ASROCK P4VM890 - V1.1 User Manual page 28

REF to ACT / REF to REF (Trfc)
Use this option to select REF to ACT / REF to REF (Trfc). Configuration
options: [Auto], [8T] to [71T]. The default value is set to [Auto] to set the
timing by dram SPD.
ACT(0) to ACT (1) (Trrd)
Use this option to select ACT(0) to ACT (1) (Trrd). Configuration options:
[Auto], [2T], [3T], [4T], and [5T]. The default value is set to [Auto] to set the
timing by dram SPD.
Read to Precharge (Trtp)
Use this option to select Read to Precharge (Trtp). Configuration options:
[Auto], [2T], [3T]. The default value is set to [Auto] to set the timing by dram
SPD.
Write to Read CMD (Twtr)
Use this option to select Write to Read CMD (Twtr). Configuration options:
[Auto], [1T], [2T]. The default value is set to [Auto] to set the timing by dram
SPD.
Write Recovery Time (Twr)
Use this option to select Write Recovery Time (Twr). Configuration options:
[Auto], [2T], [3T], [4T], and [5T]. The default value is set to [Auto] to set the
timing by dram SPD.
DRAM Command Rate
Use this to select among [2T Command] and [1T Command] for DRAM
Command Rate. The default value is [2T Command].
DRAM Voltage
Use this to select DRAM voltage. Configuration options: [Auto], [Normal]
and [High]. The default value is [Auto].
VDDQ Voltage
Use this to select VDDQ voltage. Configuration options: [Auto], [Normal]
and [High]. The default value is [Auto].
Primary Graphics Adapter
This item will switch the PCI Bus scanning order while searching for video
card. It allows you to select the type of Primary VGA in case of multiple
video controllers. The default value of this feature is [PCI]. Configuration
options: [Onboard], [PCI] and [PCI Express].
Share Memory
This allows you to set share memory feature. The default value is [Auto].
Configuration options: [Auto], [32MB] and [64MB].
V-Link Speed
This allows you to set the North Bridge and South Bridge V-Link Speed of
VIA chipset. configuration options: [Normal], [Fast]. The default value is
[Normal].
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