IBM x3755 Installation Guide - Page 58

Start Options, Fail Count

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v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Symptom Action 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. Make sure that: v The server is turned on. If there is no power to the server, see "Power problems" on page 49. v The monitor cables are connected correctly. v The monitor is turned on and the brightness and contrast controls are adjusted correctly. v No beep codes sound when the server is turned on. Important: In some memory configurations, the 3-3-3 beep code might sound during POST, followed by a blank monitor screen. If this occurs and the Boot Fail Count option in the Start Options of the Configuration/Setup Utility program is enabled, you must restart the server three times to reset the configuration settings to the default configuration (the memory connector or bank of connectors enabled). 3. Make sure that the correct server is controlling the monitor, if applicable. 4. Make sure that damaged BIOS code is not affecting the video. 5. Observe the checkpoint LEDs on the I/O board. 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. v If the server passes the video diagnostics, the video is good. v (Trained service technician only) If the problem remains, replace the I/O board. 46 IBM System x3755 Types 8877 and 7163: Installation Guide

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v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See the parts listing in the
Problem Determination and Service Guide
to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom
Action
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.
Make sure that:
v
The server is turned on. If there is no power to the server, see “Power
problems” on page 49.
v
The monitor cables are connected correctly.
v
The monitor is turned on and the brightness and contrast controls are
adjusted correctly.
v
No beep codes sound when the server is turned on.
Important:
In some memory configurations, the 3-3-3 beep code might sound
during POST, followed by a blank monitor screen. If this occurs and the
Boot
Fail Count
option in the
Start Options
of the Configuration/Setup Utility
program is enabled, you must restart the server three times to reset the
configuration settings to the default configuration (the memory connector or
bank of connectors enabled).
3.
Make sure that the correct server is controlling the monitor, if applicable.
4.
Make sure that damaged BIOS code is not affecting the video.
5.
Observe the checkpoint LEDs on the I/O board.
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.
v
If the server passes the video diagnostics, the video is good.
v
(Trained service technician only) If the problem remains, replace the I/O
board.
46
IBM System x3755 Types 8877 and 7163: Installation Guide