NEC NEC Express5800 Series, Онлайн руководство по обслуживанию

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Problem Solving 5-7
Monitoring POST
Each time you turn on the system, the Power-On Self-Test (POST) runs automatically and checks
the system board, processor board, memory, keyboard, and most installed peripheral devices.
During the memory test, POST displays the amount of memory that it is able to access and test.
Depending on the amount of memory, it may take several minutes to complete the memory test.
Press
F2
to enter SETUP. If you do not press
F2
, the above message remains for a few seconds and
the boot process continues.
If POST finds an error, it displays an error message and, in case there is a problem with the
display, puts out a series of long and short beeps. Write down any beep code emitted. This
information is useful to your service representative.
Refer to the “BIOS User’s Information” section in this chapter for a list of items to check for each
error code and for an explanation of the error beep codes.
The POST Tests table at the end of this chapter lists keys active during POST and provides a
description of errors that may occur.
The BIOS indicates errors by writing an error code to the PS/2-standard logging area in the
Extended BIOS Data Area, and by displaying a message on the screen, which is sometimes
preceded by the POST Error Code. The error code will also be logged to the Event Logging area.
Report any error code to your service representative.
POST Keys and Errors
Action/Message Description
If POST Beeps Before Video Appears Initialization failed before video initialized. Most beep code errors are fatal;
initialization cannot continue. Refer to the section “BIOS User’s Information” in
this chapter.
If Monitor Displays Error
Note error; press
F1
to continue boot or
F2
to enter Setup. Refer to the section
“BIOS User’s Information” in this chapter.
To Enter Setup
Setup changes specific options, then writes to CMOS, NVRAM. Press
F2
during
initialization to run Setup. If you do not press
F2
, the boot process continues.
Enter BOOT Diskette If prompted, insert the boot diskette.