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DRAM Driving Conﬁguration

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DRAM WRITE to READ Delay(SD) [Auto] Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK] DRAM WRITE to WRITE Timing [Auto] Configuration options: [Auto] [3 CLK] - [10 CLK] DRAM READ to READ Timing [Auto] Configuration options: [Auto] [3 CLK] - [10 CLK] DRAM REF Cycle Time [Auto] Configuration options: [Auto] [90ns] [110ns] [160ns] [300ns] [350ns] DRAM Refresh Rate [Auto] Configuration options: [Auto] [Every 7.8ms] [Every 3.9ms] DRAM Command Rate [Auto] Configuration options: [Auto] [1T] [2T] 3.5.10 DRAM Driving Configuration The configuration options for some of the following items vary depending on the DIMMs you install on the motherboard. CKE drive strength [Auto] Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x] CS/ODT drive strength [Auto] Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x] ADDR/CMD drive strength [Auto] Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x] MEMCLK drive strength [Auto] Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x] Data drive strength [Auto] Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x] DQS drive strength [Auto] Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x] Processor ODT [Auto] Configuration options: [Auto] [240 ohms +/- 20%] [120 ohms +/- 20%] [60 ohms +/- 20%] Some of the following items are adjusted by typing the desired values using the numeric keypad and press the key. You can also use the and keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the key. Chapter 3 ASUS M4A88TD-M/USB3 3-19

Section	Page
Notices	7
Safety information	8
About this guide	9
M4A88TD-M/USB3 specifications summary	11
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 ASUS Xtreme Design—Hybrid Processor*	17
1.3.3 ASUS Xtreme Design—Hybrid Switch*	17
1.3.4 ASUS Xtreme Design—Hybrid OS	17
1.3.5 ASUS unique 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	25
2.4 System memory	28
2.4.1 Overview	28
2.4.2 Memory configurations (AM3, 2-channel)	29
2.4.3 Installing a DIMM	34
2.4.4 Removing a DIMM	34
2.5 Expansion slots	35
2.5.1 Installing an expansion card	35
2.5.2 Configuring an expansion card	35
2.5.3 Interrupt assignments	36
2.5.4 PCI slot	37
2.5.5 PCI Express 2.0 x1 slots	37
2.5.6 PCI Express 2.0 x16 slot	37
2.6 Jumper	38
2.7 Onboard switches	39
2.8 Connectors	41
2.8.1 Rear panel connectors	41
2.8.2 Audio I/O connections	44
2.8.3 Internal connectors	46
2.8.4. ASUS Q-Connector (system panel)	53
2.9 Onboard LEDs	54
2.10 Starting up for the first time	56
2.11 Turning off the computer	56
Chapter 3: BIOS setup	57
3.1 Knowing BIOS	57
3.2 Updating BIOS	57
3.2.1 ASUS Update utility	58
3.2.2 ASUS EZ Flash 2 utility	60
3.2.3 ASUS CrashFree BIOS 3 utility	61
3.2.4 ASUS BIOS Updater	62
3.3 BIOS setup program	65
3.3.1 BIOS menu screen	65
3.3.2 Menu bar	65
3.3.3 Navigation keys	66
3.3.4 Menu items	66
3.3.5 Submenu items	66
3.3.6 Configuration fields	66
3.3.7 Pop-up window	66
3.3.8 Scroll bar	66
3.3.9 General help	66
3.4 Main menu	67
3.4.1 SATA 1~6	67
3.4.2 SATA Configuration	69
3.4.3 System Information	70
3.5 Ai Tweaker menu	71
3.5.1 CPU Level UP	71
3.5.2 CPU OverClocking	72
3.5.3 CPU Ratio	73
3.5.4 DRAM Frequency	73
3.5.5 CPU/NB Frequency	73
3.5.6 HT Link Speed	73
3.5.7 GPU Booster	73
3.5.8 OC Tuner Utility	74
3.5.9 DRAM Timing Configuration	74
3.5.10 DRAM Driving Configuration	75
3.5.11 CPU & NB Voltage Mode	76
3.5.12 CPU VDDA Voltage	76
3.5.13 DRAM Voltage	76
3.5.14 HT Voltage	76
3.5.15 NB Voltage	76
3.5.16 NB 1.8V Voltage	76
3.5.17 SB Voltage	76
3.5.18 CPU Load-Line Calibration	77
3.5.19 CPU/NB Load-Line Calibration	77
3.5.20 PCI/PCIe CLK Status	77
3.6 Advanced menu	77
3.6.1 CPU Configuration	77
3.6.2 Chipset	79
3.6.3 Onboard Devices Configuration	81
3.6.4 PCIPnP	82
3.6.5 USB Configuration	83
3.7 Power menu	84
3.7.1 Suspend Mode	84
3.7.2 ACPI 2.0 Support	84
3.7.3 ACPI APIC Support	84
3.7.4 APM Configuration	85
3.7.5 HW Monitor Configuration	86
3.7.6 Anti Surge Support	87
3.7.7 NB Thermal Protect	87
3.8 Boot menu	88
3.8.1 Boot Device Priority	88
3.8.2 Boot Settings Configuration	89
3.8.3 Security	90
3.9 Tools menu	92
3.9.1 ASUS EZ Flash 2	92
3.9.2 Express Gate	92
3.9.3 ASUS O.C. Profile	93
3.9.4 AI NET 2	94
3.10 Exit menu	95
Chapter 4: Software support	97
4.1 Installing an operating system	97
4.2 Support DVD information	97
4.2.1 Running the support DVD	97
4.2.2 Obtaining the software manuals	98
4.3 Software information	99
4.3.1 ASUS PC Probe II	99
4.3.2 Cool ‘n’ Quiet!™ Technology	100
4.3.3 ASUS AI Suite	101
4.3.4 ASUS Fan Xpert	102
4.3.5 ASUS EPU	103
4.3.6 ASUS Express Gate	104
4.3.7 Audio configurations	105
4.3.8 ASUS GPU Boost	106
4.4 ASUS Unique Overclocking Utility—TurboV EVO	107
4.4.1 Using ASUS TurboV	107
4.4.2 Using ASUS TurboV Auto Tuning Mode	108
4.4.3 Using CPU Level UP	109
4.4.4 Using ASUS Turbo Key	109
4.5 RAID configurations	110
4.5.1 RAID definitions	110
4.5.2 Installing Serial ATA hard disks	111
4.5.3 Setting the RAID item in BIOS	111
4.5.4 AMD® Option ROM Utility	112
4.6 Creating a RAID driver disk	115
4.6.1 Creating a RAID driver disk without entering the OS	115
4.6.2 Creating a RAID driver disk in Windows®	115
4.6.3 Installing the RAID driver during Windows® OS installation	115
4.6.4 Using a USB floppy disk drive	116