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Acer 365 User Manual

Page 78

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BIOS POST Checkpoints

C-3

Table C-1

POST Checkpoint List

Checkpoint

Description

6Ch

FDD testing & parameter table setup

Note: The FDD LED should flash once and its head should be positioned

88h

HDD testing & parameter table setup

89h

Get CPU MUX

Note: This routine is to identify the user-set CPU frequency, not CPU-required frequency

90h

Display POST status if necessary

93h

Rehook int1c for quiet boot

94h

Initialize I/O ROM

A4h

Initialize security feature

A8h

Setup SMI parameters

A0h

Initialize Timer counter for DOS use

ACh

Enable NMI

Enable parity checking

Set video mode

B0h

Power-on password checking

Display configuration table

Clear memory buffer used for POST

Select boot device