Problem Solving 5-7Monitoring POSTEach time you turn on the system, the Power-On Self-Test (POST) runs automatically and checksthe 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 andthe boot process continues.If POST finds an error, it displays an error message and, in case there is a problem with thedisplay, puts out a series of long and short beeps. Write down any beep code emitted. Thisinformation 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 eacherror 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 adescription of errors that may occur.The BIOS indicates errors by writing an error code to the PS/2-standard logging area in theExtended BIOS Data Area, and by displaying a message on the screen, which is sometimespreceded 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 ErrorsAction/Message DescriptionIf 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” inthis 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 duringinitialization to run Setup. If you do not press F2, the boot process continues.Enter BOOT Diskette If prompted, insert the boot diskette.
