Verifying Proper Operation Of Key System Indicators; Confirming Loading Of The Operating System - NEC MC2200 User Manual

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.
Table 5-1 lists keys active during POST and provides a description of errors that may
occur.
ACTION/MESSAGE
To Abort Memory Test
If POST Beeps Before Video
Appears
If Monitor Displays Error
To Enter Setup
Enter BOOT Diskette
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.

Verifying Proper Operation of Key System Indicators

As POST determines the system configuration, it tests for the presence of each mass
storage device installed in the system. As each device is checked, its activity indicator
should turn on briefly. Check for the following:
T
Does the diskette drive activity indicator turn on briefly? If not, refer to "Diskette
Drive Activity Indicator Does Not Light" on page 5-9.
T
If a second diskette drive is installed, does its activity indicator turn on briefly? If
not, refer to "Diskette Drive Activity Indicator Does Not Light" on page 5-9.
T
If there is a hard disk drive or SCSI devices installed in the system, does the hard
disk drive activity indicator turn on briefly? If not, refer to "Hard Disk Drive
Activity Indicator Does Not Light" on page 5-9.

Confirming Loading of the Operating System

Once the system boots up, the operating system prompt appears on the screen. The
prompt varies according to the operating system. If the operating system prompt does
not appear, refer to "Problems with Application Software," page 5-10.
5-6 Problem Solving
Table 5-1. POST Keys and Errors
DESCRIPTION
Press ctrl+alt+s during the memory test.
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.
Note error; press F1 to continue boot or F2 to enter Setup. Refer to the
section BIOS User's Information in this chapter.
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.
If prompted, insert the boot diskette.