Note the screen display and write down the beep code you hear; this information is useful for your service representative. For a listing of beep codes and error messages that POST can generate, see Chapter 7, “Solving Problems,” beginning on page 155.

Using BIOS Setup

This section describes BIOS Setup options. Use Setup to change the system configuration defaults. You can run Setup with or without an OS being present. Setup stores most of the configuration values in battery-backed CMOS; the rest of the values are stored in flash memory. The values take effect when you boot the system. POST uses these values to configure the hardware; if the values and the actual hardware do not agree, POST generates an error message. You must then run Setup to specify the correct configuration.

Run Setup: you can run Setup to modify any standard PC ATfeature such as:

Select diskette drive

Select parallel port

Select serial port

Set time/date (to be stored in RTC)

Configure IDE hard drive

Specify boot device sequence

Enable SCSI BIOS

Run SSU, not Setup: You must run the SSU instead of Setup to do the following:

Enter or change information about a board

Alter system resources (e.g., interrupts, memory addresses, I/O assignments) to user-selected choices instead of choices selected by the BIOS resource manager

Record Your Setup Settings

Worksheets for recording your settings are in Appendix B, “Equipment Log and Configuration Worksheets”, starting on page 197. If the default values ever need to be restored (after a CMOS clear, for example), you must run Setup again. Referring to the worksheets could make your task easier.

If You Cannot Access Setup

If the diskette drive is misconfigured so that you cannot access it to run a utility from a diskette, you might need to clear CMOS memory. You must open the system, change a jumper setting, use Setup to check and set diskette drive options, and change the jumper back. For a step-by-step procedure, see "CMOS Clear Switch" on page 183.

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Intel SRPL8 manual Using Bios Setup, Record Your Setup Settings, If You Cannot Access Setup