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4.3.2 DIGI+ VRM ASUS DIGI+ VRM allows you to adjust VRM voltage and frequency modulation to enhance reliability and stability. It also provides the highest power efficiency, generating less heat to longer component lifespan and minimize power loss. After installing AI Suite II from the motherboard support DVD, launch DIGI+ VRM by clicking Tool > DIGI+ VRM on the AI Suite II main menu bar. 1 4 2 5 3 6 Application helps 7 Apply all changes immediately Undo all changes without applying Function description 1. CPU Load-line Calibration Higher load-line calibration could get higher voltage and good overclocking performance but increase the CPU and VRM thermal. 2. CPU Current Capability CPU Current Capability provides wider total power range for overclocking. A higher value setting gets higher VRM power consumption delivery. 3. CPU Voltage Frequency Switching frequency will affect the VRM transient response and component thermal. 4. CPU/NB Load Line Calibration Set to a higher value for system performance, or to a lower value for better thermal solution. 5. CPU/NB Current Capability Setting CPU/NB Current Capability to a higher value increases the overclocking frequency range of the DRAM Controller. 6. CPU Power Phase Control Increase phase number under heavy system loading to get more transient and better thermal performance. Reduce phase number under light system loading to increase VRM efficiency. 7. CPU Power Duty Control CPU Power Duty Control adjusts the current of every VRM phase and the thermal of every phase component. • The actual performance boost may vary depending on your CPU and DRAM specification. • Do not remove the thermal module. The thermal conditions should be monitored. Chapter 4 4-4 Chapter 4: Software support

Section	Page
Contents	3
Notices	6
Safety information	7
About this guide	8
M5A99X EVO specifications summary	10
Chapter 1: Product introduction	13
1.1 Welcome!	13
1.2 Package contents	13
1.3 Special features	14
1.3.1 Product highlights	14
1.3.2 Dual Intelligent Processors 2 with DIGI+ VRM	15
1.3.3 ASUS Exclusive Features	15
1.3.4 ASUS Quiet Thermal Solution	16
1.3.5 ASUS EZ DIY	16
1.3.6 Other special features	17
Chapter 2: Hardware information	19
2.1 Before you proceed	19
2.2 Motherboard overview	20
2.2.1 Motherboard layout	20
2.2.2 Central Processing Unit (CPU)	22
2.2.3 System memory	23
2.2.4 Expansion slots	31
2.2.5 Jumper	33
2.2.6 Onboard switches	34
2.2.7 Onboard LEDs	37
2.2.8 Internal connectors	39
2.3 Building your computer system	48
2.3.1 Additional tools and components to build a PC system	48
2.3.2 CPU installation	49
2.3.3 CPU heatsink and fan assembly installation	50
2.3.4 DIMM installation	53
2.3.5 Motherboard installation	54
2.3.6 ATX Power connection	56
2.3.7 SATA device connection	57
2.3.8 Front I/O Connector	58
2.3.9 Expension Card installation	59
2.3.10 Rear panel connection	60
2.3.11 Audio I/O connections	62
2.4 Starting up for the first time	64
2.5 Turning off the computer	64
Chapter 3: BIOS setup	65
3.1 Knowing BIOS	65
3.2 BIOS setup program	65
3.2.1 EZ Mode	66
3.2.2 Advanced Mode	67
3.3 Main menu	69
3.4 Ai Tweaker menu	71
3.5 Advanced menu	77
3.5.1 CPU Configuration	78
3.5.2 North Bridge Configuration	79
3.5.3 SATA Configuration	80
3.5.4 USB Configuration	82
3.5.5 CPU Core On/Off Function	83
3.5.6 Onboard Devices Configuration	83
3.5.7 APM	85
3.6 Monitor menu	86
3.7 Boot menu	88
3.8 Tools menu	90
3.8.1 ASUS EZ Flash 2	90
3.8.2 ASUS SPD Information	91
3.8.3 ASUS O.C. Profile	92
3.9 Exit menu	93
3.10 Updating BIOS	94
3.10.1 ASUS Update utility	94
3.10.2 ASUS EZ Flash 2 utility	97
3.10.3 ASUS BIOS Updater	99
Chapter 4: Software support	103
4.1 Installing an operating system	103
4.2 Support DVD information	103
4.2.1 Running the support DVD	103
4.2.2 Obtaining the software manuals	104
4.3 Software information	105
4.3.1 AI Suite II	105
4.3.2 DIGI+ VRM	106
4.3.3 TurboV EVO	107
4.3.4 EPU	111
4.3.5 FAN Xpert	112
4.3.6 Probe II	113
4.3.7 Sensor Recorder	114
4.3.8 Ai Charger+	115
4.3.9 Monitor	116
4.3.10 System Information	117
4.3.11 Audio configurations	118
4.4 RAID configurations	119
4.4.1 RAID definitions	119
4.4.2 Installing Serial ATA hard disks	120
4.4.3 Setting the RAID item in BIOS	120
4.4.4 AMD® Option ROM Utility	121
4.5 Creating a RAID driver disk	124
4.5.1 Creating a RAID driver disk without entering the OS	124
4.5.2 Creating a RAID driver disk in Windows®	124
4.5.3 Installing the RAID driver during Windows® OS installation	125
4.5.4 Using a USB floppy disk drive	126
Chapter 5: Multiple GPU technology support	129
5.1 ATI® CrossFireX™ technology	129
5.1.1 Requirements	129
5.1.2 Before you begin	129
5.1.3 Installing two CrossFireX™ graphics cards	130
5.1.4 Installing the device drivers	131
5.1.5 Enabling the ATI® CrossFireX™ technology	131
5.2 NVIDIA® SLI™ technology	132
5.2.1 Requirements	132
5.2.2 Installing two SLI-ready graphics cards	132
5.2.3 Installing the device drivers	133

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Chapter 4: Software support

Chapter 4

4.3.2

DIGI+ VRM

ASUS DIGI+ VRM allows you to adjust VRM voltage and frequency modulation to enhance

reliability and stability. It also provides the highest power efficiency, generating less heat to

longer component lifespan and minimize power loss.

After installing AI Suite II from the motherboard support DVD, launch DIGI+ VRM by

clicking

Tool > DIGI+ VRM

on the AI Suite II main menu bar.

Function description

1. CPU Load-line Calibration

Higher load-line calibration could get higher voltage and good overclocking performance but increase

the CPU and VRM thermal.

2. CPU Current Capability

CPU Current Capability provides wider total power range for overclocking. A higher value setting gets

higher VRM power consumption delivery.

3. CPU Voltage Frequency

Switching frequency will affect the VRM transient response and component thermal.

4. CPU/NB Load Line Calibration

Set to a higher value for system performance, or to a lower value for better thermal solution.

5. CPU/NB Current Capability

Setting CPU/NB Current Capability to a higher value increases the overclocking frequency range of the

DRAM Controller.

6. CPU Power Phase Control

Increase phase number under heavy system loading to get more transient and better thermal

performance. Reduce phase number under light system loading to increase VRM efficiency.

7. CPU Power Duty Control

CPU Power Duty Control adjusts the current of every VRM phase and the thermal of every phase

component.

•

The actual performance boost may vary depending on your CPU and DRAM

specification.

•

Do not remove the thermal module. The thermal conditions should be monitored.

Application helps

Apply all changes

immediately

Undo all changes

without applying