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BIOS
3
3-2
configured, the compressed portions of the BIOS are decompressed into
RAM to allow the remainder of the BIOS tasks to be executed very
quickly. The BIOS can now scan for and initialize other interfaces such as
I/O devices and items on the PCI or ISA busses.
If a video adapter is in the system it is located and initialized. The video
adapter will sign-on and its manufacturer, chip type, and creation date will
appear on the screen. The BIOS will then display its sign-on information
giving copyright information, the board name, and the version of the BIOS
present in the system. At this point the following message appears at the
bottom of the screen giving the hotkey that will invoke the setup engine.
F2 or s Enter Setup
<SPACE> Skip Memory
<ESC> BOOT Menu
If the F2 or <s> key is pressed, the message below will be displayed and
the BIOS Setup Engine will be entered after the option ROM scan.
Entering SETUP . . .
The BIOS now starts to size and clear all system memory and display its
progress on the screen. The BIOS now signs-on any option ROMs found
on devices in the system. Also, the BIOS will scan for USB devices
connected to the system. The BIOS then checks to see if the F2 or <s> key
was pressed during POST. If it was, the BIOS Setup Engine will be
executed.
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