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Asus P5QC User Manual - Page 88

CPU PLL Voltage [Auto], 3.4.15 FSB Termination Voltage [Auto] - ddr3 ddr2

UPC - 610839162864

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• Refer to the CPU documentation before setting the CPU Vcore voltage. Setting a high VCore voltage may damage the CPU permanently, and setting a low VCore voltage may make the system unstable. • The value [2.10000V] of the CPU Voltage item is supported only if the OV_CPU jumper is enabled, otherwise the maximum voltage supported is [1.70000V]. See 4. CPU / Northbridge overvoltage setting on page 2-23 for details. 3.4.14 CPU PLL Voltage [Auto] Allows you to set the CPU PLL voltage. The values range from 1.50V to 2.78V with a 0.02V interval. 3.4.15 FSB Termination Voltage [Auto] Allows you to set the front side bus termination voltage. The values range from 1.20V* to 1.90V with a 0.02V interval. The minimum value of this item becomes 1.10V when a 45nm CPU is installed. 3.4.16 DRAM Voltage [Auto] Allows you to set the DRAM voltage. For DDR2, the values range from 1.80V to 3.08V with a 0.02V interval. For DDR3, the values range from 1.50V to 2.78V with a 0.02V interval. 3.4.17 NB Voltage [Auto] Allows you to set the North Bridge voltage. The values range from 1.10V to 2.20V* with a 0.02V interval. • The value [2.20V] of the NB Voltage item is supported only if the OV_NB jumper is enabled, otherwise the maximum voltage supported is [1.90V]. See 4. CPU / Northbridge overvoltage setting on page 2-23 for details. • Setting the CPU PLL Voltage, FSB Termination Voltage, DRAM Voltage and NB Voltage items to a high level may damage the chipset, memory module and CPU permanently. Proceed with caution. • Some values of the CPU PLL Voltage, FSB Termination Voltage, DRAM Voltage and NB Voltage items are labeled in different color, indicating the risk levels of high voltage settings. Refer to the table below for details. • The system may need better cooling system to work stably under high voltage settings. 3-20 Chapter 3: BIOS setup

Section	Page
Contents	3
Notices	8
Safety information	9
About this guide	10
P5QC 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 unique features	19
1.3.3 ASUS Intelligent Performance and Overclocking features	23
Chapter 2: Hardware information	25
2.1 Before you proceed	27
Onboard LED	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	43
2.4.4 Removing a DIMM	43
2.5 Expansion slots	44
2.5.1 Installing an expansion card	44
2.5.2 Configuring an expansion card	44
2.5.3 Interrupt assignments	45
2.5.4 PCI slots	46
2.5.5 PCI Express x1 slots	46
2.5.6 PCI Express 2.0 x16 slot	46
2.6 Jumpers	47
2.7 Connectors	50
2.7.1 Rear panel connectors	50
2.7.2 Internal connectors	52
2.8 Starting up for the first time	65
2.9 Turning off the computer	66
2.9.1 Using the OS shut down function	66
2.9.2 Using the dual function power switch	66
Chapter 3: BIOS setup	67
3.1 Managing and updating your BIOS	69
3.1.1 ASUS Update utility	69
3.1.2 ASUS EZ Flash 2 utility	72
3.1.3 AFUDOS utility	73
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 Dynamic Write Control [Auto]	86
3.4.8 DRAM Read Training [Auto]	86
3.4.9 DRAM Write Training [Auto]	87
3.4.10 MEM. OC Charger [Auto]	87
3.4.11 Ai Clock Twister [Auto]	87
3.4.12 Ai Transaction Booster [Auto]	87
3.4.13 CPU Voltage [Auto]	87
3.4.14 CPU PLL Voltage [Auto]	88
3.4.15 FSB Termination Voltage [Auto]	88
3.4.16 DRAM Voltage [Auto]	88
3.4.17 NB Voltage [Auto]	88
3.4.18 SB Voltage [Auto]	89
3.4.19 PCIE SATA Voltage [Auto]	89
3.4.20 Load-Line Calibration [Auto]	89
3.4.21 CPU Spread Spectrum [Auto]	89
3.4.22 PCIE Spread Spectrum [Auto]	89
3.5 Advanced menu	90
3.5.1 CPU Configuration	90
3.5.2 Chipset	92
3.5.3 Onboard Device Configuration	93
3.5.4 USB Configuration	94
3.5.5 PCIPnP	95
3.6 Power menu	96
3.6.1 Suspend Mode [Auto]	96
3.6.2 Repost Video on S3 Resume [No]	96
3.6.3 ACPI 2.0 Support [Disabled]	96
3.6.4 ACPI APIC Support [Enabled]	96
3.6.5 APM Configuration	97
3.6.6 Hardware Monitor	98
3.7 Boot menu	100
3.7.1 Boot Device Priority	100
3.7.2 Boot Settings Configuration	101
3.7.3 Security	102
3.8 Tools menu	104
3.8.1 ASUS EZ Flash 2	104
3.8.2 Drive Xpert Control [Auto]	105
3.8.3 Drive Xpert Mode Update [Last setting]	105
3.8.4 Express Gate	106
3.8.5 ASUS O.C. Profile	107
3.8.6 AI NET 2	108
3.9 Exit menu	109
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 MyLogo 2™	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	150
4.3.12 ASUS Express Gate	161
4.4 RAID configurations	171
4.4.1 RAID definitions	171
4.4.2 Installing Serial ATA hard disks	172
4.4.3 Intel® RAID configurations	172
4.5 Creating a RAID driver disk	180
4.5.1 Creating a RAID driver disk without entering the OS	180
4.5.2 Creating a RAID driver disk in Windows®	180
Appendix: CPU features	183
A.1 Intel® EM64T	185
Using the Intel® EM64T feature	185
A.2 Enhanced Intel SpeedStep® Technology (EIST)	185
A.2.1 System requirements	185
A.2.2 Using the EIST	186
A.3 Intel® Hyper-Threading Technology	187