ADWPCIXRSKU20 Intel, ADWPCIXRSKU20 Datasheet - Page 88

• Manufacturer Part Number: ADWPCIXRSKU20
• Manufacturer: Intel

Specifications of ADWPCIXRSKU20

• Lead Free Status / Rohs Status: Supplier Unconfirmed

System BIOS
4.4
The flash ROM contains system initialization routines, the BIOS Setup Utility, and runtime
support routines. The exact layout is subject to change, as determined by Intel. A 64-KB user
block is available for user ROM code or custom logos. The flash ROM also contains initialization
code in compressed form for onboard peripherals, like SCSI, NIC and video controllers. It also
contains support for the rolling single-boot BIOS update feature.
4.4.1
The online update nomenclature refers to the ability to update the BIOS while the server is
online and in operation, as opposed to taking the server out of operation while performing a
BIOS update. The rolling BIOS nomenclature refers to the capability of having two copies of
BIOS: the current BIOS in use, and a second BIOS to which an updated BIOS version can be
written. When ready, the system can roll forward to the new BIOS. In case of a failure with the
new BIOS version, the system can roll back to the previous version.
The BIOS relies on specialized hardware and additional flash space to accomplish online
update/rolling of the BIOS. The flash is divided into two partitions, primary and secondary. The
active partition from which the system boots is the primary partition. The AMI FLASH update
suite and Intel online updates preserve the existing BIOS image on the primary partition.
BIOS updates are diverted to the secondary partition. After the update is complete, a notification
flag is set. During the next boot, the system first attempts to boot from the primary BIOS
partition. On determining that a BIOS update occurred, the system then attempts to boot from
the new BIOS. If a failure happens while booting to the new BIOS, the specialized hardware on
the system switches to the primary BIOS partition, thus affecting a “roll back”.
4.4.2
Server platforms support a DOS-based firmware update utility. This utility loads a fresh copy of
the BIOS into the flash ROM. The BIOS update may affect the following items:
4.4.3
An afuXXX AMI Firmware Update utility (such as afudos, AFUWIN, afulnx, or AFUEFI) is
required for a BIOS update.
4.4.4
The baseboard includes an area in flash for implementation-specific OEM add-ons. This OEM
binary area can be updated as part of the system BIOS update or it can be updated
independent of the system BIOS.
88
Flash Architecture and Flash Update Utility
The system BIOS, including the recovery code, setup utility and strings.
Onboard video BIOS, and other option ROMS for the devices embedded on the server
board.
OEM binary area.
Microcode updates.
Rolling BIOS and On-line Updates
Flash Update Utility
Flash BIOS
User Binary Area
Intel order number C91056-002
Intel® Server Board SE7320VP2
Revision 2.1