Technical information

50
Checkpoint Description
2A
Initialize different buses and perform the following functions: Reset, Detect, and
Disable (function 0); Static Device Initialization (function 1); Boot Output Device
Initialization (function 2). Function 0 disables all device nodes, PCI devices, and PnP
ISA cards. It also assigns PCI bus numbers. Function 1 initializes all static devices that
include manual configured onboard peripherals, memory and I/O decode windows in
PCI-PCI bridges, and noncompliant PCI devices. Static resources are also reserved.
Function 2 searches for and initializes any PnP, PCI, or AGP video devices.
38
Initialize different buses and perform the following functions: Boot Input Devic
e
Initialization (function 3); IPL Device Initialization (function 4); General Devic
e
Initialization (function 5). Function 3 searches for and configures PCI input devices an
d
detects if system has standard keyboard controller. Function 4 searches for an
d
configures all PnP and PCI boot devices. Function 5 configures all onboard peripheral
s
that are set to an automatic configuration and configures all remaining PnP and PC
I
devices.
AC First ASL check point. Indicates the system is running in ACPI mode.
AA System is running in APIC mode.
01, 02, 03, 04, 05 Entering sleep state S1, S2, S3, S4, or S5.
10, 20, 30, 40, 50 Waking from sleep state S1, S2, S3, S4, or S5.