3 Overview of BIOS Features
The motherboard uses an Intel/Phoenix BIOS, which is stored in flash memory and can be
upgraded using a disk-based program. In addition to the BIOS, the flash memory contains the
Setup program, POST, APM, the PCI auto-configuration utility, and Windows 95-ready Plug and
Play. See Section 6.2 for the supported versions of the APM, PCI, Phoenix BIOS, and Plug and
Play specifications.
This motherboard supports system BIOS shadowing, allowing the BIOS to execute from 64-bit
onboard write-protected DRAM.
The BIOS displays a message during POST identifying the BIOS type and revision code. The
initial production BIOS is identified as 4M4PB0X1.86A.
3.1 BIOS Upgrades
The BIOS can be upgraded from a diskette using the Intel Flash Memory Update utility that is
available from Intel. This utility does BIOS upgrades as follows:
xUpdates the flash BIOS from a file on a disk
xUpdates the language section of the BIOS
xMakes sure that the upgrade BIOS matches the target system to prevent accidentally installing
a BIOS for a different type of system
BIOS upgrades and the update utility are available from Intel through the Intel World Wide Web
site. See Section 6.1 for information about this site.
/NOTE
Please review the instructions distributed with the upgrade utility before attempting a BIOS
upgrade.
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