Monitor And Video Problems - Lenovo ThinkSystem SR665 V3 User Manual

5. Run the memory module diagnostics. When you start a server and press the key according to the on-
screen instructions, the Lenovo XClarity Provisioning Manager interface is displayed by default. You can
perform memory diagnostics from this interface. From the Diagnostic page, click Run Diagnostic ➙
Memory test ➙ Advanced Memory Test.
6. Replace the memory modules that fail Memory Test.

Monitor and video problems

Use this information to solve problems related to a monitor or video.
• "Incorrect characters are displayed" on page 221
• "Screen is blank" on page 221
• "Screen goes blank when you start some application programs" on page 221
• "The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted" on page 221
• "The wrong characters appear on the screen" on page 222
• "Monitor display fails when connected to the VGA connector of the server" on page 222
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" on page 189.
Screen is blank
Note: Make sure that the expected boot mode has not been changed from the UEFI to Legacy or vice versa.
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. The management controller remote presence function is disabled if you install an optional video adapter.
To use the management controller remote presence function, remove the optional video adapter.
3. If the server is installed with the graphical adapters while turning on the server, the Lenovo logo is
displayed on the screen after approximately 3 minutes. This is normal operation while the system loads.
4. 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.
5. Make sure that the correct server is controlling the monitor, if applicable.
6. Make sure that the video output is not affected by corrupted server firmware; See
on page 189.
7. If the problem remains, contact Lenovo Support.
Screen goes blank when you start some application programs
1. Make sure that:
• The application program is not setting a display mode that is higher than the capability of the monitor.
• You installed the necessary device drivers for the application.
The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted
1. If the monitor self-tests show that the monitor is working correctly, consider the location of the monitor.
Magnetic fields around other devices (such as transformers, appliances, fluorescents, and other
"Update the
"Update the firmware"
.
Chapter 8 Problem determination
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