Monitoring POST

Each time you turn on the system, the Power-On Self-Test (POST) runs automatically and checks the system board, processors, memory board, keyboard, and mouse.

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. When the memory test completes, the following is displayed:

Press <F2> to enter SETUP

Press <F2> to enter BIOS SETUP. When the utility appears, follow the instructions on your monitor to configure BIOS. See Chapter 3, "Configuring Your System." If you do not press <F2>, the above message remains for a few seconds and the boot process continues.

When this message appears:

Press <Ctrl> <A> for SCSISelectUtility!

Press <Ctrl+A> if you want to configure SCSI devices in your system. When the utility appears, follow the instructions on your monitor to configure the SCSI host adapter settings and run the SCSI disk utilities. See Chapter 3, Configuring Your System. If you choose not to run SCSISelectUtility, the boot process continues.

If POST finds an error, it displays an error message and, in case there is a problem with the display, it emits a series of long and short beeps. Write down any beep code emitted. This information is useful to your service representative.

Refer to the “Error Messages” 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

Initialization failed before video initialized. Most beep code

Video Appears

errors are fatal; initialization cannot continue. Refer to the

 

section “Error Messages” in this chapter.

If Monitor Displays Error

Note error; press F1 to continue boot or F2 to enter Setup.

 

Refer to the section “Error Messages” 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.

 

 

Problem Solving 5-9

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NEC 120Lg manual Monitoring Post, Post Keys and Errors, Action/Message Description