Acorp VIA KT400A, User Manual

Page: 28 / 54

Chapter 3
24
is enabled, you must set the DRAM timing function to 60ns or 70ns, depending on the
type of DRAM you install.
System BIOS Cacheable
Enabling this function allows caching of the system BIOS ROM at F0000h-FFFFFh,
resulting in better system performance. However, if any program writes to this memory
area, a system error may result. It is advised to leave this setting. Caching the system
BIOS results in better performance than shadowing the system BIOS.
Video RAM Cacheable
Enabling this function will allows caching of the video RAM, resulting in better system
performance. However, if any programs write to this memory area, a system error may
occur.
Flash BIOS Protection
The motherboard manufacturer developed BIOS protection technology that protects the
System BIOS from accidental corruption by unauthorized users or computer viruses.
When enabled, the BIOS data cannot be changed when attempting to update BIOS with
the FLASH utility. When disabled, the BIOS data can be updated by using the FLASH
utility.
Note:
If you are using DDR 400 and the brand of the module is Winbond , please adjust your
BIOS setting according to the following instructions to avoid compatibility problem.
1. Press [ Delete ] to enter BIOS setup program when you turn on or reboot your system.
2. Select [ Advanced Chipset Features ].