CHAPTER 6: Troubleshooting | www.gateway.com |
DIM code checkpoints
The Device Initialization Manager (DIM) gets control at various times during BIOS POST to initialize different system buses. The following table describes the main checkpoints where the DIM module is accessed.
Checkpoint | Description | |
|
| |
2A | Initialize different buses and perform the following | |
| functions: | |
| ■ | Reset, Detect, and Disable (function 0) — Disables all |
|
| device nodes, PCI devices, and PnP ISA cards. It also |
|
| assigns PCI bus numbers. |
| ■ | Static Device Initialization (function 1) — Initializes |
|
| all static devices that include manual configured |
|
| onboard peripherals, memory and I/O decode |
|
| windows in |
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| devices. Static resources are also reserved. |
| ■ | Boot Output Device Initialization (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) — |
|
| Searches for and configures PCI input devices and |
|
| detects if system has standard keyboard controller. |
| ■ | IPL Device Initialization (function 4) — Searches for |
|
| and configures all PnP and PCI boot devices. |
| ■ | General Device Initialization (function 5) — |
|
| Configures all onboard peripherals that are set to an |
|
| automatic configuration and configures all |
|
| remaining PnP and PCI devices. |
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|
|
ACPI runtime checkpoints
ACPI checkpoints are displayed when an
Checkpoint | Description |
|
|
AC | First ASL checkpoint. Indicates that 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.
BIOS
The settings in the BIOS Setup utility are not retained
■Replace the CMOS battery. For instructions, see “Replacing the CMOS battery” on page 58.
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