Intel 4127, 4112 user manual Installing the Memory, Dual Channel Memory Configuration

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1-4 Installing the Memory

Read the following guidelines before you begin to install the memory:

Make sure that the motherboard supports the memory. It is recommended that memory of

the same capacity, brand, speed, and chips be used.

(Go to GIGABYTE's website for the latest memory support list.)

Always turn off the computer and unplug the power cord from the power outlet before installing the memory to prevent hardware damage.

Memory modules have a foolproof design. A memory module can be installed in only one direction. If you are unable to insert the memory, switch the direction.

1-4-1 Dual Channel Memory Configuration

This motherboard provides two DDR2 memory sockets and supports Dual Channel Technology. After the memory is installed, the BIOS will automatically detect the specifications and capacity of the memory. Enabling Dual Channel memory mode will double the original memory bandwidth.

The two DDR2 memory sockets are divided into two channels and each channel has one memory socket as following:

Channel 0: DDRII1 Channel 1: DDRII2

DDRII1

DDRII2

Due to chipset limitation, read the following guidelines before installing the memory in Dual Channel mode.

1.Dual Channel mode cannot be enabled if only one DDR2 memory module is installed.

2.When enabling Dual Channel mode with two memory modules, it is recommended that memory of the same capacity, brand, speed, and chips be used.

GA-945GCM-S2L/S2C Motherboard

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Contents GA-945GCM-S2L/ GA-945GCM-S2C Motherboard Copyright DisclaimerDocumentation Classifications Identifying Your Motherboard RevisionTable of Contents Regulatory Statements Box Contents GA-945GCM-S2L/GA-945GCM-S2C Motherboard Layout Block Diagram Hardware Installation Installation PrecautionsProduct Specifications CPU4 Mbit flash Page Installing the CPU and CPU Cooler Installing the CPUCPU Socket Lever Installing the CPU Cooler Installing the Memory Dual Channel Memory ConfigurationInstalling a Memory Installing an Expansion Card Back Panel Connectors Line Out Jack Green Line In Jack BlueMic In Jack Pink Internal Connectors PwrledGND FDD Floppy Disk Drive Connector CPUFAN/SYSFAN Fan HeadersIDE IDE Connector SATAII0/1/2/3 Sata 3Gb/s Connectors, Controlled by ICH7Pwrled System Power LED Header BatbatteryFpanel Front Panel Header Cdin CD In Connector Faudio Front Panel Audio HeaderSpdifo S/PDIF Out Header FUSB1/FUSB2 USB HeadersClrcmos Clearing Cmos Jumper CI Chassis Intrusion HeaderGA-945GCM-S2L/S2C Motherboard Bios Setup Following screen may appear when the computer boots Startup ScreenBios Setup Program Function Keys Sample Bios Version GA-945GCM-S2L E10Main Menu „ Standard Cmos Features „ Advanced Bios Features„ Power Management Setup „ PnP/PCI ConfigurationsDate TimeIDE Channel 0 Master/Slave IDE Channel 2, 3 Master/SlaveFloppy 3 Mode Support Drive aHalt on MemoryHard Disk Boot Priority First/Second/Third Boot DevicePassword Check HDD S.M.A.R.T. CapabilityLimit Cpuid Max. to 3 Note No-Execute Memory Protect NoteCPU Enhanced Halt C1ENote CPU Thermal Monitor 2 TM2 NoteOn-Chip Sata Mode On-Chip Primary PCI IDEPata IDE Set to Sata Port 0/2 Set toSata Port 1/3 Set to USB ControllerUSB 2.0 Controller USB Keyboard SupportSmart LAN LAN Cable Diagnostic Function Smart LANOnboard LAN Boot ROM Parallel Port ModeECP Mode Use DMA Onboard Serial PortSoft-Off by PWR-BTTN Power On by RingPME Event Wake Up Resume by Alarm Hpet Mode NotePower On By Mouse Power On By KeyboardPCI1 IRQ Assignment PnP/PCI ConfigurationsPCI2 IRQ Assignment Reset Case Open Status Current CPU TemperatureCPU Warning Temperature Case OpenedCPU Smart FAN Control FSB1333 Core 2 CPU CPU Clock Ratio NoteCPU Host Clock Control CPU Host Frequency Mhz PCI Express Frequency MhzSystem Memory Multiplier Memory Frequency MhzLoad Fail-Safe Defaults Load Optimized DefaultsSet Supervisor/User Password Save & Exit Setup Exit Without SavingDrivers Installation Installing Chipset DriversSoftware Applications Driver CD InformationHardware Information Contact UsGA-945GCM-S2L/S2C Motherboard Before You Begin Xpress Recovery2System Requirements Installation and Configuration Installing Windows XP and Partitioning the Hard DrivePage Accessing Xpress Recovery2 Using the Backup Function in Xpress Recovery2Removing the Backup Using the Restore Function in Xpress Recovery2Exiting Xpress Recovery2 Bios Update Utilities Updating the Bios with the Q-Flash UtilityUpdating the Bios Press Y to load Bios defaults Installing and Using @BIOS Updating the Bios with the @BIOS UtilityOptions and Instructions Update the Bios without Using the Internet Update Function EasyTune EasyTune 5 Interface Button Information TableWindows Vista ReadyBoost Configuring 2/4/5.1-Channel Audio Configuring Audio Input and OutputConfiguring Speakers Speakers or Headphones Activating an AC97 Front Panel Audio Module Configuring Sound EffectMuting the Back Panel Audio For HD Audio Only Installing the S/PDIF Out Cable Installing the S/PDIFOut Cable OptionalPdif out Configuring S/PDIF out Configuring Microphone Recording Appendix Recording the Sound Using the Sound RecorderPlaying the Sound Troubleshooting Frequently Asked QuestionsTroubleshooting Procedure StartEND Regulatory Notices Weee Symbol StatementOur Commitment to Preserving the Environment China Restriction of Hazardous Substances Table GA-945GCM-S2L/S2C Motherboard Contact Us B.T. INC USA MexicoGigabyte Global Service System