System BIOS

Intel® Server Board SE7520JR2

4.System BIOS

The BIOS is implemented as firmware that resides in the Flash ROM. It provides hardware- specific initialization algorithms and standard PC-compatible basic input/output (I/O) services, and standard Intel® Server Board features. The Flash ROM also contains firmware for certain embedded devices. These images are supplied by the device manufacturers and are not specified in this document.

The system BIOS includes the following components:

IA-32 Core – The IA-32 core contains standard services and components such as the PCI Resource manager, ACPI support, POST, and runtime functionality.

Manageability Extensions – Intel servers build server management into the BIOS through the Intelligent Platform Management Interface (IPMI) and baseboard management hardware.

Extensible Firmware Interface – “EFI” provides an abstraction layer between the operating system and system hardware.

Processor Microcode – BIOS includes microcode for the latest processors.

Option ROMs – BIOS includes option ROMs to enable on-board devices during boot.

4.1BIOS Identification String

The BIOS Identification string is used to uniquely identify the revision of the BIOS being used on the system. The string is formatted as illustrated in the following figure.

BoardId.OEMID.BuildType.Major.Minor.BuildID.BuildDateTime.Mod

 

 

 

 

Dxx = Development

 

 

Xxx = Power On

 

 

Axx = Alpha BIOS

 

 

two digits:

Bxx = Beta BIOS

 

 

RCxx= Release Candidate

 

 

P = Production

 

 

xx = 2 digit number N/A for Production

 

 

 

two digits:

 

 

Three characters:

N character ID:

 

86A

= Intel DPG

AN430TX, etc.

 

86B = Intel EPG

 

 

10A

= Some OEM, etc.

Build Date and time in

MMDDYYYYHHMM format

One digit:

non-zero if any Separately Updateable

Module has been updated

Four digits:

Increment

on each build

Figure 17. BIOS Identification String

80

Revision 1.0

 

C78844-002