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Ai Tweaker menu - cpu nb voltage

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3.5 Ai Tweaker menu The Ai Tweaker menu items allow you to configure overclocking-related items. Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to malfunction. The configuration options for this chapter vary depending on the CPU and DIMM model you installed on the motherboard. Main Ai Tweaker BIOS SETUP UTILITY Advanced Power Boot Configure System Frequency/Voltage Ai Overclock Tuner CPU Ratio DRAM Frequency CPU/NB Frequency HT Link Speed DRAM Timing Configuration DRAM Driving Configuration Processor Voltage CPU/NB Voltage CPU/LDT Spread Spectrum PCIE Spread Spectrum SATA Spread Spectrum PCI Spread Spectrum [Auto] [Auto] [Auto] [Auto] [Auto] [Auto] [Auto] [Disabled] [Disabled] [Disabled] [Disabled] Tools Exit Select the target CPU frequency, and the relevant parameters will be auto-adjusted. ←→ Select Screen ↑↓ Select Item +- Change Option F1 General Help F10 Save and Exit ESC Exit v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. 3.5.1 Ai Overclock Tuner [Auto] Allows you to select the CPU overclocking options to achieve the desired CPU internal frequency. Select any of these preset overclocking configuration options: Manual Auto D.O.C.P Allows you to individually set overclocking parameters. Loads the optimal settings for the system. Allows you to select a DRAM O.C. profile, and the related parameters will be adjusted automatically. The following two (2) items appear only when you set the Ai Overclock Tuner item to [Manual] and [D.O.C.P]. CPU Bus Frequency [200] Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the and keys to adjust the CPU Bus frequency. You can also type the desired CPU Bus frequency using the numeric keypad. The values range from 200 to 600. PCIE Frequency [100] Use the and keys to adjust the PCIE frequency. You can also type the desired PCIE frequency using the numeric keypad. The values range from 100 to 200. Chapter 3 ASUS M4N98TD EVO 3-11

Section	Page
Contents	3
Notices	7
Safety information	8
About this guide	9
M4N98TD EVO specifications summary	11
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 ASUS unique 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 Layout contents	21
2.2.3 Placement direction	22
2.2.4 Screw holes	22
2.3 Central Processing Unit (CPU)	23
2.3.1 Installing the CPU	23
2.3.2 Installing the CPU heatsink and fan	25
2.4 System memory	28
2.4.1 Overview	28
2.4.2 Memory configurations	29
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 x1 slots	35
2.5.6 PCI Express 2.0 x16 slots	35
2.6 Jumpers	36
2.7 Onboard switches	38
2.8 Connectors	40
2.8.1 Rear panel connectors	40
2.8.2 Audio I/O connections	41
2.8.3 Internal connectors	44
2.8.4. ASUS Q-Connector (system panel)	52
2.9 Onboard LEDs	53
2.10 Starting up for the first time	55
2.11 Turning off the computer	55
Chapter 3: BIOS setup	57
3.1 Knowing BIOS	57
3.2 Updating BIOS	57
3.2.1 ASUS Update utility	58
3.2.2 ASUS EZ Flash 2 utility	60
3.2.3 ASUS CrashFree BIOS 3 utility	61
3.3 BIOS setup program	62
3.3.1 BIOS menu screen	62
3.3.2 Menu bar	62
3.3.3 Navigation keys	63
3.3.4 Menu items	63
3.3.5 Submenu items	63
3.3.6 Configuration fields	63
3.3.7 Pop-up window	63
3.3.8 Scroll bar	63
3.3.9 General help	63
3.4 Main menu	64
3.4.1 Primary IDE Master/Slave; SATA 1–4	64
3.4.2 Storage Configuration	66
3.4.3 System Information	66
3.5 Ai Tweaker menu	67
3.5.1 Ai Overclock Tuner [Auto]	67
3.5.6 DRAM Timing Configuration	68
3.5.2 CPU Ratio [Auto]	68
3.5.3 DRAM Frequency [Auto]	68
3.5.4 CPU/NB Frequency [Auto]	68
3.5.5 HT Link Speed [Auto]	68
3.5.7 DRAM Driving Configuration	69
3.5.8 Processor Voltage [Auto]	70
3.5.9 CPU/NB Voltage [Auto]	70
3.5.10 CPU VDDA Voltage [Auto]	70
3.5.11 DRAM Voltage [Auto]	70
3.5.12 HT Voltage [Auto]	70
3.5.13 NB Voltage [Auto]	70
3.5.14 nForce200 Voltage [Auto]	71
3.5.15 CPU/LDT Spread Spectrum [Disabled]	71
3.5.16 PCIE Spread Spectrum [Disabled]	71
3.5.17 SATA Spread Spectrum [Disabled]	71
3.5.18 PCI Spread Spectrum [Disabled]	71
3.6 Advanced menu	72
3.6.1 CPU Configuration	72
3.6.2 Chipset	74
3.6.3 Onboard Devices Configuration	76
3.6.4 PCIPnP	77
3.6.5 USB Configuration	77
3.7 Power menu	78
3.7.1 Suspend Mode [Auto]	78
3.7.2 ACPI 2.0 Support [Enabled]	78
3.7.3 ACPI APIC Support [Enabled]	78
3.7.4 APM Configuration	79
3.7.5 Hardware Monitor	80
3.8 Boot menu	82
3.8.1 Boot Device Priority	82
3.8.2 Boot Settings Configuration	83
3.8.3 Security	84
3.9 Tools menu	86
3.9.1 ASUS EZ Flash 2	86
3.9.2 Express Gate [Auto]	86
3.9.3 ASUS O.C. Profile	87
3.9.4 AI NET 2	88
3.10 Exit menu	89
Chapter 4: Software support	91
4.1 Installing an operating system	91
4.2 Support DVD information	91
4.2.1 Running the support DVD	91
4.2.2 Obtaining the software manuals	92
4.3 Software information	93
4.3.1 ASUS PC Probe II	93
4.3.2 ASUS AI Suite	94
4.3.3 ASUS Fan Xpert	95
4.3.4 ASUS EPU	96
4.3.6 ASUS Express Gate	97
4.3.6 Audio configurations	98
4.3.7 ASUS AI Nap	99
4.3.8 ASUS TurboV	100
4.3.9 ASUS Turbo Key	101
4.4 RAID configurations	102
4.4.1 RAID definitions	102
4.4.2 Installing Serial ATA hard disks	102
4.4.3 Setting the RAID item in BIOS	103
4.4.4 NVIDIA® MediaShield BIOS RAID configurations	103
4.5 Creating a RAID driver disk	107
4.5.1 Creating a RAID driver disk without entering the OS	107
4.5.2 Creating a RAID driver disk in Windows®	107
4.5.3 Installing the RAID driver during Windows® OS installation	108
4.5.4 Using a USB floppy disk drive	108
Chapter 5: NVIDIA® SLI™ technology support	111
5.1 NVIDIA® SLI™ technology	111
5.1.1 Requirements	111
5.1.2 Installing two SLI-ready graphics cards	111
5.1.3 Installing the device drivers	112
5.1.4 Enabling the NVIDIA® SLI™ technology	112