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CPU VCCSA Boot Up Voltage [Auto]

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CPU VCORE Boot Up Voltage [Auto] This adjusts the voltage for CPU at initial boot up. Set to higher values for better overclocking results. Use the and keys to adjust the value. The values range from 0.800 to 1.700 with 0.005 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] 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. 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 adjusts the voltage for VCCSA at initial boot up. Set to higher values for better overclocking results. Use the and keys to adjust the value. The values range from 0.800 to 1.700 with 0.005 interval. CPU Voltage Frequency [Auto] Switching frequency will affect the transient response and component thermal. Setting a higher frequency gets faster transient response. [Auto] [Manual] Allows you to enable or disable the CPU Spread Spectrum item. Allows you to manually set the CPU Fixed Frequency from 300k~500kHz with a 10k Hz interval. CPU Spread Spectrum [Disabled] This item appears when you set the CPU Voltage Frequency item to [Auto]. Enable the Spread Spectrum to enhance system stability. Configuration options: [Enabled] [Disabled] CPU Fixed Frequency [300] This item appears when you set the CPU Voltage Frequency item to [Manual]. Use the and keys to adjust the value. The values range from 300k~500kHz with a 10k Hz interval. Do not remove the thermal module when switching to Manual mode. The thermal conditions should be monitored. Chapter 3 ASUS P9X79 WS 3-21

Section	Page
Contents	3
Notices	7
Safety information	9
About this guide	10
P9X79 WS specifications summary	12
Chapter 1: Product introduction	17
1.1 Welcome!	19
1.2 Package contents	19
1.3 Special features	20
1.3.1 Product highlights	20
1.3.2 ASUS Workstation Exclusive Features	21
1.3.3 ASUS features	22
1.3.4 Other special features	26
Chapter 2: Hardware information	27
2.1 Before you proceed	29
2.2 Motherboard overview	30
2.2.1 Motherboard layout	30
2.2.2 Layout contents	31
2.2.3 Central Processing Unit (CPU)	32
2.2.4 System memory	33
2.2.5 Expansion slots	35
2.2.6 Onboard switches	37
2.2.7 Onboard LEDs	40
2.2.8 Jumper	49
2.2.9 Internal connectors	51
2.3 Building your computer system	63
2.3.1 Additional tools and components to build a PC system	63
2.3.2 CPU installation	64
2.3.3 CPU heatsink and fan assembly installation	66
2.3.4 DIMM installation	67
2.3.5 Motherboard installation	68
2.3.6 ATX Power connection	70
2.3.7 SATA device connection	71
2.3.8 Front I/O Connector	72
2.3.9 Rear panel connection	73
2.3.10 Audio I/O connections	74
2.3.11 USB BIOS Flashback	77
2.4 Starting up for the first time	78
2.5 Turning off the computer	79
Chapter 3: BIOS setup	81
3.1 Knowing BIOS	81
3.2 BIOS setup program	81
3.2.1 EZ Mode	82
3.2.2 Advanced Mode	83
3.3 Main menu	85
3.4 Ai Tweaker menu	87
3.4.1 DRAM Timing Control	90
3.4.1 DIGI+ Power Control	100
3.4.2 CPU Performance Settings	104
3.5 Advanced menu	109
3.5.1 CPU Configuration	110
3.5.2 CPU Power Management Configuration	111
3.5.3 System Agent Configuration	112
3.5.4 PCH Configuration	113
3.5.5 SATA Configuration	113
3.5.6 USB Configuration	116
3.5.7 Onboard Devices Configuraton	117
3.5.8 APM	119
3.6 Monitor menu	120
3.7 Boot menu	123
3.8 Tools menu	124
3.8.1 ASUS EZ Flash 2 Utility	125
3.8.2 ASUS DRAM SPD Information	125
3.8.3 ASUS O.C. Profile	126
3.8.4 ASUS Drive Xpert	127
3.9 Exit menu	128
3.10 Updating BIOS	129
3.10.1 ASUS Update utility	129
3.10.2 ASUS EZ Flash 2 utility	132
3.10.3 ASUS CrashFree BIOS 3 utility	133
3.10.4 ASUS BIOS Updater	134
Chapter 4: Software support	137
4.1 Installing an operating system	137
4.2 Support DVD information	137
4.2.1 Running the support DVD	137
4.2.2 Obtaining the software manuals	138
4.3 Software information	139
4.3.1 AI Suite II	139
4.3.2 TurboV EVO	140
4.3.3 DIGI+ Power Control	144
4.3.4 EPU	146
4.3.5 FAN Xpert+	147
4.3.6 Probe II	148
4.3.7 Sensor Recorder	149
4.3.8 USB 3.0 Boost	150
4.3.9 ASUS SSD Caching	151
4.3.10 ASUS Update	152
4.3.11 MyLogo2	153
4.3.12 Audio configurations	155
4.4 RAID configurations	156
4.4.1 RAID definitions	156
4.4.2 Installing Serial ATA hard disks	157
4.4.3 Setting the RAID item in BIOS	157
4.4.4 Intel® Rapid Storage Technology Option ROM utility	157
4.4.5 Marvell RAID utility	161
4.5 Creating a RAID driver disk	165
4.5.1 Creating a RAID driver disk without entering the OS	165
4.5.2 Creating a RAID driver disk in Windows®	165
4.5.3 Installing the RAID driver during Windows® OS installation	166
4.5.4 Using a USB floppy disk drive	167
Chapter 5: Multiple GPU technology support	169
5.1 ATI® CrossFireX™ technology	171
5.1.1 Requirements	171
5.1.2 Before you begin	171
5.1.3 Installing CrossFireX graphics cards	172
5.1.4 Installing the device drivers	173
5.1.5 Enabling the ATI® CrossFireX™ technology	173
5.2 NVIDIA® SLI™ technology	175
5.2.1 Requirements	175
5.2.2 Installing two SLI-ready graphics cards	176
5.2.3 Installing three SLI-ready graphics cards	177
5.2.4 Installing four SLI-ready graphics cards	178
5.2.5 Installing the device drivers	179
5.2.6 Enabling the NVIDIA® SLI™ technology	179
5.3 NVIDIA® CUDA™ technology	182
5.3.1 Requirements	182

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ASUS P9X79 WS

3-21

Chapter 3

CPU VCORE Boot Up Voltage [Auto]

This adjusts the voltage for CPU at initial boot up. Set to higher values for better overclocking

results.

Use the <+> and <-> keys to adjust the value. The values range from 0.800 to 1.700 with

0.005 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]

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.

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 adjusts the voltage for VCCSA at initial boot up. Set to higher values for better

overclocking results.

Use the <+> and <-> keys to adjust the value. The values range from 0.800 to 1.700 with

0.005 interval.

CPU Voltage Frequency [Auto]

Switching frequency will affect the transient response and component thermal. Setting a

higher frequency gets faster transient response.

[Auto]

Allows you to enable or disable the

CPU Spread Spectrum

item.

[Manual]

Allows you to manually set the

CPU Fixed Frequency

from 300k~500kHz

with a 10k Hz interval.

CPU Spread Spectrum [Disabled]

This item appears when you set the

CPU Voltage

Frequency

item to [Auto]. Enable the

Spread Spectrum to enhance system stability.

Conﬁguration options: [Enabled] [Disabled]

CPU Fixed Frequency [300]

This item appears when you set the

CPU Voltage

Frequency

item to [Manual].

Use the <+> and <-> keys to adjust the value. The values range from 300k~500kHz

with a 10k Hz interval.

Do not remove the thermal module when switching to Manual mode. The thermal

conditions should be monitored.