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Asus P8H61 PRO User Manual - Page 38

Onboard switches - cpu support

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5. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1, 4-pin CHA_FAN2) Connect the fan cables to the fan connectors on the motherboard, making sure that the black wire of each cable matches the ground pin of the connector. DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. They are not jumpers! DO NOT place jumper caps on the fan connectors. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND P8H61 PRO CHA_FAN1 CHA_FAN2 GND CPU FAN PWR CPU FAN IN CPU FAN PWM CPU FAN PWM CPU FAN IN CPU FAN PWR GND P8H61 PRO Fan connectors • The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power. 1.11 Onboard switches Onboard switches allow you to fine-tune performance when working on a bare or open-case system. This is ideal for overclockers and gamers who continually change settings to enhance system performance. 1. Turbo Key II switch This switch allows you to enable or disable the Turbo Key II function. P8H61 PRO P8H61 PRO Turbo Key II switch 1-26 Chapter 1: Product introduction

Section	Page
Notices	6
Safety information	7
About this guide	7
P8H61 PRO specifications summary	9
Chapter 1	13
Product introduction	13
1.1 Welcome!	13
1.2 Package contents	13
1.3 Special features	13
1.3.1 Product highlights	13
1.3.2 Innovative ASUS features	15
1.4 Before you proceed	17
1.5 Motherboard overview	18
1.5.1 Placement direction	18
1.5.2 Screw holes	18
1.5.3 Motherboard layout	19
1.5.4 Layout contents	19
1.6 Central Processing Unit (CPU)	20
1.6.1 Installing the CPU	20
1.6.2 Installing the CPU heatsink and fan	23
1.6.3 Uninstalling the CPU heatsink and fan	24
1.7 System memory	25
1.7.1 Overview	25
1.7.2 Memory configurations	26
1.7.3 Installing a DIMM	28
1.7.4 Removing a DIMM	28
1.8 Expansion slots	29
1.8.1 Installing an expansion card	29
1.8.2 Configuring an expansion card	29
1.8.3 PCI slots	29
1.8.4 PCI Express x1 slots	29
1.8.5 PCI Express x16 slot	29
1.9 Jumpers	30
1.10 Connectors	31
1.10.1 Rear panel connectors	31
1.10.2 Internal connectors	33
1.11 Onboard switches	38
1.12 Onboard LEDs	40
1.13 Software support	41
1.13.1 Installing an operating system	41
1.13.2 Support DVD information	41
Chapter 2	43
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	49
2.3 Main menu	53
2.3.1 System Language [English]	53
2.3.2 System Date [Day xx/xx/xxxx]	53
2.3.3 System Time [xx:xx:xx]	53
2.3.4 Security	53
2.4 Ai Tweaker menu	55
2.4.1 Ai Overclock Tuner [Auto]	55
2.4.2 Memory Frequency [Auto]	56
2.4.3 EPU Power Saving Mode [Disabled]	56
2.4.4 OC Tuner	56
2.4.5 DRAM Timing Control	56
2.4.6 CPU Power Management	56
2.4.7 CPU Offset Mode Sign [+]	57
2.4.8 DRAM Voltage [Auto]	58
2.4.9 VCCIO Voltage [Auto]	58
2.4.10 CPU PLL Voltage [Auto]	58
2.4.11 PCH Voltage [Auto]	58
2.4.12 Load-Line Calibration [Auto]	58
2.4.13 CPU Spread Spectrum [Auto]	58
2.5 Advanced menu	59
2.5.1 CPU Configuration	59
2.5.2 System Agent Configuration	60
2.5.3 PCH Configuration	61
2.5.4 SATA Configuration	61
2.5.5 USB Configuration	62
2.5.6 Onboard Devices Configuration	62
2.5.7 APM	64
2.6 Monitor menu	65
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	65
2.6.2 CPU / Chassis Fan 1/2 Speed [xxxx RPM] or [Ignore] / [N/A]	65
2.6.3 CPU Q-Fan Control [Enabled]	65
2.6.4 Chassis Q-Fan Control [Enabled]	66
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	67
2.6.6 Anti Surge Support [Enabled]	67
2.7 Boot menu	68
2.7.1 Bootup NumLock State [On]	68
2.7.2 Full Screen Logo [Enabled]	68
2.7.3 Option ROM Messages [Force BIOS]	69
2.7.4 Setup Mode [EZ Mode]	69
2.7.5 Boot Option Priorities	69
2.7.6 Boot Override	69
2.8 Tools menu	70
2.8.1 ASUS EZ Flash 2 Utility	70
2.8.2 ASUS SPD Information	70
2.8.3 ASUS O.C. Profile	70