ASROCK 775Dual-880Pro User Manual page 32

Flexibility Option
The default value of this option is [Disabled]. It will allow better tolerance for
memory compatibility when it is set to [Enabled].
DRAM CAS# Latency
Use this item to adjust the means of memory accessing. Configuration
options: [Auto], [2.5], [2], and [3] for DDR; [Auto], [3], [4], [5] for DDRII.
DRAM Command Rate
Use this to select among [2T Command] and [1T Command] for DRAM
Command Rate. The default value is [2T Command].
DRAM Bus Selection
The default value is [Auto], which will automatically select the proper ac-
cess mode for the system. You may select between [Single Channel] and
[Dual Channel] if you have properly set the dual channel memory
configuration.
DRAM Voltage
Use this to select among [Normal] and [High] for DRAM Voltage. The default
value is [Normal].
AGP Voltage
Use this to select among [Normal] and [High] for AGP Voltage. The default
value is [High].
Primary Graphics Adapter
This allows you to select [PCI], [AGP], or [PCI-Express] as the primary
graphics adapter. The default vaule is [PCI].
AGP Aperture Size
It refers to a section of the PCI memory address range used for graphics
memory. It is recommended to leave this field at the default value unless the
installed AGP card's specifications requires other sizes.
AGP Mode
The default value of this feature is set to [Auto]. If you install an 8X-AGP
card on this motherboard, you may select [Auto], [8X] or [4X] as the AGP
mode. If the installed AGP card is a 4X-AGP card, then you may set the AGP
mode as [Auto], [4X], [2X], or [1X].
AGP Fast Write
This allows you to enable or disable the feature of AGP fast write protocol
support.
PCI Delay Transaction
Enable PCI Delay Transaction feature will free the PCI Bus when the CPU is
accessing 8-bit ISA cards. Disable this feature when using ISA cards that
are not PCI 2.1 compliant.
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