Asus M4A87TD EVO User Manual - Page 60

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ASUS M4A87TD EVO

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]

110ns] [160ns] [300ns] [350ns]

] [160ns] [300ns] [350ns]

[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]

2.5.9

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]


ADDR/CMD drive strength [Auto]


MEMCLK drive strength [Auto]

Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x]

Data drive strength [Auto]


DQS drive strength [Auto]


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 <Enter> 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 <Enter>

key.

2.5.10

CPU & NB Voltage Mode [Offset]

Allows you to set the CPU & CPU/NB Voltage Mode. Different sub-items appear according to

the

CPU & NB Voltage Mode

item setting. Configuration options: [Offset] [Manual]

CPU Offset Voltage [Auto]

This item appears only when you set the

CPU & NB Voltage Mode

item to [Offset]

and allows you to set the CPU Offset voltage. The values range from 0.003125V to

0.700000V with a 0.003125V interval.

Section	Page
M4A87TD EVO specifications summary	9
Chapter 1 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 ASUS Unique Features	14
1.4 Before you proceed	16
1.5 Motherboard overview	16
1.5.1 Placement direction	16
1.5.2 Screw holes	16
1.5.3 Motherboard layout	17
1.5.4 Layout contents	17
1.6 Central Processing Unit (CPU)	18
1.6.1 Installing the CPU	18
1.6.2 Installing the heatsink and fan	19
1.7 System memory	21
1.7.1 Overview	21
1.7.2 Memory configurations	21
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 2.0 x1 slots	29
1.8.5 PCI Express 2.0 x16 slots	29
1.9 Jumper	30
1.10 Onboard switches	31
1.11 Onboard LEDs	33
1.12 Connectors	35
1.12.1 Rear panel connectors	35
1.12.2 Internal connectors	37
1.13 Software support	45
1.13.1 Installing an operating system	45
1.13.2 Support DVD information	45
Chapter 2 BIOS information	47
2.1 Knowing BIOS	47
2.2 Updating BIOS	47
2.2.1 ASUS Update utility	48
2.2.2 ASUS EZ Flash 2 utility	49
2.2.3 ASUS CrashFree BIOS 3 utility	50
2.3 BIOS setup program	51
2.3.1 BIOS menu screen	52
2.3.2 Menu bar	52
2.3.3 Navigation keys	53
2.3.4 Menu items	53
2.3.5 Submenu items	53
2.3.6 Configuration fields	53
2.3.7 General help	53
2.3.8 Pop-up window	53
2.3.9 Scroll bar	53
2.4 Main menu	54
2.4.1 SATA 1–6	54
2.4.2 Storage Configuration	55
2.4.3 System Information	56
2.5 Ai Tweaker menu	57
2.5.1 CPU Level UP [Auto]	57
2.5.2 OC Tuner Utility	57
2.5.3 Ai Overclock Tuner [Auto]	57
2.5.4 CPU Ratio [Auto]	58
2.5.5 DRAM Frequency [Auto]	58
2.5.6 CPU/NB Frequency [Auto]	59
2.5.7 HT Link Speed [Auto]	59
2.5.8 DRAM Timing Configuration	59
2.5.9 DRAM Driving Configuration	60
2.5.10 CPU & NB Voltage Mode [Offset]	60
2.5.11 CPU VDDA Voltage [Auto]	61
2.5.12 DRAM Voltage [Auto]	61
2.5.13 HT Voltage [Auto]	61
2.5.14 NB Voltage [Auto]	61
2.5.15 CPU Load-Line Calibration [Auto]	61
2.5.16 CPU/NB Load-Line Calibration [Auto]	61
2.5.17 CPU Spread Spectrum [Auto]	61
2.5.18 PCIE Spread Spectrum [Auto]	61
2.6 Advanced menu	62
2.6.1 CPU Configuration	62
2.6.2 Chipset	63
2.6.3 Onboard Devices Configuration	63
2.6.4 USB Configuration	64
2.6.5 PCIPnP	65
2.7 Power menu	66
2.7.1 Suspend Mode [Auto]	66
2.7.2 Repost Video on S3 Resume [No]	66
2.7.3 ACPI 2.0 Support [Enabled]	66
2.7.4 ACPI APIC support [Enabled]	66
2.7.5 APM Configuration	67
2.7.6 Hardware Monitor	67
2.8 Boot menu	69
2.8.1 Boot Device Priority	69
2.8.2 Boot Settings Configuration	69
2.8.3 Security	70
2.9 Tools menu	71
2.9.1 ASUS EZ Flash 2	71
2.9.2 Express Gate [Auto]	71
2.9.3 ASUS O.C. Profile	72
2.9.4 AI NET 2	72

Asus M4A87TD EVO User Manual - Page 60

DRAM Driving Conﬁguration

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