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
d. (Trained technician only) System board.
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 “Firmware
Management controller remote presence cannot work
The management controller remote presence function is unable to display the system screen when an
optional video adapter is present. To use the management controller remote presence function, remove the
optional video adapter or use the onboard VGA as the display device.
Network problems
See this section to resolve issues related to networking.
• “Could not log in using LDAP account with SSL enabled” on page 242
• “Network connection is lost or with degraded performance” on page 242
• “Network settings can not be changed” on page 243
Could not log in using LDAP account with SSL enabled
Complete the following procedure to solve the problem:
1. Make sure that the license key is valid.
2. Generate a new license key and log in again.
Network connection is lost or with degraded performance
Complete the following procedure to solve the problem:
1. Network connection may be lost or with degraded performance with exposure to conducted and/or
radiated frequency. Take appropriate actions in this case.
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ThinkSystem SR850 V2 Maintenance Manual
Summary of Contents for 7D31
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Page 71: ...Chapter 3 Internal cable routing 63 ...
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Page 236: ...Figure 133 System board and expansion board LEDs 228 ThinkSystem SR850 V2 Maintenance Manual ...
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