Some IBM monitors have their own self-tests. If you suspect a problem with your monitor, see the documentation that comes with the monitor for instructions for testing and adjusting the monitor. If you cannot diagnose the problem, call for service.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.
v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technical information, hints, tips, and new device drivers or to submit a request for information.
Symptom Action
Testing the monitor. 1. Make sure that the monitor cables are firmly connected.
2. Try using the other video port.
3. Try using a different monitor on the server, or try testing the monitor on a different server.
4. Run the diagnostic programs (see “Running the diagnostic programs” on page 137). If the monitor passes the diagnostic programs, the problem might be a video device driver.
5. (Trained technician only) Replace the system board
The 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 IMM2 remote presence function is disabled if you install an optional video adapter. To use the IMM2 remote presence function, remove the optional video adapter.
3. If the server installed with external graphical adapters while turning on the server, the IBM logo displays on the screen after approximately 3 minutes. This is normal operation while the system loads.
4. Make sure that:
v The server is turned on. If there is no power to the server, see “Power problems” on page 115.
v The monitor cables are connected correctly.
v 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 damaged server firmware is not affecting the video; see
“Recovering the server firmware” on page 171 for information about recovering from server firmware failure.
7. Observe the checkpoint LEDs on the light path diagnostics panel; if the codes are changing, go to the next step.
8. Replace the following components one at a time, in the order shown, restarting the server each time:
a. Monitor
b. Video adapter (if one is installed) c. (Trained technician only) System board
9. See “Solving undetermined problems” on page 177 for information about solving undetermined problems.
The monitor works when you turn on the server, but the screen goes blank when you start some application programs.
1. Make sure that:
v The application program is not setting a display mode that is higher than the capability of the monitor.
v You installed the necessary device drivers for the application.
2. Run video diagnostics (see “Running the diagnostic programs” on page 137).
v If the server passes the video diagnostics, the video is good; see “Solving undetermined problems” on page 177 for information about solving undetermined problems.
v If the server fails the video diagnostics, (Trained technician only) replace the system board.
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, fluorescent lights, 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-IBM monitor cables might cause unpredictable problems.
2. Reseat the monitor cable
3. Replace the following components 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 Wrong characters appear on the
screen. 1. If the wrong language is displayed, update the server firmware with the correct language.
2. Reseat the monitor cable.
3. Replace the following components one at a time, in the order shown, restarting the server each time:
a. Monitor
b. (Trained technician only) System board
hints, tips, and new device drivers or to submit a request for information.
Symptom Action
Unable to wake the server using
the Wake on LAN feature. 1. If you are using the dual-port network adapter and the server is connected to the network using Ethernet 5 connector, check the system-error log or IMM2 system event log (see “Event logs” on page 26), make sure:
a. The room temperature is not too high (see “Features and specifications” on page 7).
b. The air vents are not blocked.
c. The air baffle is installed securely.
2. Reseat the dual-port network adapter (see “Removing the optional dual-port network adapter” on page 224 and “Installing the optional dual-port network adapter” on page 225).
3. Turn off the server and disconnect it from the power source; then, wait 10 seconds before restarting the server.
4. If the problem still remains, replace the dual-port network adapter.
Log in failed by using LDAP
account with SSL enabled. 1. Make sure the license key is valid.
2. Generate a new license key and log in again.