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Oracle® x86 Server Diagnostics, Applications, and Utilities Guide

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Updated: June 2016
 
 

Default BIOS POST Events

At system startup, the BIOS performs a power-on self-test (POST) that checks the hardware on your server to ensure that all components are present and functioning properly. It displays the results of these tests on the system console.

The following table identifies the events that can occur during BIOS POST, and specifies whether these event can prevent the host from powering on.

Event
Cause
Boot continues on host?
User password violation
Attempt to enter password fails three times.
No
Setup password violation
Attempt to enter password fails three times.
No
Correctable ECC
Correctable ECC (error correction code) error detected.
Yes
Uncorrectable ECC
Uncorrectable ECC error detected.
Yes
No system memory
No physical memory detected in the system.
No
No usable system memory
All installed memory has experienced an unrecoverable failure.
No
Boot media failure
No removable boot media is found.
Yes
CMOS set to optimal defaults
Load optimal defaults.
Yes
CMOS time and data error
RTC is invalid.
Yes
IOH errors reported
IOH errors.
Yes
CMOS battery low
CMOS battery is low.
Yes
System restart
System boot initiated.
Yes
Initiated by hard reset
Boot process started by hard reset.
Yes
Memory initialization
Memory sizing is occurring.
System firmware progress.
Does not apply
Motherboard initialization
Primary CPU initialization.
Does not apply
Secondary processor initialization
Secondary CPU initialization.
System firmware progress.
Does not apply
Initiated by warm reset
Boot process started by warm reset.
Does not apply
Embedded controller management
Management controller initialization.
Does not apply
PCI resource initialization
BIOS initializes PCI resources.
Does not apply
Video initialization
BIOS initializes video.
Does not apply
USB resource configuration
BIOS configures USB resources.
Does not apply
Option ROM initialization
BIOS initializes Option ROMs.
System firmware progress.
Does not apply
Not enough option ROM space allocated for device
BIOS cannot copy an option to the memory. This is likely due to a large number of PCIe EMs attached to the system.
Maybe booting over an EM not possible.
User initiated system set up
End user initiated access to BIOS Setup Utility.
System firmware progress.
Does not apply
User initiated boot to OS
System boot initiated.
System firmware progress.
Does not apply
No bootable media
Nothing to boot from.
No
PXE server not found
Boot error - PXE server not found.
No
ACPI power state
Soft-off power on (S0) or off (S5).
Does not apply
Not enough IO address space allocated for device
Cannot allocate resources to an on-board device (PCIe EM, REM, FEM), and slot is disabled.
Yes