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Asus SABERTOOTH X58 Sabertooth X58 user's manual - Page 29

Memory conﬁgurations - overclocking

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Chapter 2 2.4.2 Memory configurations You may install 1GB, 2GB and 4GB unbuffered and non‑ECC 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, DIMM voltage below 1.65V is recommended to protect the CPU. • 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 do any of the following: - Use a maximum of 3GB system memory if you are using a 32-bit Windows OS. - Install a 64-bit Windows OS when you want to install 4GB or more on the motherboard. For more details, refer to the Microsoft® support site at http://support.microsoft.com/kb/929605/en-us. • This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less (Memory chip capacity counts in Megabit, 8 Megabit/Mb = 1 Megabyte/MB). • The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. To operate at the vendor-marked or at a higher frequency, refer to section 3.5 Ai Tweaker menu for manual memory frequency adjustment. • For system stability, use a more efficient memory cooling system to support a full memory load (6 DIMMs) or overclocking condition. ASUS SABERTOOTH X58 2-11

Section	Page
Contents	3
Notices	8
Safety information	9
About this guide	10
SABERTOOTH X58 specifications summary	12
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 “TUF ENGINE!” Power Design	17
1.3.3 “Ultimate COOL!” Thermal Solutions	17
1.3.4 “Safe & Stable!” Guardian Angel	17
1.3.5 ASUS exclusive 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	26
2.3.3 Uninstalling the CPU heatsink and fan	27
2.4 System memory	28
2.4.1 Overview	28
2.4.2 Memory configurations	29
2.4.3 Installing a DIMM	35
2.4.4 Removing a DIMM	35
2.5 Expansion slots	36
2.5.1 Installing an expansion card	36
2.5.2 Configuring an expansion card	36
2.5.3 Interrupt assignments	37
2.5.4 PCI slot	38
2.5.5 PCI Express x16 / x1 slots	38
2.5.6 PCI Express 2.0 x16 slots	38
2.6 Jumpers	40
2.7 Onboard switch	42
2.8 Connectors	43
2.8.1 Rear panel connectors	43
2.8.2 Audio I/O connections	44
2.8.3 Internal connectors	47
2.8.4. ASUS Q-Connector (system panel)	55
2.9 Onboard LEDs	56
2.10 Starting up for the first time	57
2.11 Turning off the computer	57
Chapter 3: BIOS setup	59
3.1 Knowing BIOS	59
3.2 Updating BIOS	59
3.2.1 ASUS Update utility	60
3.2.2 ASUS EZ Flash 2 utility	62
3.2.3 ASUS CrashFree BIOS 3 utility	63
3.3 BIOS setup program	64
3.3.1 BIOS menu screen	64
3.3.2 Menu bar	64
3.3.3 Navigation keys	65
3.3.4 Menu items	65
3.3.5 Submenu items	65
3.3.6 Configuration fields	65
3.3.7 Pop-up window	65
3.3.8 Scroll bar	65
3.3.9 General help	65
3.4 Main menu	66
3.4.1 SATA 1–6	66
3.4.2 Storage Configuration	68
3.4.3 AHCI Configuration	69
3.4.4 System Information	69
3.5 Ai Tweaker menu	70
3.5.1 Ai Overclock Tuner [Auto]	70
3.5.2 CPU Ratio Setting [Auto]	71
3.5.3 Intel(R) SpeedStep(TM) Tech [Enabled]	71
3.5.4 Intel(R) TurboMode Tech [Enabled]	71
3.5.5 Xtreme Phase Full Power Mode [Auto]	71
3.5.6 BCLK Frequency [XXX]	71
3.5.7 PCIE Frequency [XXX]	72
3.5.8 DRAM Frequency [Auto]	72
3.5.9 UCLK Frequency [XXX]	72
3.5.10 QPI Link Data Rate [Auto]	72
3.5.11 ASUS/3rd Party UI Priority [ASUS Utility]	72
3.5.12 DRAM Timing Control [Auto]	72
3.5.13 CPU Voltage Control [Manual]	74
3.5.14 CPU Voltage [Auto]	74
3.5.15 CPU PLL Voltage [Auto]	74
3.5.16 QPI/DRAM Core Voltage [Auto]	74
3.5.17 IOH Voltage [Auto]	75
3.5.18 IOH PCIE Voltage [Auto]	75
3.5.19 ICH Voltage [Auto]	75
3.5.20 ICH PCIE Voltage [Auto]	75
3.5.21 DRAM Bus Voltage [Auto]	75
3.5.22 DRAM DATA REF Voltage on CHA/B/C [Auto]	76
3.5.23 DRAM CTRL REF Voltage on CHA/B/C [Auto]	76
3.5.24 Load-Line Calibration [Auto]	76
3.5.25 CPU Differential Amplitude [Auto]	76
3.5.26 CPU Clock Skew [Auto]	76
3.5.27 CPU Spread Spectrum [Auto]	76
3.5.28 IOH Clock Skew [Auto]	76
3.5.29 PCIE Spread Spectrum [Auto]	76
3.6 Advanced menu	77
3.6.1 CPU Configuration	77
3.6.2 Chipset	80
3.6.3 Onboard Devices Configuration	81
3.6.4 USB Configuration	83
3.6.5 PCIPnP	84
3.7 Power menu	85
3.7.1 Suspend Mode [Auto]	85
3.7.2 Repost Video on S3 Resume [No]	85
3.7.3 ACPI 2.0 Support [Disabled]	85
3.7.4 ACPI APIC Support [Enabled]	85
3.7.5 APM Configuration	86
3.7.6 Hardware Monitor	87
3.7.7 EuP Ready [Disabled]	88
3.8 Boot menu	89
3.8.1 Boot Device Priority	89
3.8.2 Boot Settings Configuration	90
3.8.3 Security	91
3.9 Tools menu	93
3.9.1 ASUS EZ Flash 2	93
3.9.2 ASUS O.C. Profile	93
3.9.3 AI NET 2	95
3.9.4 Drive Xpert Configuration	95
3.10 Exit menu	97
Chapter 4: Software support	99
4.1 Installing an operating system	99
4.2 Support DVD information	99
4.2.1 Running the support DVD	99
4.2.2 Obtaining the software manuals	100
4.3 Software information	101
4.3.1 ASUS PC Probe II	101
4.3.2 ASUS Fan Xpert	102
4.3.3 Audio configurations	103
4.4 RAID configurations	104
4.4.1 RAID definitions	104
4.4.2 Installing Serial ATA hard disks	105
4.4.3 Setting the RAID item in BIOS	105
4.4.4 Intel® Matrix Storage Manager option ROM utility	105
4.4.5 Marvell RAID utility	109
4.5 Creating a RAID driver disk	113
4.5.1 Creating a RAID driver disk without entering the OS	113
4.5.2 Creating a RAID driver disk in Windows®	113
4.5.3 Installing the RAID driver during Windows® OS installation	114
4.5.4 Using a USB floppy disk drive	115
Chapter 5: Multiple GPU technology support	117
5.1 ATI® CrossFireX™ technology	117
5.1.1 Requirements	117
5.1.2 Before you begin	117
5.1.3 Installing two CrossFireX™ graphics cards	118
5.1.4 Installing three CrossFireX™ graphics cards	119
5.1.5 Installing the device drivers	120
5.1.6 Enabling the ATI® CrossFireX™ technology	120
5.2 NVIDIA® SLI™ technology	122
5.2.1 Requirements	122
5.2.2 Installing two SLI-ready graphics cards	122
5.2.3 Installing the device drivers	123