BIOS BIOS UPDATE UTILITY
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3.2 BIOS Update Utility
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 BIOS. The flash ROM also
contains initialization code in compressed form for onboard
peripherals, like SCSI, NIC and video controllers. The complete
ROM is visible, starting at physical address 4 GB minus the size
of the flash ROM device.
A 16-KB parameter block in the flash ROM is dedicated to stor-
ing configuration data that controls the system configuration
(ESCD). Application software must use standard APIs to
access these areas; application software cannot access the
data directly.
BIOS Update Utility
Server platforms support the DOS-based, Windows-based, and
Linux-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:
The system BIOS, including the recovery code, setup util-
ity and strings.
Onboard video BIOS, RAID BIOS, and other option
ROMS for the devices embedded on the server board.
Memory reference code.
Microcode updates.
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