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"The performance of the mainboard is highly dependent on the memory timing you adjust in your BIOS setup. The settings you are able to change and the different values however differ a whole lot from chipset to chipset and from BIOS to BIOS. Some BIOSes hardly leave it up to you to tune up your system, others give you almost too many settings to choose from and some BIOSes adjust the memory timing very well after you only had to choose the DRAM speed."
"Desktop Boards manufactured by Intel incorporate the system BIOS in a Flash memory component. Flash BIOS allows easy upgrades without the need to replace an EPROM component. The upgrade utility fits on a floppy diskette and provides the capability to save, verify, and update the system BIOS. The upgrade utility also provides the capability to install alternate languages for BIOS messages and the SETUP utility. The upgrade utility can be run from a hard drive or a network drive, but no memory managers can be installed during upgrades."
Phoenix Technologies Ltd., which has merged with Award Software, develops custom BIOS's and other custom software products for manufacturers. These manufacturers then modify the software to fit the particular requirements of their product lines. This FAQ deals with many of the problems you may have to contend with.
"The BIOS is built-in software that determines what a computer can do without accessing programs from a disk. On PCs, the BIOS contains all the code required to control the keyboard, display screen, disk drives, serial communications, and a number of miscellaneous functions. The BIOS is typically placed on a ROM chip that comes with the computer (it is often called a ROM BIOS). This ensures that the BIOS will always be available and will not be damaged by disk failures. It also makes it possible for a computer to boot itself. Because RAM is faster than ROM, though, many computer manufacturers design systems so that the BIOS is copied from ROM to RAM each time the computer is booted. This is known as shadowing. Most modern PCs have a flash BIOS, which means that the BIOS has been recorded on a flash memory chip, which can be updated if necessary."
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