Table of Contents

GA-K8U-939 Motherboard Layout

6

Block Diagram

7

Chapter 1 Hardware Installation

9

1-1

Considerations Prior to Installation

9

1-2

Feature Summary

10

1-3

Installation of the CPU and Heatsink

11

1-3-1 Installation of the CPU

11

1-3-2 Installation of the Heatsink

12

1-4

Installation of Memory

13

1-5

Installation of Expansion Cards

15

1-6

I/O Back Panel Introduction

16

1-7

Connectors Introduction

17

Chapter 2 BIOS Setup

29

The Main Menu

30

(For example: GA-K8U-939 / BIOS Ver.: F1)

30

2-1

Standard CMOS Features

32

2-2

Advanced BIOS Features

34

2-3

Integrated Peripherals

35

2-4

Power Management Setup

38

2-5

PnP/PCI Configurations

40

2-6

PC Health Status

41

2-7

Frequency/Voltage Control

42

2-8

Load Fail-Safe Defaults

43

2-9

Load Optimized Defaults

43

2-10

Set Supervisor/User Password

44

2-11

Save & Exit Setup

45

2-12

Exit Without Saving

45

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Gigabyte GA-K8U-939 user manual Table of Contents