Asus A55M-A USB3 A55M-A User's Manual - Page 57

Chapter 2: BIOS information

2-15

2.4.10

DIGI+ VRM

CPU Load Line Calibration [Auto]

Load-line Calibration is defined by 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 increase the CPU and

VRM thermal. This item allows you to adjust the voltage range from the following percentages

to boost the system performance. Configuration options: [Auto] [Regular] [Medium] [High]

[Extreme]

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

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%]

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. 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.

[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.

CPU Voltage Frequency [300]

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

a higher frequency gets faster transient response. Use the <+> and <-> keys to adjust the

value. The values range from 200k Hz to 350k Hz with a 50k Hz interval.

CPU Power Duty Control [T.Probe]

[T.Probe]

Maintains the VRM thermal balance.

[Extreme]

Maintains the VRM current balance.

Do not remove the thermal module while changing the DIGI+VRM related parameters. The

thermal conditions should be monitored.

Section	Page
Safety information	6
About this guide	7
A55M-A Series specifications summary	9
Package contents	11
Product introduction	13
1.1 Special features	13
1.1.1 Product highlights	13
1.1.2 ASUS DIGI+ VRM	13
1.1.3 ASUS Exclusive Features	14
1.2 Before you proceed	16
1.3 Motherboard overview	17
1.3.1 Placement direction	17
1.3.2 Screw holes	17
1.3.3 Motherboard layout	18
1.3.4 Layout contents	19
1.4 Accelerated Processing Unit (APU)	19
1.4.1 APU installation	20
1.4.2 APU heatsink and fan assembly installation	21
1.5 System memory	23
1.5.1 Overview	23
1.5.2 Memory configurations	24
1.5.3 Installing a DIMM	29
1.6 Expansion slots	30
1.6.1 Installing an expansion card	30
1.6.2 Configuring an expansion card	30
1.6.3 PCI slot	30
1.6.4 PCI Express x1 slot	30
1.6.5 PCI Express x16 slot	30
1.7 Jumpers	32
1.8 Connectors	34
1.8.1 Rear panel ports	34
1.8.2 Internal connectors	35
1.9 Software support	41
1.9.1 Installing an operating system	41
1.9.2 Support DVD information	41
BIOS information	43
2.1 Managing and updating your BIOS	43
2.1.1 ASUS Update utility	43
2.1.2 ASUS EZ Flash 2	44
2.1.3 ASUS CrashFree BIOS 3 utility	45
2.1.4 ASUS BIOS Updater	46
2.2 BIOS setup program	48
2.3 Main menu	52
2.3.1 System Language [English]	52
2.3.2 System Date [Day xx/xx/xxxx]	52
2.3.3 System Time [xx:xx:xx]	52
2.3.4 Security	52
2.4 Ai Tweaker menu	54
2.4.1 Ai Overclock Tuner [Auto]	55
2.4.2 Memory Frequency [Auto]	55
2.4.3 APU Multiplier [Auto]	55
2.4.4 NB Frequency [Auto]	55
2.4.5 EPU Power Saving Mode [Disabled]	55
2.4.6 DRAM Timing Control	56
2.4.7 APU Voltage [Offset Mode]	56
2.4.8 DRAM Voltage [Auto]	56
2.4.9 SB 1.1V Voltage [Auto]	56
2.4.10 DIGI+ VRM	57
2.5 Advanced menu	58
2.5.1 CPU Configuration	58
2.5.2 SATA Configuration	60
2.5.3 USB Configuration	61
2.5.4 NB Configuration	61
2.5.5 Onboard Devices Configuration	62
2.5.6 APM	63
2.5.7 Network Stack	64
2.6 Monitor menu	65
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	65
2.6.2 CPU / Chassis fan Speed [xxxx RPM] or [Ignore] / [N/A]	65
2.6.3 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	65
2.6.4 CPU Q-Fan Control [Enabled]	65
2.6.5 Anti Surge Support [Auto]	66
2.7 Boot menu	67
2.7.1 Fast Boot [Enabled]	68
2.7.2 Full Screen Logo [Enabled]	68
2.7.3 Post Delay Time [3 sec]	69
2.7.4 Bootup NumLock State [On]	69
2.7.5 Wait for ‘F1’ If Error [Enabled]	69
2.7.6 Option ROM Messages [Force BIOS]	69
2.7.7 Interrupt 19 Capture [Postponed]	69
2.7.8 Setup Mode [EZ Mode]	69
2.7.9 CSM Parameters	70
2.7.10 Secure Boot	70
2.7.11 Boot Option Priorities	71
2.7.12 Boot Override	71
2.8 Tools menu	72
2.8.1 ASUS EZ Flash 2 Utility	72
2.8.2 ASUS SPD Information	72
2.8.3 ASUS O.C. Profile	72
2.9 Exit menu	73
Appendices	75
Notices	75

Asus A55M-A USB3 A55M-A User's Manual - Page 57

Digi+ Vrm

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