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System BIOS Intel® Server Board SE7520JR2
Revision 1.0
C78844-002
80
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.
4.1 BIOS 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.Ma
j
or.Minor.BuildID.BuildDateTime.Mod
two digits:
Dxx = Development
Xxx = Power On
Axx = Alpha BIOS
Bxx = Beta BIOS
RCxx= Release Candidate
P = Production
xx = 2 di
g
it number N/A for Production
Four digits:
Increment
on each build
Three characters:
10A = Some OEM, etc.
N character ID:
AN430TX, etc.
86A = Intel DPG
86B = Intel EPG
One digit:
non-zero if any Separately
Updateable
Module has been updated
two digits:
Build Date and time in
MMDDYYYYHHMM format
Figure 17. BIOS Identification String