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Mainboard User’s Manual
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 System
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.”
Memory Hole At 15M-16M:
If Set to “Enabled”, when the system
memory size is equal to or greater than 16M bytes, the physical memory
address from 15M to 16M will be passed to PCI or ISA and there will be
a 1 MB hole in your system memory. This option is designed for some
OS with special add-in cards which need 15-16 MB memory space.
The default setting is “Disabled.”
CPU Latency Timer:
This item sets a timing parameter for CPU access.
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 “Enabled.”
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 system
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
frequency. When you use an external graphics card, you can adjust this
to enable the best performance for your system.
