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DIGI+VRM, CPU/NB Load Line Calibration [Auto]

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3.5.13 DIGI+VRM CPU Load Line Calibration [Auto] CPU Load Line Calibration is based on AMD VRM specifications and affects CPU voltage. The CPU working voltage will decrease proportionally to CPU loading. Higher load line calibration would get higher voltage and better overclocking performance but will increase the CPU and VRM thermal conditions. This item allows you to adjust the voltage range from the following percentages to boost the system performance: 0% (Regular), 25% (Medium), 50% (High), 75% (Ultra High), and 100% (Extreme). Configuration options: [Auto] [Regular] [Medium] [High] [Ultra High] [Extreme] The actual performance boost may vary depending on your CPU specification. CPU/NB Load Line Calibration [Auto] Allows you to select the CPU/NB Load Line Calibration mode. Configuration options: [Auto] [Regular] [High] [Extreme] CPU Current Capability [100%] 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: [100%] [110%] [120%] [130%] [140%] CPU/NB Current Capability [100%] 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: [100%] [110%] [120%] [130%] CPU Power Phase Control [Standard] Phase number is the number of working VRM phase. Increase the phase number under heavy system loading to get more transient and better thermal performance. Reduce the phase number under light system loading to increase VRM efficiency. [Standard] Proceeds to phase control depending on the CPU loading. [Optimized] Loads the ASUS optimized phase tuning profile. [Extreme] Proceeds to the full phase mode. [Manual Adjustment] Allows manual adjustment. CPU Voltage Frequency [Auto] Switching frequency will affect the VRM transient response and thermal condition. Setting a higher frequency gets a faster transient response. [Auto] Allows you to enable or disable the Spread Spectrum item. [Manual] Allows you to manually set the frequency with a 10k Hz interval. VRM Spread Spectrum [Disabled] This item appears only when you set the CPU Voltage Frequency item to [Auto] and allows you to enable the spread spectrum to enhance system stability. Chapter 3 3-20 Chapter 3: BIOS setup

Section	Page
Notices	6
Safety information	7
About this guide	8
F1A75-V PRO specifications summary	10
Chapter 1: Product introduction	15
1.1 Welcome!	15
1.2 Package contents	15
1.3 Special features	16
1.3.1 Product highlights	16
1.3.2 Dual Intelligent Processors 2 – DIGI+ VRM	16
1.3.3 ASUS Digital Power Design	17
1.3.4 ASUS Exclusive Features	17
Chapter 2: Hardware information	21
2.1 Before you proceed	21
2.2 Motherboard overview	22
2.2.1 Motherboard layout	22
2.2.2 Layout contents	23
2.2.3 Placement direction	24
2.2.4 Screw holes	24
2.3 Accelerated Processing Unit (APU)	25
2.3.1 Installing the APU	25
2.3.2 Installing the CPU heatsink and fan	27
2.4 System memory	30
2.4.1 Overview	30
2.4.2 Memory configurations	31
2.4.3 Installing a DIMM	32
2.4.4 Removing a DIMM	32
2.5 Expansion slots	33
2.5.1 Installing an expansion card	33
2.5.2 Configuring an expansion card	33
2.5.3 Interrupt assignments	34
2.5.4 PCI slots	35
2.5.5 PCI Express 2.0 x1 slots	35
2.5.6 PCI Express 2.0 x16 slots	35
2.6 Jumper	37
2.7 Onboard switches	38
2.8 Connectors	41
2.8.1 Rear panel connectors	41
2.8.2 Audio I/O connections	45
2.8.3 Internal connectors	47
2.8.4 ASUS Q-Connector (system panel)	54
2.9 Onboard LEDs	55
2.10 Starting up for the first time	57
2.11 Turning off the computer	57
Chapter 3: BIOS setup	59
3.1 Knowing BIOS	59
3.2 Updating BIOS	59
3.2.1 ASUS Update utility	60
3.2.2 ASUS EZ Flash 2	63
3.2.3 ASUS CrashFree BIOS 3 utility	64
3.2.4 ASUS BIOS Updater	65
3.3 BIOS setup program	68
3.4 Main menu	72
3.4.1 System Language [English]	72
3.4.2 System Date [Day xx/xx/xxxx]	72
3.4.3 System Time [xx:xx:xx]	72
3.4.4 Security	72
3.5 Ai Tweaker menu	74
3.5.1 Ai Overclock Tuner [Auto]	75
3.5.2 Memory Frequency [Auto]	76
3.5.3 APU Multiplier [Auto]	76
3.5.4 EPU Power Saving Mode [Disabled]	76
3.5.5 OC Tuner	76
3.5.6 DRAM Timing Control	76
3.5.7 CPU Voltage [Offset Mode]	76
3.5.8 DRAM Voltage [Auto]	77
3.5.9 SB 1.1V Voltage [Auto]	77
3.5.10 1.1Vsb Voltage [Auto]	77
3.5.11 APU1.2V Voltage [Auto]	77
3.5.12 VDDA Voltage [Auto]	77
3.5.13 DIGI+VRM	78
3.5.14 APU Spread Spectrum [Auto]	79
3.6 Advanced menu	80
3.6.1 CPU Configuration	80
3.6.2 SATA Configuration	81
3.6.3 USB Configuration	82
3.6.4 NB Configuration	82
3.6.5 Onboard Devices Configuration	83
3.6.6 APM	84
3.7 Monitor menu	85
3.7.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	85
3.7.2 CPU / Chassis / Power Fan Speed [xxxx RPM] or [Ignore] / [N/A]	85
3.7.3 CPU Q-Fan Control [Disabled]	85
3.7.4 Chassis Q-Fan Control [Disabled]	86
3.7.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	87
3.7.6 Anti Surge Support [Enabled]	87
3.8 Boot menu	88
3.8.1 Bootup NumLock State [On]	88
3.8.2 Full Screen Logo [Enabled]	88
3.8.3 Wait for ‘F1’ If Error [Enabled]	88
3.8.4 Option ROM Messages [Force BIOS]	89
3.8.5 Setup Mode [EZ Mode]	89
3.8.6 Boot Option Priorities	89
3.8.7 Boot Override	89
3.9 Tools menu	90
3.9.1 ASUS EZ Flash Utility	90
3.9.2 ASUS O.C. Profile	90
3.9.3 ASUS SPD Information	90
3.10 Exit menu	91
Chapter 4: Software support	93
4.1 Installing an operating system	93
4.2 Support DVD information	93
4.2.1 Running the support DVD	93
4.2.2 Obtaining the software manuals	94
4.3 Software information	95
4.3.1 ASUS AI Suite II	95
4.3.2 DIGI+ VRM	96
4.3.3 TurboV EVO	99
4.3.4 EPU	103
4.3.5 FAN Xpert	104
4.3.6 Probe II	105
4.3.7 Ai Charger+	106
4.4 RAID configurations	107
4.4.1 RAID definitions	107
4.4.2 Installing Serial ATA hard disks	108
4.4.3 Setting the RAID item in BIOS	108
4.4.4 AMD® Option ROM Utility	109
4.5 Creating a RAID driver disk	112
4.5.1 Creating a RAID driver disk without entering the OS	112
4.5.2 Creating a RAID driver disk in Windows®	112
4.5.3 Installing the RAID driver during Windows® OS installation	113
4.5.4 Using a USB floppy disk drive	114
Chapter 5: Multiple GPU technology support	117
5.1 AMD® CrossFireX™ technology	117
5.1.1 Requirements	117
5.1.2 Before you begin	117
5.1.3 Installing two CrossFireX™ graphics cards	118
5.1.4 Installing the device drivers	119
5.1.5 Enabling the AMD® CrossFireX™ technology	119
5.2 AMD® Dual Graphics technology	120
5.2.1 System requirements	120
5.2.2 Before you proceed	120
5.2.3 Installing AMD Chipset Driver	120

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3-20

Chapter 3: BIOS setup

Chapter 3

3.5.13

DIGI+VRM

CPU Load Line Calibration [Auto]

CPU Load Line Calibration is based on AMD VRM speciﬁcations and affects CPU voltage.

The CPU working voltage will decrease proportionally to CPU loading. Higher load line

calibration would get higher voltage and better overclocking performance but will increase the

CPU and VRM thermal conditions.

This item allows you to adjust the voltage range from the following percentages to boost the

system performance: 0% (Regular), 25% (Medium), 50% (High), 75% (Ultra High), and 100%

(Extreme). Conﬁguration options: [Auto] [Regular] [Medium] [High] [Ultra High] [Extreme]

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

CPU/NB Load Line Calibration [Auto]

Allows you to select the CPU/NB Load Line Calibration mode. Conﬁguration options: [Auto]

[Regular] [High] [Extreme]

CPU Current Capability [100%]

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: [100%] [110%] [120%] [130%] [140%]

CPU/NB Current Capability [100%]

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

CPU Power Phase Control [Standard]

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

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

phase number under light system loading to increase VRM efﬁciency.

[Standard]

Proceeds to phase control depending on the CPU loading.

[Optimized]

Loads the ASUS optimized phase tuning proﬁle.

[Extreme]

Proceeds to the full phase mode.

[Manual Adjustment]

Allows manual adjustment.

CPU Voltage Frequency [Auto]

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

higher frequency gets a faster transient response.

[Auto]

Allows you to enable or disable the Spread Spectrum item.

[Manual]

Allows you to manually set the frequency with a 10k Hz interval.

VRM Spread Spectrum [Disabled]

This item appears only when you set the CPU Voltage Frequency item to [Auto] and

allows you to enable the spread spectrum to enhance system stability.