Gigabyte GA-990FXA-UD3 Ultra [9/40] 3 installing the cpu

Please visit GIGABYTE's website for details on hardware installation.

1-3 Installing the CPU

ReadthefollowingguidelinesbeforeyoubegintoinstalltheCPU:

• Make sure that the motherboard supports the CPU.

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

• Always turn off the computer and unplug the power cord from the power outlet before installing the

CPU to prevent hardware damage.

• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly.

• Apply an even and thin layer of thermal grease on the surface of the CPU.

• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and damage

of the CPU may occur.

• SettheCPUhostfrequencyinaccordancewiththeCPUspecications.Itisnotrecommended

thatthesystembusfrequencybesetbeyondhardwarespecicationssinceitdoesnotmeetthe

standard requirements for the peripherals. If you wish to set the frequency beyond the standard

specications,pleasedosoaccordingtoyourhardwarespecicationsincludingtheCPU,graphics

card, memory, hard drive, etc.

Installing the CPU

Locate the pin one (denoted by a small triangle) of the CPU socket and the CPU.

1-4 Installing the Memory

DualChannelMemoryConguration

ThismotherboardprovidesfourDDR3memorysocketsandsupportsDualChannelTechnology.After the

memoryisinstalled,theBIOSwillautomaticallydetectthespecicationsandcapacityofthememory.Enabling

Dual Channel memory mode will double the original memory bandwidth.

ThefourDDR3memorysocketsaredividedintotwochannelsandeachchannelhastwomemorysocketsas

following:

ChannelA:DDR3_2,DDR3_4

ChannelB:DDR3_1,DDR3_3

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 supported memory speeds and memory modules.)

• 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.

AM3+ Socket

A Small Triangle

Marking Denotes Pin

One of the Socket

AM3+/AM3 CPU

A Small Triangle

Marking Denotes CPU

Pin One

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