IBM 8670 Installation Guide - Page 43

Solving problems, POST beep code descriptions - beeps at startup then restart

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Chapter 5. Solving problems This section provides basic troubleshooting information to help you resolve some common problems that might occur while setting up your server. If you cannot locate and correct the problem using the information in this section, see Chapter 6, "Getting help and technical assistance", on page 39, the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD, and the "Server Support" flowchart in the front of this book. POST beep code descriptions POST emits one beep to signal successful completion. If POST detects a problem during startup, other beep codes might occur. You can use the following beep code descriptions to help identify and resolve problems that are detected during startup. Note: See the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD for more information about the POST beep codes. Table 3. POST beep code descriptions Beep code Descriptions of the POST beep codes No beep Call for service. Continuous If no video appears, the startup microprocessor failed. Verify that the startup microprocessor is installed correctly. If it is, call for service. One short POST completed successfully. One beep also occurs after POST if you enter an incorrect password. Two short Follow the instructions that appear on the screen. Three short POST detected a system memory error. Verify that the memory is installed correctly. If it is, replace the failing memory module. Repeating short The system board might contain a failing component. 1. Verify that the keyboard and pointing devices are connected properly. 2. Ensure that nothing is resting on the keyboard. 3. Disconnect the pointing device; then, restart the server. If the problem goes away, replace the pointing device. If the problem remains, call for service. One long and one If the video controller on the system board is being used, call for service. If you installed an short optional video adapter, replace the failing adapter. One long and two A video I/O adapter ROM is not readable, or the video subsystem is defective. If you installed an short optional video adapter, replace the failing adapter. If the problem remains, call for service. One long and three short The system-board video subsystem has not detected a monitor connection to the server. Ensure that the monitor is connected to the server. If the problem remains, replace the monitor. Two long and two POST does not support the optional video adapter. Replace the optional video adapter with one short that is supported by the server or use the integrated video controller. All other beep codes 1. Verify that the system memory modules are installed correctly. 2. Turn off the server; then, restart the server. If the problem remains, call for service. © Copyright IBM Corp. 2003 31

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Chapter 5. Solving problems
This section provides basic troubleshooting information to help you resolve some
common problems that might occur while setting up your server.
If you cannot locate and correct the problem using the information in this section,
see Chapter 6, “Getting help and technical assistance”, on page 39, the
Hardware
Maintenance Manual and Troubleshooting Guide
on the IBM
xSeries Documentation
CD, and the “Server Support” flowchart in the front of this book.
POST beep code descriptions
POST emits one beep to signal successful completion. If POST detects a problem
during startup, other beep codes might occur. You can use the following beep code
descriptions to help identify and resolve problems that are detected during startup.
Note:
See the
Hardware Maintenance Manual and Troubleshooting Guide
on the
IBM
xSeries Documentation
CD for more information about the POST beep
codes.
Table 3. POST beep code descriptions
Beep code
Descriptions of the POST beep codes
No beep
Call for service.
Continuous
If no video appears, the startup microprocessor failed. Verify that the startup microprocessor is
installed correctly. If it is, call for service.
One short
POST completed successfully. One beep also occurs after POST if you enter an incorrect
password.
Two short
Follow the instructions that appear on the screen.
Three short
POST detected a system memory error. Verify that the memory is installed correctly. If it is,
replace the failing memory module.
Repeating short
The system board might contain a failing component.
1.
Verify that the keyboard and pointing devices are connected properly.
2.
Ensure that nothing is resting on the keyboard.
3.
Disconnect the pointing device; then, restart the server. If the problem goes away, replace the
pointing device. If the problem remains, call for service.
One long and one
short
If the video controller on the system board is being used, call for service. If you installed an
optional video adapter, replace the failing adapter.
One long and two
short
A video I/O adapter ROM is not readable, or the video subsystem is defective. If you installed an
optional video adapter, replace the failing adapter. If the problem remains, call for service.
One long and
three short
The system-board video subsystem has not detected a monitor connection to the server. Ensure
that the monitor is connected to the server. If the problem remains, replace the monitor.
Two long and two
short
POST does not support the optional video adapter. Replace the optional video adapter with one
that is supported by the server or use the integrated video controller.
All other beep
codes
1.
Verify that the system memory modules are installed correctly.
2.
Turn off the server; then, restart the server. If the problem remains, call for service.
© Copyright IBM Corp. 2003
31