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1. If the green hard disk drive activity LED does not flash when the drive is in use, run the diagnostics tests
for the hard disk drives. When you start a server and press F11, the Lenovo XClarity Provisioning
Manager Lite V2 interface is displayed by default. You can perform hard disk drive diagnostics from this
interface. From the Diagnostic page, click Run Diagnostic ➙ HDD test.
2. If the drive passes the test, replace the backplane.
3. If the drive fails the test, replace the drive.
Yellow hard disk drive status LED does not represent actual state of associated drive
Complete the following steps until the problem is solved:
1. Turn off the server.
2. Reseat the SAS/SATA adapter.
3. Reseat the backplane signal cable and backplane power cable.
4. Reseat the hard disk drive.
5. Turn on the server and observe the activity of the hard disk drive LEDs.
Monitor and video problems
Use this information to solve problems related to a monitor or video.
• "Incorrect characters are displayed" on page 213
• "Screen is blank" on page 213
• "Screen goes blank when you start some application programs" on page 214
• "The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted" on page 214
• "The wrong characters appear on the screen" on page 214
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 8.
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. 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 displays
on the screen after approximately 3 minutes. This is normal operation while the system loads.
4. Make sure that memory modules installed in the server are the same type.
5. Make sure that:
• The server is turned on. If there is no power to the server, the screen will be blank.
• The monitor cables are connected correctly.
• The monitor is turned on and the brightness and contrast controls are adjusted correctly.
6. Make sure that the correct server is controlling the monitor, if applicable.
7. Make sure that corrupted server firmware is not affecting the video; see "Firmware updates" on page 8.
8. Observe the checkpoint LEDs on the system board; if the codes are changing, go to step 6.
9. Replace the following components one at a time, in the order shown, restarting the server each time:
.
Chapter 4
Problem determination
213
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