User`s manual

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Award BIOS Setup Utility
DRAM Clock
Host CLK Sets the memory clock speed equal to that of
the CPU clock speed.
HCLK-33M The memory clock speed is equal to CPU clock
speed minus 33MHz. For example, if the Host Clock
is 133MHz, 133MHz - 33MHz = 100MHz.
Meaning, the memory clock speed will run at
100MHz.
Memory Hole
This field is used to select the memory area that must not be
addressed to the ISA bus.
P2C/C2P Concurrency
When enabled, the PCI/AGP master to CPU cycle will be concurrent
whenever the Host CPU is performing R/W access to the PCI or
slave devices.
Fast R-W Turn Around
When enabled, the turn around time of a memory read followed by
a memory write is reduced.
AGP Aperture Size
This field is relevant to the memory-mapped graphics data of the
AGP card installed in your system. Leave this in its default setting, which
is 64M.
AGP-4X Mode
This field is used to enable the AGP 4x interface which transfers video
data at 1066MB/sec. bandwidth thus delivering faster and better
graphics to your PC. Enable this field only if your graphics card supports
the AGP 4x mode.
AGP Fast Write
This function is supported only if this field is set to Enabled.