IBM CMX58886CX user manual Main Menu Setup Fields, Power On Self Test Post Codes

Main Menu Setup Fields

The following is a list of Main Menu Setup fields.

Table 35 Main Menu Setup Fields

Field	Active Keys	Selections
Main	Press Enter to select	Access system information such as BIOS version, EPLD
		version, and CMOS time and date settings
Advanced	Press Enter to select	Setup advanced cpuModule features
PCIPnP	Press Enter to select	Set PnP and PCI options and control system resources
Boot	Press Enter to select	Set the system boot sequence
Security	Press Enter to select	Setup the supervisor and user access passwords or
		enable boot sector virus protection
Power	Press Enter to select	Control power management settings, including power
		supply type, and system wake functions
Thermal	Press Enter to select	Monitor the cpuModule temperature, or activate
		thermal or fan modes.
Exit	Press Enter to select	Save or discard changes and exit the BIOS, or load the
		default BIOS settings

Note Future BIOS versions may have slightly different setup menus and options.

Power On Self Test (POST) Codes

Each POST Code represents a series of events that take place in a system during the POST. If the POST fails during a particular POST Code, the system will not boot as expected.

The BIOS uses I/O port 80h to store the active POST Code. A POST Code board is a tool that is used to display the POST Codes on I/O port 80h. This is usually accomplished with two 7-segment LEDs. Such a board is useful for debugging a system that is unable to boot.

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