Default Host BIOS Power-On Self-Test (POST)

Startup diagnostics on the host use BIOS power-on self-test (POST), which executes whenever the blade host is powered on or reset. The table below lists events that can occur during BIOS POST, and specifies whether the event prevents the host from booting.

Note

For additional information about BIOS and BIOS POST, see the topics listed under BIOS Reference.

Event

Cause

Boot Continues?

User password violation

Attempt to enter password fails three times

No

Setup password violation

Attempt to enter password fails three times

No

Processor therm trip

Depending on server module type:

  • X8400, X8420, X8440 Server Modules: Therm trip detected in AMD Opteron configuration space

  • X8450 Server Module: Therm trip detected in Intel Opteron configuration space

Yes

Correctable ECC

Correctable ECC error detected

N/A

Uncorrectable ECC

Uncorrectable ECC error detected

N/A

No system memory

No physical memory detected in the system

No

No usable system memory

All installed memory has experienced an unrecoverable failure

No

Hard-disk controller failure

No disk controller found

Yes

Keyboard failure

Keyboard cannot be initialized

Yes

Boot media failure

No removable boot media is found

Yes

No video device

No video controller is found

No

Firmware (BIOS) ROM corruption

BIOS checksum fails and the boot block is not corrupted

No

Memory initialization

Memory sizing is occurring

N/A

Secondary processor(s) initialization for X8400, X8420, X8440 Server Modules

POST code = 8609h

Note

Post code 8609h does not apply to the X8450 Server Module.

N/A

User-initiated system setup

Depending on server module type:

  • X8400, X8420, X8440 Server Modules: POST code = 8687h

  • X8450 Server Module: End user initiated access to BIOS Setup

N/A

Option ROM initialization

When BIOS initializes device Option ROMs

N/A

Video initialization

When BIOS initializes video device

N/A

Keyboard controller initialization

When BIOS initializes keyboard

N/A

Embedded controller/management controller initialization

POST code = 8601h, BMC initialization

N/A

Starting O/S boot process

POST code = 086ACh

N/A

Primary processor initialization

POST code = 8608h

N/A

Front panel NMI/diagnostic interrupt

NMI button pressed

N/A

Initiated by hard reset

Boot process started by hard reset

N/A

Initiated by warm reset

Boot process started by warm reset

N/A

User-requested PXE boot

F12 has been pressed

N/A

No bootable media

Nothing to boot from

No

PXE server not found

F12 key was pressed but BIOS fails to boot from PXE server

No

Option ROM space exhausted

BIOS cannot copy an option to the memory between C0000h - EFFFFh

Yes

SAS hard drive OK-to-Remove indicator

OK to remove the hard drive

N/A

SAS hard drive insertion indicator on X8400, X8420, and X8440 Server Modules

Notify SP to turn off the Ready-to-Remove indicator

Note

This SAS disk drive event does not apply to the X8450 Server Module.

N/A

X8400, X8420, X8440 Server Module Memory Configuration Events

Node-# memory configuration mismatch

DIMMs within the specified node are not all registered DIMMs

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# memory configuration mismatch

DIMMs within the specified node are not properly paired

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# memory configuration mismatch

DIMMs within the specified node failed the SPD checksum

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# memory configuration mismatch

DIMMs within the specified node do not have the same module type (buffer)

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# memory configuration mismatch

DDR-1 and DDR-2 types of DIMMs are mixed within the specified node

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# memory configuration mismatch

DIMMs within the specified node to not have the same Cas Latency

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# memory configuration mismatch

DIMM Trc and Trfc (SPD bytes 41 and 42) are mismatched within the specified node

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# paired DIMM mismatch

SPD checksum of both DIMMs forming a pair did not match

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes

Node-# DIMMs manufacturer mismatch

DIMMs from different manufacturers are in the specified node

Note

This memory configuration event does not apply to the X8450 Server Module.

Yes