Checkpoints
The system uses various types of checkpoints, error codes, and SRNs, which are
referred to throughout this book (primarily in Chapter 4, “Checkpoints”, on page 85,
Chapter 5, “Error Code to FRU Index”, on page 115, Chapter 6, “Loading the System
Diagnostics”, on page 181, and Chapter 10, “Parts Information”, on page 303). These
codes may appear in the service processor boot progress log, the AIX error log, and the
operator panel display. Understanding the definition and relationships of these codes is
important to the service personnel who are installing or maintaining the system.
Codes that can appear on the operator panel or in error logs are as follows:
Checkpoints
Checkpoints display in the operator panel from the time ac power is connected
to the system until the AIX login prompt is displayed after a successful
operating system boot. These checkpoints have the following forms:
E000 - E075
These checkpoints display from the time ac power is connected to the
system until the OK prompt displays on the operator panel display.
During this time, the service processor performs self-test and NVRAM
initialization.
E0A0 - E0E1
When power on is initiated, the service processor starts built-in
self-test (BIST) on the central electronics complex (CEC). VPD data is
read.
E0E2 - E2xx
This range indicates that the system processor is in control and is
initializing system resources.
E3xx These codes indicate that the system processor is running memory
tests.
E1xx The system firmware attempts to boot from devices in the boot list.
Control is passed to AIX when E105 (normal mode boot) or E15B
(service mode boot) displays on the operator panel display.
0xxx and 2xxx
0xxx codes are AIX checkpoints and configuration codes. Location
codes may also be shown on the operator panel display during this
time.
Error Codes
If a fault is detected, an 8-digit error code is displayed in the operator panel
display. A location code may be displayed at the same time on the second line
of the display.
Checkpoints can become error codes if the system fails to advance past the
point at which the code was presented.
For a list of checkpoints, see Chapter 4, “Checkpoints”, on page 85. Each entry
provides a description of the event and the recommended action if the system
fails to advance.
30 Service Guide
To Next Page
Loading...
