Diagnostic Programs And Messages - IBM x3250 M3 Problem Determination And Service Manual

Table 5. System pulse LEDs (continued)
LED
IMM 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, complete the following steps.
Note: Changes are made periodically to the IBM website. The actual procedure
might vary slightly from what is described in this document.
1. Go to http://www.ibm.com/systems/support/.
2. Under Product support, click System x.
3. Under Popular links, click Software and device drivers.
4. Click IBM System x3250 M3 to display the matrix of downloadable files for the
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
Description
IMM heartbeat boot process.
server.
Action
The following steps describe the
different stages of the IMM heartbeat
sequencing process.
1. When this LED is flashing fast
(approximately 4Hz), the IMM
code is in the loading process.
2. When this LED goes off
momentarily, this indicates that
the IMM code has loaded
completely.
3. When this LED goes off
momentarily and then starts
flashing slowing (approximately
1Hz), theIMM is fully operational.
You can now press the
power-control button to power-on
the server.
4. If this LED does not flash within
30 seconds of connecting a power
source to the server, complete the
following steps:
a. (Trained service technician
only) Use the IMM recovery
jumper to recover the firmware
(see Table 2 on page 16).
b. (Trained service technician
only) Replace the system
board.
Chapter 3. Diagnostics
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