Computer Hardware User's Manual

Contents
3 Overview of BIOS Features
3.1 Introduction .................................................................................................................. 95
3.2 BIOS Flash Memory Organization ...............................................................................96
3.3 Resource Configuration ............................................................................................... 96
3.3.1 PCI Autoconfiguration.................................................................................... 96
3.3.2 PCI IDE Support ............................................................................................ 96
3.4 System Management BIOS (SMBIOS) ........................................................................ 97
3.5 Legacy USB Support.................................................................................................... 97
3.6 BIOS Updates .............................................................................................................. 98
3.6.1 Language Support ......................................................................................... 98
3.6.2 Custom Splash Screen.................................................................................. 98
3.7 Boot Options ................................................................................................................ 99
3.7.1 CD-ROM Boot ...............................................................................................99
3.7.2 Network Boot ................................................................................................. 99
3.7.3 Booting Without Attached Devices ................................................................ 99
3.7.4 Changing the Default Boot Device During POST .......................................... 99
3.8 Fast Booting Systems with Intel
®
Rapid BIOS Boot................................................... 100
3.8.1 Peripheral Selection and Configuration ....................................................... 100
3.8.2 Intel Rapid BIOS Boot ................................................................................. 100
3.9 BIOS Security Features ............................................................................................. 101
4 Error Messages and Beep Codes
4.1 BIOS Error Messages ................................................................................................ 103
4.2 Port 80h POST Codes ............................................................................................... 105
4.3 Bus Initialization Checkpoints .................................................................................... 109
4.4 Speaker ..................................................................................................................... 110
4.5 BIOS Beep Codes...................................................................................................... 110
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