Monitor And Video Problems - Lenovo ThinkSystem ST50 V2 Maintenance Manual

1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. If the server comes with Lenovo XClarity Provisioning Manager Lite, go to Diagnostics ➙ RAID Log.
Look for related errors and solve them. Otherwise, skip to the next step.
3. Review the document that came with the RAID adapter to make sure RAID is set properly.
Suspected RAID volume failure
The following two symptoms serve as indicator of ThinkSystem RAID adapter virtual driver failure:
• If the virtual driver application is installed in a bootable Operating System drive, the system, unable to
boot, stays in POST screen with message of Warning: No operating system found.
• Otherwise, the drive is missing from disk management options in the operating system.
Complete the following steps until the problem is solved.
1. Reboot the system, press F1 to go to Setup Utility, and select Advanced ➙ x350-8i ➙ Array
Configuration ➙ Manage Arrays ➙ Array X ➙ List Logical Drives ➙ Logical Drive X (Logical Drive
X) ➙ Logical Drive Details to check failure symptoms.

Monitor and video problems

Follow this procedure to solve problems related to a monitor or video.
• "Incorrect characters are displayed" on page 167
• "Screen is blank" on page 167
• "Screen goes blank when you start some application programs" on page 168
• "The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted." on page 168
Incorrect characters are displayed
Complete the following steps until the problem is solved.
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.
Screen is blank
Complete the following steps until the problem is solved.
1. If you have installed new DIMMs recently, make sure the capacity of the new DIMMs are the same as the
previously installed ones. If not, remove the newly installed DIMMs, and power on the server again.
2. If a graphical adapter is installed, wait for a while as it takes about three minutes before Lenovo logo is
displayed.
3. If there are other monitors that are connected to the server, remove them.
4. Make sure that:
• The server is turned on.
• The monitor cables are securely connected.
• The monitor is turned on with brightness and contrast controls adjusted correctly.
5. Disconnect the cable and select another video connector for connection.
6. Replace the following components one at a time, in the order shown, restarting the server each time:
a. Monitor cable
b. Monitor
.
Chapter 4 Problem determination
167