Table of Contents
Advertisement
Table 4. System pulse LEDs (continued)
LED
IMM2 heartbeat
Diagnostic programs and messages
The diagnostic programs are the primary method of testing the major components
of the server. As you run the diagnostic programs, text messages are displayed on
the screen and are saved in the test log. A diagnostic text message indicates that a
problem has been detected and provides the action you should take as a result of
the text message.
Make sure that the server has the latest version of the diagnostic programs. To
download the latest version, go to http://www.ibm.com/supportportal/.
Utilities are available to reset and update the diagnostics code on the integrated
USB flash device, if the diagnostic partition becomes damaged and does not start
the diagnostic programs. For more information and to download the utilities, go to
http://www.ibm.com/systems/support/supportsite.wss/docdisplay?lndocid=MIGR-
5072294&brandind=5000008.
Running the diagnostic programs
Note: The DSA memory test might take up to 30 minutes to run. If the problem is
not a memory problem, skip the memory test.
To run the diagnostic programs, complete the following steps:
1. If the server is running, turn off the server and all attached devices.
2. Turn on all attached devices; then, turn on the server.
3. When the prompt <F2> Dynamic System Analysis is displayed, press F2.
190
System x iDataPlex dx360 M4 Types 7912 and 7913: Problem Determination and Service Guide
Description
IMM2 heartbeat boot process.
Note: The DSA Preboot diagnostic program might appear to be unresponsive
for an unusual length of time when you start the program. This is normal
operation while the program loads. The loading process may take up to 10
minutes.
Action
The following steps describe the different
stages of the IMM2 heartbeat sequencing
process.
1. When this LED is blinking fast
(approximately 4Hz), this indicates, that the
IMM2 code is in the loading process.
2. When this LED goes off momentarily, this
indicates that the IMM2 code has loaded
completely.
3. When this LED goes off momentarily and
then starts blinking slowing (approximately
1Hz), this indicates that IMM2 is fully
operational. You can now press the
power-control button to power-on the server.
4. If this LED does not blink within 30 seconds
of connecting a power source to the server,
(trained service technician only) Replace
the system board.
Advertisement
Table of Contents
