Award BIOS Setup Program
27
is enabled. If Auto Configuration is enabled, you must set the DRAM timing
function to 60ns or 70ns, depeding on the type of DRAM you install.
B. System BIOS/Video BIOS Cacheable
Selecting Enabled allows caching system BIOS at F0000h-FFFFFh and caching
the video BIOS at C0000h to C7FFFh, resulting in better system performance.
However if any program writes to this memory area, a system error may occur.
C. 8-bit I/O Recovery Time & 16-bit I/O Recovery Time
Back-to-back CPU or PCI master originated 8-bit and 16-bit cycles have an arbitrary
delay of at least 3.5 system clock cycles. This category is used to add additional
recovery delay between the 8 and 16-bit cycles. This delay takes place because
the PCI bus is much faster than the ISA bus. The options are 1 to 8 and N/A.
D. Memory Hole at 15M-16M
Enabling this feature will reserve the 15MB to 16MB memory address space for
ISA expansion cards. However, enabling this function will result in not allowing
the system to have access to memory above 16MB. Please note that some
expansion cards require this setting to be enabled. The default setting is Disabled.
E. Specific PCI 2.1 Transfer
Enabling this function will turn on the following Specific PCI 2.1 Transfer Protocols:
PCI Passive Release, PCI Delay Transaction, Host_to_PCI Bridge Retry, and
Extended CPU to PIIX4 PHLDA#. The default setting for this function is Disabled.
F. Spectrum Spread
When Enabled this function will cause lower EMI by spreading the system
frequency spectrum. For normal operation, Disable this function.
G. Flash BIOS Protection
The mainboard manufacturer developed BIOS protection technology that protects
the System BIOS kernel data from accidental corruption by unauthorized users
or computer viruses. When enabled the BIOS data cannot be changed when
attempting to update BIOS with the the FLASH utility. When disabled, the BIOS
data can be updated by using the FLASH utility.
To Pass the Windows 95 SCT testing, this item should be disabled.
Please note that when disabling this setting, the system BIOS is vulnerable
by intrusion of computer viruses. It is recommended to disable this setting
only temporarily while updating your system's BIOS.
