make sure that the correct server is controlling the monitor, if applicable.
5. Make sure that the video output is not affected by corrupted server firmware; see
“Firmware updates”
on page 11
.
6. If the problem remains, contact Lenovo Support.
Chapter 4. Problem determination 155