Dim Code Checkpoints; Acpi Runtime Checkpoints; Table 68. Dim Code Checkpoints; Table 69. Acpi Runtime Checkpoints - Intel SE7525GP2 Technical Manual

Intel® Server Boards SE7320SP2 and SE7525GP2
FF A A
6.3.6

DIM Code Checkpoints

The Device Initialization Manager (DIM) module gets control at various times during BIOS
POST to initialize different buses. The following table describes the main checkpoints where the
DIM module is accessed:
Checkpoint
2A Initialize different buses and perform the following functions:
Reset, Detect, and Disable (function 0). Function 0 disables all device nodes, PCI devices, and
PnP ISA cards. It also assigns PCI bus numbers.
Static Device Initialization (function 1). 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.
Boot Output Device Initialization (function 2). Function 2 searches for and initializes any PnP, PCI,
or AGP video devices.
38 Initialize different buses and perform the following functions:
Boot Input Device Initialization (function 3). Function 3 searches for and configures PCI input
devices and detects if system has standard keyboard controller.
IPL Device Initialization (function 4). Function 4 searches for and configures all PnP and PCI boot
devices.
General Device Initialization (function 5). Function 5 configures all onboard peripherals that are set
to an automatic configuration and configures all remaining PnP and PCI devices.
6.3.7

ACPI Runtime Checkpoints

ACPI checkpoints are displayed when an ACPI capable operating system either enters or
leaves a sleep state. The following table describes the type of checkpoints that may occur
during ACPI sleep or wake events:
Checkpoint
AC
AA
01, 02, 03, 04, 05
10, 20, 30, 40, 50
Revision 4.0
The flash has been updated successfully. Make flash write disabled.
A A Disable ATAPI hardware. Restore CPUID value back into register.
Give control to F000 ROM at F000:FFF0h.

Table 68. DIM Code Checkpoints

Table 69. ACPI Runtime Checkpoints

First ASL check point. Indicates the system is running in ACPI mode.
System is running in APIC mode.
Entering sleep state S1, S2, S3, S4, or S5.
Waking from sleep state S1, S2, S3, S4, or S5.
Error Reporting and Handling
Description
Description
139