TYAN TIGER 133 Manual page 46

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 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.
Due to Tyan's commitment to advanced technologies and first to market, not
all high performance 4X AGP graphics cards are compatible w/ our S1834 at the
time of print, please go to our web site for the latest update.
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 recom-
mended setting is set to CC and it is suggested not to change this value.
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