Abit VT7 User Manual page 49

BIOS Setup
DRAM BUS Selection:
This item determines the channel of DRAM modules from [Single Channel] or [Dual Channel]. The
[Single Channel] option allows a standard 64-bit access rate. The [Dual Channel] option will have a
double 128-bit access rate. Leave this item to its default [Auto] setting to have it selected automatically.
NOTE: It is highly recommended to use the DRAMs of the identical brand name and specification for
slots [DIMM1]+[DIMM3] or slots [DIMM2]+[DIMM4] in order to achieve a better performance.
DRAM Command Rate:
This item determines the wait state of commands. Set it to [2T Command] for system compatibility or [1T
Command] for system performance.
Back to Advanced Chipset Features Setup Menu:
AGP & P2P Bridge Control:
Click <Enter> key to enter its submenu:
AGP Aperture Size:
This item specifies the amount of system memory that can be allocated by the AGP device. The aperture
is a portion of the PCI memory address range dedicated for graphics memory address space.
AGP 3.0 Mode:
This item selects the data transfer rate of AGP device. A higher rate delivers faster and better graphics to
your system. Make sure your graphics card supports the mode you select.
NOTE: This item will be changed into "AGP 2.0 Mode" when not installing graphics card of AGP 3.0
specifications.
AGP Driving Control:
Set this item to [Manual] option only if there are compatible problems with some graphics cards. When
set to [Manual], you must select a value in the following [AGP Driving Value] item.
AGP Driving Value:
This item determines the value for AGP Driving Control.
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User's Manual