Compal JHL90 Service Manual page 15

Contents
Chapter 2 Software Specification
1. System Components Summary .............................................................. 2-1
2. System Controls ..................................................................................... 2-5
2.1 Buttons ..........................................................................................2-5
2.2 System status indicators................................................................2-5
3. Core BIOS Features ............................................................................... 2-6
3.1 Multi Boot.......................................................................................2-6
3.2 Quiet Boot......................................................................................2-6
3.3 Boot Block .....................................................................................2-6
4. Thermal management............................................................................. 2-7
5. Power Management for ACPI mode ....................................................... 2-7
5.1 Introduction....................................................................................2-7
5.2 System Time-outs ..........................................................................2-7
5.3 System Power Management..........................................................2-7
5.4 Device Power Management...........................................................2-7
5.5 Hibernation ....................................................................................2-8
6. ACPI (Advanced Configuration and Power Interface)............................. 2-9
6.1 Introduction....................................................................................2-9
6.2 ACPI Sleep Status .........................................................................2-9
6.3 Fast Resume .................................................................................2-9
6.4 Power State Transition Diagram ....................................................2-9
6.5 Storage Devices and Batteries ....................................................2-10
6.6 Bootable Device...........................................................................2-10
6.7 Embedded controller....................................................................2-10
7. PC2001..................................................................................................2-10
8. Miscellaneous Features .........................................................................2-11
8.1 Single BIOS ROM........................................................................2-11
8.2 USB Support................................................................................2-11
8.3 Flash utility - one BIOS ROM only ...............................................2-11
8.4 Crisis Recovery ...........................................................................2-11
8.5 VGA Support................................................................................2-11
9. Customer Specific Features...................................................................2-12
9.1 Display of System Type and BIOS Version Number on Boot.......2-12
9.2 CMOS RAM management ...........................................................2-12
9.3 System Management BIOS (SM BIOS) version 2.4 (DMI 2.0).....2-12
9.4 EEPROM .....................................................................................2-13