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BIOS Setup Utility SY-5STM
51
CHIPSET FEATURES SETUP (Continued)
CHIPSET
FEATURES
Setting Description Note
PCILK/4 The ISA bus runs on PCI
Bus Clock divided by 4.
Default
PCILK/3 The ISA bus runs on PCI
Bus Clock divided by 3.
ISA Bus Clock
Frequency
7.159MHz ISA bus clock fixed to
7.159MHz when [Auto
Configuration] field is set to
[Enabled].
Read-
Only
Disabled
System BIOS
Cacheable
Enabled The ROM area F0000H-
FFFFFH is cacheable.
Default
Disabled
Video BIOS
Cacheable
Enabled The video BIOS C0000H-
C7FFFH is cacheable.
Default
Disabled Default
Memory Hole At
15M-16M
Enabled Some interface cards will
map their ROM address to
this area. If this occurs,
select [Enabled] in this field.
1 MB Default
VGA Shared
Memory Size
0.5-4 MB
VGA memory size shared
with system memory.
40 Default
VGA Memory
Clock (MHz)
40-70 MHz
Selects the frequency of the
VGA memory clock.
The following field applies to Cyrix type of CPUs only.
Disabled Default
Linear Mode
SRAM Support
Enabled Linear mode SRAM support
for Cyrix type of CPU.