IBM 2074, Информация по установке и обслуживанию

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POST
When you turn on the 2074, it performs a series of tests to check the operation of
2074 components and some of the options installed in the 2074. This series of tests
is called the power-on self-test or POST.
If POST finishes without detecting any problems, a single beep sounds, the first
screen of your operating system or application appears.
If POST detects a problem, more than one beep sounds and an error message will
appear on your screen.
Notes:
1. If you have a power-on password or administrator password set, you must type
the password and press ENTER when prompted, before POST will continue.
2. A single problem might cause several error messages. When this occurs, work
to correct the cause of the first error message. After you correct the cause of
the first error message, the other error messages usually will not occur the next
time you run the test.
Event/error logs: The POST error log contains the three most recent error
messages that the system generated during POST. The System Event/Error Log
contains all error messages issued during POST and all system status messages
from the Advanced System Management Processor.
To view the contents of the error logs, you must reboot the system and start the
Configuration/Setup Utility by pressing the
F1 key as soon as the IBM logo appears
on the screen. When the Setup Utility screen appears, select Event/Error Logs
from the menu.
Troubleshooting 2074 Hang Conditions
This section covers how to proceed in the event of a 2074 hang.
First make note of the LED display on each ESCON card.
Note: If the LED display is not scrolling, note what is displayed and report to the
next level of service.
If you were called due to a problem and can’t clear the screen, then the 2074 may
be hung. You may need to force an OS/2 dump. If the 2074 is hung with the
lighthouse screen saver displayed, then
CTRL-ALT-DEL or CTRL-ALT-F10+F10
will be ignored . You may need to force an NMI dump. Please refer to the
appropriate instructions by 2074 model type to force an NMI dump.
v 2074-001 NMI Dump: To force a dump in the 2074 Model 001, use a small
screwdriver to short out the pins at location J24 on the system board. For
location of the NMI pins, refer to the section entitled
″
Adapter Slot Locations
″
in
the
″
2074 Console Support Controller Installation and Maintenance Information
publication, form number G229-9028-01 (version 01).
v 2074-002 NMI Dump: To force an NMI dump in the 2074 Model 002, press the
NMI button on the back panel next to the video connector. See page 1-7, note 2
in the
″
2074 Console Support Controller Installation and Maintenance Information
publication, form number G229-9028-02 (version 2).
v 2074-003 NMI Dump: To force an NMI dump in the 2074 Model 003, please refer
to the
″
Rear View
″
on page 6 of the xSeries 235 Type 8671
″
Hardware
Chapter 2. Maintenance Information
2-5
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