BIOS Configuration
Advanced Chipset Features
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SDRAM RAS-to-CAS Delay:
This sets the relative delay between
the Row Address Strobe (RAS) and the Column Address Strobe
(CAS). Options are “2” and “3” (default).
SDRAM RAS Precharge Time:
Defines the length of time that the
Row Address Strobe (RAS) is allowed to pre-charge. Options are “2”
and “3” (default).
System BIOS Cacheable:
When set to “Enabled” (default), the Sys-
tem BIOS will be cached for faster execution.
Video BIOS Cacheable:
When set to “Enabled,” the graphics card’s
local memory will be cached for faster execution. The default setting
is “Disabled.”
CPU Latency Timer:
This item sets a timing parameter for CPU ac-
cess. Since the CPU timing is determined by the system hardware,
leave this item at the default value.
Delayed Transaction:
The chipset has an embedded 32-bit posted
write buffer to support delay transactions cycles. Enable to support
compliance with PCI specification version 2.1. The default is “En-
abled.”
AGP Graphics Aperture Size:
This option determines the effective
size of the AGP Graphic
Aperture
, where memory-mapped graphic
data structures are located.
Display Cache Frequency:
This item sets the frequency for the sys-
tem memory bus. If you have installed 133 MHz memory, you can
change the frequency to 133 MHz.
System Memory Frequency:
This item sets the main memory fre-
quency. When you use an external graphics card, you can adjust this
to enable the best performance for your system.
On-Chip Video Window Size:
This item defines the size of the ap-
erture if you use an AGP graphics adapter. It refers to a section of the
PCI memory address range used for graphics memory. We recom-
mend that you leave this item at the default value.
