ASRock A75M manual Installation of Memory Modules Dimm, Installing a Dimm

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2.3 Installation of Memory Modules (DIMM)

This motherboard provides two 240-pin DDR3 (Double Data Rate 3) DIMM slots, and supports Dual Channel Memory Technology. For dual channel configuration, you always need to install two identical (the same brand, speed, size and chip- type) memory modules in the DDR3 DIMM slots to activate Dual Channel Memory Technology. Otherwise, it will operate at single channel mode.

1.It is not allowed to install a DDR or DDR2 memory module into DDR3 slot;otherwise, this motherboard and DIMM may be damaged.

2.If you install only one memory module or two non-identical memory modules, it is unable to activate the Dual Channel Memory Technology.

Installing a DIMM

Please make sure to disconnect power supply before adding or removing DIMMs or the system components.

Step 1. Unlock a DIMM slot by pressing the retaining clips outward.

Step 2. Align a DIMM on the slot such that the notch on the DIMM matches the break on the slot.

The DIMM only fits in one correct orientation. It will cause permanent damage to the motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation.

Step 3. Firmly insert the DIMM into the slot until the retaining clips at both ends fully snap back in place and the DIMM is properly seated.

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Contents A75M Disclaimer Copyright NoticeContents Uefi Setup Utility Introduction Package ContentsSpecifications Bios Feature ConnectorRear Panel I/O USBSupport CD Unique FeatureHardware MonitorPage Page Page ATXPWR1 Motherboard LayoutTable for Audio Output Connection I/O PanelLAN Port LED Indications Page Pre-installation Precautions InstallationInstallation of CPU Fan and Heatsink CPU InstallationInstalling a Dimm Installation of Memory Modules DimmPcie Slots Installing an expansion cardExpansion Slots PCI and PCI Express Slots What does an AMD Dual Graphics system include? AMD Dual Graphics Operation GuideEnjoy the benefit of AMD Dual Graphics AMD Vision Engine Control Center Dual Monitor Feature Dual Monitor and Surround Display FeaturesFor Windows XP / XP 64-bit OS Surround Display FeatureHdcp Function What is HDCP?For Windows 7 / 7 64-bit / VistaTM / VistaTM 64-bit OS CIR sensors in different angles ASRock Smart Remote Installation GuideDescription Jumpers SetupSerial ATA3 Connectors Onboard Headers and ConnectorsInfrared Module Header Reset Reset Switch CPU Fan ConnectorsATX 12V Power Connector ATX Power ConnectorWhat is Hot Plug Function? Serial ATA3 SATA3 Hard Disks InstallationWhat is Hot Swap Function? Hot Plug and Hot Swap Functions for SATA3 HDDsPoints of attention, before you process the Hot Plug SATA3 HDD Hot Plug Feature and Operation GuideHow to Hot Plug a SATA3 HDD Set up Uefi Driver Installation GuideInstalling Windows XP / XP 64-bit With RAID Functions \ RAID Installation Guide Make a SATA3 Driver Diskette Use RAID Installation Guide to set RAID configurationInstalling Windows XP / XP 64-bit Without RAID Functions Page Uefi Menu Bar Main Screen Navigation KeysTo jump to the Exit Screen or exit the current screen System Time HourMinuteSecondOC Tweaker Screen RAS# to CAS# Delay tRCD Dram Timing Control Power Down EnableCommand Rate CR Write Recovery Time tWRWrite to Read Delay tWTR RAS to RAS Delay tRRDWould you like to save current setting user defaults? Refresh Cyle Time tRFCInstant Flash Advanced ScreenCore C6 Mode CPU ConfigurationPackage C6 Mode Cool ‘n’ QuietPrimary Graphics Adapter North Bridge ConfigurationShare Memory Onboard Hdmi HD AudioSouth Bridge Configuration Sata Mode Storage ConfigurationSata IDE Combined Mode Sata ControllerSuper IO Configuration Acpi Configuration Acpi Hpet table USB 2.0 Controller USB ConfigurationUSB 3.0 Controller Legacy USB SupportHardware Health Event Monitoring Screen CPU Fan 1 SettingChassis Fan 1 Setting Boot Screen Security Screen Exit Screen Support CD Information Install Operating SystemRunning The Support CD Drivers MenuInstalling OS on a HDD Larger Than 2TB