TYAN TRINITY KT-A Manual page 42

Chapter 3
BIOS Configuration
Memory Hole
This option specifies the location of an area of memory that cannot be addressed on
the ISA bus. The settings are Disabled, 512KB-64KB, or 15MB-16MB.
P2C / C2P Concurrency
By enabling this function the PCI / AGP Master to CPU Cycle can be concurrent if the
Host CPU is performing R/W access to the PCI or slave devices.
Fast Read Write turn-around
If Enabled, it reduces the turn around time for a memory read is followed by a memory
write consecutively.
System BIOS Cacheable
If Enabled, results in better system performance by permitting caching of the system
BIOS ROM at F0000h-FFFFFh. Any program which tries to write to this memory
area, however, may cause a system error.
Video RAM Cacheable
Increases video performance by caching video memory.
AGP Aperture Size
Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is a
portion of the PCI memory address range dedicated for graphics memory address
space. Host cycles that hit the aperture range are forwarded to the AGP without any
translation. See http://www.agpforum.org for AGP information.
AGP-4x Mode
Enables the 4X AGP mode for higher AGP throughput. A 4X AGP graphics card is
required to enable this function.
AGP Driving Control
Due to the compatibility of some AGP cards with the chipset this setting is used to
fine tune these issues. Default is set to Auto.
AGP Driving Value
This is the value set for the AGP Driving control. The manufacturers recommended
setting is set to CC and it is suggested not to change this value.
AGP Fast Write
This function allows the AGP port to function at a increased rate. Enable this
function to allow faster graphics performance.
OnChip USB
The chipset contains an integrated USB controller. Select Enabled if you have USB
peripherals.
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