Asus SABERTOOTH X79 User Manual - Page 74

3-12

Chapter 3: BIOS setup

Chapter 3

The actual performance boost may vary depending on your CPU specification.

CPU Current Capability [Auto]

This item provides wider total power range for overclocking. A higher value brings a

wider total power range and extends the overclocking frequency range simultaneously.

Configuration options: [Auto] [100%] [110%] [120%] [130%] [140%]

CPU VCORE Boot Up Voltage [Auto]

This item controls the voltage for CPU at initial boot. Set higher value for better

overclockability. The values range from 0.800V to 1.700V with a 0.005V interval.

VCCSA Load-line calibration [Auto]

The behavior of the DRAM controller is decided by VCCSA Load-Line. Set to a higher

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

Configuration options: [Auto] [Regular] [High] [Extreme]

VCCSA Current Capability [100%]

Allows you to set the VCCSA current capability. A higher value brings wider total DRAM

controller power range and extends the overclocking frequency range simultaneously.

Configuration options: [100%] [110%] [120%] [130%]

CPU VCCSA Boot Up Voltage [Auto]

This item controls the voltage for CPU VCCSA at initial boot. Set higher value for better

overclockability. The values range from 0.800V to 1.700V with a 0.005V interval.

CPU Voltage Frequency [Auto]

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

frequency gets quicker transient response.

Configuration options: [Auto] [Manual]

CPU Fixed Frequency [XXX]

This item appears only when you set the

CPU Voltage Frequency

item to [manual]

and allows you to set a CPU fixed frequency. The values range from 300kHz to 500kHz

with a 10kHz interval.

CPU Spread Spectrum [Diasbled]

[Disabled]

Enhances the BCLK overclocking ability.

[Enabled]

Sets to [Enabled] for EMI control.

CPU Power Duty Control [T.Probe]

[T.Probe]

Maintains the VRM thermal balance.

[Extreme]

Maintains the VRM current balance.

CPU Power Phase Control [Auto]

Phase number is the number of working VRM phase. Increasing phase number under

heavy system loading to get more transient and better thermal performance. Reducing

phase number under light system loading to increase VRM efficiency

[Auto]

Loads the settings for the system automatically.

[Standard]

Proceeds phase control depending on the CPU loading.

[Optimized]

Loads the ASUS optimized phase tuning profile.

[Extreme]

Proceeds the full phase mode.

[Manual Adjustment]

Allows manual adjustment for Regular/Medium/Fast/Ultra

Fast options.

Section	Page
SABERTOOTH X79 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 “Ultimate COOL!” Thermal Solutions	15
1.3.3 “TUF ENGINE!” Power Design	15
1.3.4 “Safe & Stable!” Guardian Angel	16
1.3.5 ASUS EZ DIY	16
1.3.6 ASUS Exclusive Features	17
1.3.7 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	30
2.2.5 Jumper	32
2.2.6 Onboard switch	33
2.2.7 Onboard LEDs	34
2.2.8 Internal connectors	35
2.3 Building your computer system	44
2.3.1 Additional tools and components to build a PC system	44
2.3.2 CPU installation	45
2.3.3 CPU heatsink and fan assembly installation	47
2.3.4 DIMM installation	48
2.3.5 Motherboard installation	49
2.3.6 Thermal Armor for ASUS SABERTOOTH X79	51
2.3.7 ATX Power connection	53
2.3.8 SATA device connection	54
2.3.9 Front I/O Connector	55
2.3.10 Expension Card installation	56
2.3.11 Rear panel connection	57
2.3.12 Audio I/O connections	59
2.3.13 USB BIOS Flashback	61
2.4 Starting up for the first time	62
2.5 Turning off the computer	62
Chapter 3: BIOS setup	63
3.1 Knowing BIOS	63
3.2 BIOS setup program	63
3.2.1 EZ Mode	64
3.2.2 Advanced Mode	65
3.3 Main menu	67
3.4 Ai Tweaker menu	69
3.5 Advanced menu	79
3.5.1 CPU Configuration	80
3.5.2 PCH Configuration	82
3.5.3 SATA Configuration	82
3.5.4 USB Configuration	84
3.5.5 Onboard Devices Configuraton	85
3.5.6 APM	87
3.6 Monitor menu	88
3.7 Boot menu	92
3.8 Tool menu	94
3.8.1 ASUS EZ Flash 2 Utility	94
3.8.2 ASUS DRAM SPD Information	95
3.8.3 ASUS O.C. Profile	96
3.8.4 ASUS Drive Xpert	97
3.9 Exit menu	98
3.10 Updating BIOS	99
3.10.1 ASUS Update utility	99
3.10.2 ASUS EZ Flash 2 utility	102
3.10.3 ASUS CrashFree BIOS 3 utility	103
3.10.4 ASUS BIOS Updater	104
Chapter 4: Software support	107
4.1 Installing an operating system	107
4.2 Support DVD information	107
4.2.1 Running the support DVD	107
4.2.2 Obtaining the software manuals	108
4.3 Software information	109
4.3.1 AI Suite II	109
4.3.2 ASUS TUF Thermal Radar	110
4.3.3 TurboV EVO	114
4.3.4 DIGI+ Power Control	117
4.3.5 Sensor Recorder	119
4.3.6 USB 3.0 Boost	120
4.3.7 ASUS SSD Caching	121
4.3.8 ASUS Update	122
4.3.9 MyLogo2	123
4.3.10 Audio configurations	125
4.4 RAID configurations	126
4.4.1 RAID definitions	126
4.4.2 Installing Serial ATA hard disks	127
4.4.3 Setting the RAID item in BIOS	127
4.4.4 Intel® Rapid Storage Technology Option ROM utility	127
4.4.5 Marvell RAID utility	131
4.5 Creating a RAID driver disk	135
4.5.1 Creating a RAID driver disk without entering the OS	135
4.5.2 Creating a RAID driver disk in Windows®	135
4.5.3 Installing the RAID driver during Windows® OS installation	136
4.5.4 Using a USB floppy disk drive	137
Chapter 5: Multiple GPU technology support	139
5.1 AMD® CrossFireX™ technology	139
5.1.1 Requirements	139
5.1.2 Before you begin	139
5.1.3 Installing two CrossFireX™ graphics cards	140
5.1.4 Installing the device drivers	141
5.1.5 Enabling the AMD® CrossFireX™ technology	141
5.2 NVIDIA® SLI™ technology	142
5.2.1 Requirements	142
5.2.2 Installing two SLI-ready graphics cards	142
5.2.3 Installing the device drivers	143

Asus SABERTOOTH X79 User Manual - Page 74

CPU Voltage Frequency - vcore high

Page 74 highlights