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Asus P6T WS Professional User Guide - Page 38

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2.4.2 Memory configurations You may install 1GB and 2GB non‑ECC, unbuffered DDR3 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A, Channel B and Channel C. The system maps the total size of the lower-sized channel for the dual-channel or triple-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Due to Intel spec definition, X.M.P. DIMMs and DDR3-1600 are supported for one DIMM per channel only. • According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may damage the CPU permanently. We recommend you install the DIMMs with the voltage requirement below 1.65V. • Always install DIMMs with the same CAS latency. For optimum compatibility, we recommend that you obtain memory modules from the same vendor. • Due to the memory address limitation on 32-bit Windows OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you install a 64-bit Windows OS when having 4GB or more memory installed on the motherboard. • This motherboard does not support memory modules made up of 128 Mb chips. • The default memory operation frequency is dependent on its SPD. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. • For system stability, use a more efficient memory cooling system to support a full memory load (6 DIMMs) or overclocking condition. 2-12 Chapter 2: Hardware information

Section	Page
Contents	3
Notices	8
Safety information	9
About this guide	10
P6T WS Professional 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
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	39
2.4.4 Removing a DIMM	39
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 slot	45
2.5.5 PCI-X slots	45
2.5.6 PCI Express x1 slot	45
2.5.7 PCI Express 2.0 x16 slots	45
2.6 Jumpers	47
2.7 Connectors	50
2.7.1 Rear panel connectors	50
2.7.2 Internal connectors	52
2.8 G.P. Diagnosis card installation	63
2.8.1 G.P. Diagnosis card layout	63
2.8.2 Installing G.P. Diagnosis card	63
2.8.3 G.P. Diagnosis card check codes	64
2.9 Starting up for the first time	65
2.10 Turning off the computer	66
2.10.1 Using the OS shut down function	66
2.10.2 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 Creating a bootable floppy disk	73
3.1.4 AFUDOS utility	74
3.1.5 ASUS CrashFree BIOS 3 utility	76
3.2 BIOS setup program	77
3.2.1 BIOS menu screen	78
3.2.2 Menu bar	78
3.2.3 Navigation keys	78
3.2.4 Menu items	79
3.2.5 Sub-menu items	79
3.2.6 Configuration fields	79
3.2.7 Pop-up window	79
3.2.8 Scroll bar	79
3.2.9 General help	79
3.3 Main menu	80
3.3.1 System Time [xx:xx:xx]	80
3.3.2 System Date [Day xx/xx/xxxx]	80
3.3.3 Language [English]	80
3.3.4 SATA 1-6	81
3.3.5 Storage Configuration	82
3.3.6 AHCI Configuration	83
3.3.7 System Information	84
3.4 Ai Tweaker menu	85
3.4.1 Ai Overclock Tuner [Auto]	85
3.4.2 CPU Ratio Setting [Auto]	86
3.4.3 Intel(R) SpeedStep(TM) Tech [Enabled]	86
3.4.4 Intel(R) Turbo Mode Tech [Enabled]	86
3.4.5 DRAM Frequency [Auto]	87
3.4.6. DRAM Timing Control [Auto]	87
3.4.7 CPU Voltage [Auto]	89
3.4.8 CPU PLL Voltage [Auto]	89
3.4.9 QPI/DRAM Core Voltage [Auto]	89
3.4.10 IOH Voltage [Auto]	90
3.4.11 IOH PCIE Voltage [Auto]	90
3.4.12 ICH Voltage [Auto]	90
3.4.13 ICH PCIE Voltage [Auto]	90
3.4.14 DRAM Bus Voltage [Auto]	90
3.4.15 DRAM DATA REF Voltage on CHA/B/C [Auto]	91
3.4.16 DRAM CTRL REF Voltage on CHA/B/C [Auto]	91
3.4.17 Load-Line Calibration [Auto]	91
3.4.18 CPU Differential Amplitude [Auto]	91
3.4.19 CPU Clock Skew [Auto]	91
3.4.20 CPU Spread Spectrum [Auto]	92
3.4.21 IOH Clock Skew [Auto]	92
3.4.22 PCIE Spread Spectrum [Auto]	92
3.5 Advanced menu	93
3.5.1 CPU Configuration	93
3.5.2 Chipset	96
3.5.3 Onboard Device Configuration	97
3.5.4 USB Configuration	98
3.5.5 PCIPnP	99
3.6 Power menu	100
3.6.1 Suspend Mode [Auto]	100
3.6.2 Repost Video on S3 Resume [No]	100
3.6.3 ACPI 2.0 Support [Disabled]	100
3.6.4 ACPI APIC Support [Enabled]	100
3.6.5 APM Configuration	101
3.6.6 Hardware Monitor	102
3.7 Boot menu	104
3.7.1 Boot Device Priority	104
3.7.2 Boot Settings Configuration	105
3.7.3 Security	106
3.8 Tools menu	108
3.8.1 ASUS EZ Flash 2	108
3.8.2 Express Gate [Enabled]	109
3.8.3 ASUS O.C. Profile	110
3.8.4 Ai Net 2	111
3.9 Exit menu	112
Chapter 4: Software support	113
4.1 Installing an operating system	115
4.2 Support DVD information	115
4.2.1 Running the support DVD	115
4.2.2 Drivers menu	116
4.2.3 Utilities menu	118
4.2.4 Make disk menu	120
4.2.5 Manual menu	121
4.2.6 ASUS Contact information	121
4.2.7 Other information	122
4.3 Software information	124
4.3.1 ASUS MyLogo 2™	124
4.3.2 ASUS PC Probe II	126
4.3.3 ASUS AI Suite	132
4.3.4 ASUS AI Nap	134
4.3.5 ASUS Fan Xpert	135
4.3.6 ASUS EPU–6 Engine	137
4.3.7 ASUS TurboV	141
4.3.8 SoundMAX® High Definition Audio utility	143
4.3.9 ASUS Express Gate	149
4.3.10 Realtek Teaming Utility	158
4.4 RAID configurations	162
4.4.1 RAID definitions	162
4.4.2 Installing Serial ATA hard disks	163
4.4.3 Intel® RAID configurations	163
4.4.4 Marvell® SAS RAID configurations	171
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
Chapter 5: Multiple GPU technology support	183
5.1 ATI® CrossFireX™ technology	185
5.1.1 Requirements	185
5.1.2 Before you begin	185
5.2 Installing CrossFireX™ graphics cards	186
5.2.1 CrossFireX installation	186
5.3 Software information	188
5.3.1 Installing the device drivers	188
5.3.2 Enabling the ATI® CrossFireX™ technology	188
5.4 NVIDIA® SLI™ Technology	190
5.4.1 Requirements	190
5.4.2 Installing SLI™ graphics cards	190
5.4.3 Installing the device drivers	191