• 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
monitors) can cause screen jitter or wavy, unreadable, rolling, or distorted screen images. If this
happens, turn off the monitor.
Attention: Moving a color monitor while it is turned on might cause screen discoloration.
Move the device and the monitor at least 305 mm (12 in.) apart, and turn on the monitor.
Notes:
a. To prevent diskette drive read/write errors, make sure that the distance between the monitor and any
external diskette drive is at least 76 mm (3 in.).
b. Non-Lenovo monitor cables might cause unpredictable problems.
2. Reseat the monitor cable.
3. Replace the components listed in step 2 one at a time, in the order shown, restarting the server each
time:
a. Monitor cable
b. Video adapter (if one is installed)
c. Monitor
4. If the problem remains, contact Lenovo Support.
The wrong characters appear on the screen
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. See
“Update the
firmware” on page 445
.
Monitor display fails when connected to the VGA connector of the server
Complete the following steps until the problem is solved:
1. Check and ensure that the server is turned on.
2. If there is a KVM connected between the monitor and server, remove the KVM.
3. Reconnect the monitor cables and ensure that the cables are connected correctly.
4. Try to use a monitor that has been verified without a problem.
5. If the monitor display still fails, do the following:
• If the VGA connector is on the front of the server:
a. Remove and reconnect the internal VGA cable. Ensure that the VGA cable is correctly connected
to the system board assembly. See
Chapter 6 “Internal cable routing” on page 271
b. Replace the left rack latch with VGA. See “Rack latches replacement” on page 192.
c. (Trained technician only) Replace the system I/O board.
• If the VGA connector is on the rear of the server:
a. (Trained technician only) Replace the system I/O board.
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ThinkSystem SR650 V3 User Guide
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