ASRock A55M-VS CPU Voltage, GFX Engine Clock, Dram Configuration Dram Frequency, CAS# Latency tCL

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CPU Voltage

It allows you to adjust the value of CPU voltage. However, for safety and system stability, it is not recommended to adjust the value of this item.

GFX Engine Clock

Use this to adjust graphics engine clock. The default value is [Auto].

DRAM Configuration

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s) inserted and assigns appropriate frequency automatically.

DRAM Timing Control

Power Down Enable

Use this item to enable or disable DDR power down mode.

Bank Interleaving

Interleaving allows memory accesses to be spread out over banks on the same node, or accross nodes, decreasing access contention.

Channel Interleaving

It allows you to enable Channel Memory Interleaving. Configuration op- tions: [Disabled], [Auto]. The default value is [Auto].

CAS# Latency (tCL)

Use this item to change CAS# Latency (tCL) Auto/Manual setting. The default is [Auto].

RAS# to CAS# Delay (tRCD)

Use this item to change RAS# to CAS# Delay (tRCD) Auto/Manual setting. The default is [Auto].

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Contents A55M-VS Copyright Notice DisclaimerContents Uefi Setup Utility Package Contents IntroductionSpecifications Support CD Bios FeatureUnique Feature HardwarePage Page Page Motherboard Layout I/O Panel LAN Port LED IndicationsInstallation Pre-installation PrecautionsCPU Installation Installation of CPU Fan and HeatsinkInstallation of Memory Modules Dimm Installing a DimmInstalling an expansion card Expansion Slots PCI and PCI Express SlotsWhat does an AMD Dual Graphics system include? AMD Dual Graphics Operation GuideEnjoy the benefit of AMD Dual Graphics AMD Vision Engine Control Center Multi Monitor Feature For Windows XP / XP 64-bit OSFor Windows 7 / 7 64-bit / VistaTM / VistaTM 64-bit OS ASRock Smart Remote Installation Guide Advanced Super IO Configuration CIR Controller EnabledCIR sensors in different angles Jumpers Setup DescriptionOnboard Headers and Connectors Infrared Module Header This header supports an CPU Fan Connectors Pwrbtn Power SwitchATX Power Connector Please connect an ATX power supply to this connectorHot Plug and Hot Swap Functions for Sata / Sataii HDDs What is Hot Plug Function?What is Hot Swap Function? Sata / Sataii HDD Hot Plug Feature and Operation Guide Sata power cableHow to Hot Plug a Sata / Sataii HDD Set up Uefi Driver Installation GuideInstalling Windows XP / XP 64-bit With RAID Functions Use RAID Installation Guide to set RAID configuration Installing Windows XP / XP 64-bit Without RAID Functions Page Uefi Menu Bar Navigation Keys + / Tab Enter Pgup Pgdn Home Navigation KeysMain Screen F10 F12OC Tweaker Screen RAS# to CAS# Delay tRCD Dram Configuration Dram FrequencyDram Timing Control Power Down Enable CPU VoltageRAS to RAS Delay tRRD Command Rate CRWrite Recovery Time tWR Write to Read Delay tWTRInstant Flash Would you like to save current setting user defaults?Advanced Screen Cstate Pmin Mode CPU ConfigurationCore C6 Mode Cool ‘n’ QuietShare Memory North Bridge ConfigurationPrimary Graphics Adapter Dual GraphicsFront Panel South Bridge ConfigurationOnboard HD Audio Onboard LANSata Controller Storage ConfigurationSata Mode Hard Disk S.M.A.R.TSuper IO Configuration Acpi Configuration Acpi Hpet table Legacy USB Support USB ConfigurationUSB 2.0 Controller Hardware Health Event Monitoring Screen CPU Fan 1 SettingChassis Fan 1 Setting Boot Screen Security Screen Save Changes and Exit Load Uefi DefaultsExit Screen Discard Changes and ExitRunning The Support CD Install Operating SystemSupport CD Information Drivers MenuInstalling OS on a HDD Larger Than 2TB in Ahci Mode Installing OS on a HDD Larger Than 2TB in RAID Mode Drv4E CtrlB5 LangengChoose Usable Physical Drive List to select Raid HDD Page Windows VistaTM 64-bit Page Windows 7 64-bit