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Asus P5Q User Manual - Page 47

CPU / Northbridge overvoltage setting 3-pin OV_CPU, 3-pin OV_NB

UPC - 610839163014

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2. CPU / Northbridge overvoltage setting (3-pin OV_CPU, 3-pin OV_NB) These jumpers allow you to enable or disable the advanced CPU and Northbridge overvoltage settings in BIOS. Read the following information before you change the jumper settings. Set to pins 1-2 to activate the advanced CPU / Northbridge overvoltage feature. Pins 2-3 (Default) Pins 1-2 (OV Enabled) OV_CPU up to 1.70V up to 2.10V OV_NB up to 1.76V up to 2.20V • Before you change the jumper settings for extra-high overvoltage ability, use the BIOS items introduced in 3.4 Ai Tweaker menu first to adjust the desired CPU and Northbridge performance. Make sure your system function well under the highest BIOS voltage settings before you change the setting of these two jumpers. • Refer to 3.4 Ai Tweaker menu for more information about CPU and Northbridge overvoltage settings. • DO NOT set the OV_CPU jumper to pins 1-2 when you install a new CPU and have not booted for the first time. Doing so may cause the system to halt. For system failure due to the wrong setting of the OV_CPU jumper, shut down the computer and move the cap back to pins 2-3. • The system may need a better cooling system (for example, a water-cooling system) to work stably under high voltage settings. ASUS P5Q 2-21

Section	Page
Contents	3
Notices	8
Safety information	9
About this guide	10
P5Q specifications summary	12
Chapter 1: Product introduction	15
1.1 Welcome!	17
1.2 Package contents	17
1.3 Special features	18
1.3.1 Product highlights	18
1.3.2 ASUS special features	19
1.3.3 ASUS Exclusive Overclocking Features	23
Chapter 2: Hardware information	25
2.1 Before you proceed	27
2.2 Motherboard overview	28
2.2.1 Motherboard layout	28
2.2.2 Layout contents	29
2.2.3 Placement direction	30
2.2.4 Screw holes	30
2.3 Central Processing Unit (CPU)	31
2.3.1 Installing the CPU	32
2.3.2 Installing the CPU heatsink and fan	35
2.3.3 Uninstalling the CPU heatsink and fan	36
2.4 System memory	37
2.4.1 Overview	37
2.4.2 Memory configurations	38
2.4.3 Installing a DIMM	42
2.4.4 Removing a DIMM	42
2.5 Expansion slots	43
2.5.1 Installing an expansion card	43
2.5.2 Configuring an expansion card	43
2.5.3 Interrupt assignments	44
2.5.4 PCI slots	45
2.5.5 PCI Express x1 slots	45
2.5.6 PCI Express 2.0 x16 slot (blue)	45
2.6 Jumper	46
2.7 Connectors	49
2.7.1 Rear panel connectors	49
2.7.2 Internal connectors	51
2.8 Starting up for the first time	63
2.9 Turning off the computer	64
2.9.1 Using the OS shut down function	64
2.9.2 Using the dual function power switch	64
Chapter 3: BIOS setup	65
3.1 Managing and updating your BIOS	67
3.1.1 ASUS Update utility	67
3.1.2 Creating a bootable floppy disk	70
3.1.3 ASUS EZ Flash 2 utility	71
3.1.4 AFUDOS utility	72
3.1.5 ASUS CrashFree BIOS 3 utility	74
3.2 BIOS setup program	75
3.2.1 BIOS menu screen	76
3.2.2 Menu bar	76
3.2.3 Navigation keys	76
3.2.4 Menu items	77
3.2.5 Sub-menu items	77
3.2.6 Configuration fields	77
3.2.7 Pop-up window	77
3.2.8 Scroll bar	77
3.2.9 General help	77
3.3 Main menu	78
3.3.1 System Time [xx:xx:xx]	78
3.3.2 System Date [Day xx/xx/xxxx]	78
3.3.3 Legacy Diskette A [1.44M, 3.5 in.]	78
3.3.4 Language [English]	78
3.3.5 SATA 1–6	79
3.3.6 Storage Configuration	80
3.3.7 AHCI Configuration	81
3.3.8 System Information	82
3.4 Ai Tweaker menu	83
3.4.1 Ai Overclock Tuner [Auto]	83
3.4.2 CPU Ratio Setting [Auto]	84
3.4.3 FSB Strap to North Bridge [Auto]	84
3.4.4 DRAM Frequency [Auto]	84
3.4.5 DRAM Timing Control [Auto]	85
3.4.6 DRAM Static Read Control [Auto]	86
3.4.7 DRAM Read Training [Auto]	86
3.4.8 MEM. OC Charger [Auto]	86
3.4.9 Ai Clock Twister [Auto]	86
3.4.10 Ai Transaction Booster [Auto]	87
3.4.11 CPU Voltage [Auto]	87
3.4.12 CPU PLL Voltage [Auto]	87
3.4.13 FSB Termination Voltage [Auto]	87
3.4.14 DRAM Voltage [Auto]	88
3.4.15 NB Voltage [Auto]	88
3.4.16 SB Voltage [Auto]	88
3.4.17 PCIE SATA Voltage [Auto]	88
3.4.18 Load-Line Calibration [Auto]	89
3.4.19 CPU Spread Spectrum [Auto]	89
3.4.20 PCIE Spread Spectrum [Auto]	89
3.5 Advanced menu	90
3.5.1 TPM Configuration	90
3.5.2 CPU Configuration	91
3.5.3 Chipset	93
3.5.4 Onboard Devices Configuration	94
3.5.5 USB Configuration	95
3.5.6 PCIPnP	96
3.6 Power menu	97
3.6.1 Suspend Mode [Auto]	97
3.6.2 Repost Video on S3 Resume [No]	97
3.6.3 ACPI 2.0 Support [Disabled]	97
3.6.4 ACPI APIC Support [Enabled]	97
3.6.5 APM Configuration	98
3.6.6 Hardware Monitor	99
3.7 Boot menu	101
3.7.1 Boot Device Priority	101
3.7.2 Boot Settings Configuration	102
3.7.3 Security	103
3.8 Tools menu	105
3.8.1 ASUS EZ Flash 2	105
3.8.2 Drive Xpert Control [Auto]	106
3.8.3 Drive Xpert Mode Update [Last Setting]	106
3.8.4 Express Gate	107
3.8.5 ASUS O.C. Profile	108
3.8.6 AI Net 2	109
3.9 Exit menu	110
Chapter 4: Software support	111
4.1 Installing an operating system	113
4.2 Support DVD information	113
4.2.1 Running the support DVD	113
4.2.2 Drivers menu	114
4.2.3 Utilities menu	115
4.2.4 Make disk menu	117
4.2.5 Manual menu	118
4.2.6 ASUS Contact information	118
4.2.7 Other information	119
4.3 Software information	121
4.3.1 ASUS MyLogo2™	121
4.3.2 AI NET2	123
4.3.3 ASUS PC Probe II	124
4.3.4 ASUS AI Suite	130
4.3.5 ASUS AI Nap	132
4.3.6 ASUS Fan Xpert	133
4.3.7 ASUS AI Booster	135
4.3.8 ASUS EPU-6 Engine	136
4.3.9 ASUS AI Direct Link	140
4.3.10 Audio configurations	142
4.3.11 ASUS Drive Xpert	146
4.3.12 ASUS Express Gate	157
4.4 RAID configurations	167
4.4.1 RAID definitions	167
4.4.2 Installing Serial ATA hard disks	168
4.4.3 Intel® RAID configurations	168
4.5 Creating a RAID driver disk	176
4.5.1 Creating a RAID driver disk without entering the OS	176
4.5.2 Creating a RAID driver disk in Windows®	176
Appendix: CPU features	179
A.1 Intel® EM64T	181
Using the Intel® EM64T feature	181
A.2 Enhanced Intel SpeedStep® Technology (EIST)	181
A.2.1 System requirements	181
A.2.2 Using the EIST	182
A.3 Intel® Hyper-Threading Technology	183