Asus Z77-A Specifications Page 78
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Chapter 2: BIOS information2-32
The following four items appear only when you set CPU Fan Prole to [Manual].
CPU Upper Temperature [70]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The
values range from 40ºC to 90ºC.
CPU Fan Max. Duty Cycle(%) [100]
Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The values
range from 20% to 100%. When the CPU temperature reaches the upper limit, the
CPU fan will operate at the maximum duty cycle.
CPU Lower Temperature [20]
Displays the lower limit of the CPU temperature.
CPU Fan Min. Duty Cycle(%) [20]
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values
range from 0% to 100%. When the CPU temperature is under 40ºC, the CPU fan will
operate at the minimum duty cycle.
2.6.6 Chassis1/2 Q-Fan Control [Enabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
2.6.7 Chassis Fan Speed Low Limit [600 RPM]
This item appears only when you enable the Chassis Q-Fan Control feature and allows you
to disable or set the chassis fan warning speed.
Conguration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
Chassis Fan Profile [Standard]
This item appears only when you enable the Chassis Q-Fan Control feature and allows
you to set the appropriate performance level of the chassis fan.
[Standard] Sets to [Standard] to make the chassis fan automatically adjust
depending on the chassis temperature.
[Silent] Sets to [Silent] to minimize the fan speed for quiet chassis fan
operation.
[Turbo] Sets to [Turbo] to achieve maximum chassis fan speed.
[Manual] Sets to [Manual] to assign detailed fan speed control parameters.
- Motherboard 1
- First Edition 2
- January 2013 2
- Contents 3
- Safety information 6
- About this guide 7
- Typography 8
- Z77-A specications summary 10
- Package contents 12
- Product introduction 13
- ErP ready 15
- 1.2 Before you proceed 16
- 1.3 Motherboard overview 17
- 1.3.3 Motherboard layout 18
- CPU LGA1155 socket 19
- 1.4 Intel 19
- 1.4.1 CPU installation 20
- ASUS Z77-A 21
- 1.5 System memory 23
- 1.5.2 Memory congurations 24
- DDR3 2250MHz capability 25
- DDR3 2200MHz capability 25
- DDR3 2133MHz capability 25
- DDR3 2000MHz capability 25
- DDR3 1866MHz capability 26
- DDR3 1600MHz capability 26
- DDR3 1333MHz capability 27
- DDR3 1066MHz capability 30
- 1.5.3 Installing a DIMM 31
- 1.6 Expansion slots 32
- 1.7 Jumpers 34
- KB_USBPWB 35
- 1.8.1 Rear panel ports 36
- 1.8.2 Internal connectors 38
- Z77-A ATX power connectors 39
- Z77-A Intel 40
- SATA 3.0Gb/s connectors 40
- SATA6G_2 41
- SATA6G_1 41
- Z77-A System panel connector 42
- Z77-A Digital audio connector 43
- Z77-A USB2.0 connectors 44
- 1.9 Software support 46
- BIOS information 47
- 2.1.2 ASUS EZ Flash 2 48
- Recovering the BIOS 49
- 2.1.4 ASUS BIOS Updater 50
- Backing up the current BIOS 51
- Updating the BIOS le 52
- 2.2 BIOS setup program 53
- BIOS menu screen 54
- Advanced Mode 55
- Menu items 55
- Back button 55
- Submenu items 55
- Pop-up window 56
- Scroll bar 56
- Navigation keys 56
- General help 56
- Conguration elds 56
- 2.3 Main menu 57
- Administrator Password 58
- User Password 58
- 2.4 Ai Tweaker menu 59
- 2.4.3 Turbo Ratio [Auto] 60
- CPU Ratio [Auto] 61
- Enhanced Intel 61
- 2.4.11 DIGI+ VRM 62
- CPU Offset Mode Sign [+] 64
- DRAM Voltage [Auto] 64
- VCCSA Voltage [Auto] 65
- PCH Voltage [Auto] 65
- CPU PLL Voltage [Auto] 65
- CPU Spread Spectrum [Auto] 65
- 2.5 Advanced menu 66
- 2-21ASUS Z77-A 67
- 2.5.2 PCH Conguration 69
- 2.5.3 SATA Conguration 70
- Graphics Conguration 71
- NB PCIe Conguration 71
- 2.5.5 USB Conguration 72
- 2-27ASUS Z77-A 73
- [Enabled] 73
- 2.5.7 APM 74
- 2.5.8 Network Stack 75
- 2.6 Monitor menu 76
- 2-31ASUS Z77-A 77
- CPU Upper Temperature [70] 78
- CPU Lower Temperature [20] 78
- 2-33ASUS Z77-A 79
- 2.7 Boot menu 80
- 2.7.1 Fast Boot [Enabled] 81
- Launch CSM [Auto] 82
- 2-37ASUS Z77-A 83
- 2.7.10 Secure Boot 84
- 2.7.12 Boot Override 85
- 2.8 Tools menu 86
- 2.9 Exit menu 87
- Appendices 89
- ASUS contact information 91
- DECLARATION OF CONFORMITY 92
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