Asus M4N72-E User Manual - Page 59

Chapter 2: BIOS setup

2-15

DCT0:CKE drive strength [Auto]

Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x]

DCT0:CS/ODT drive strength [Auto]


DCT0:Address/Command drive str [Auto]


DCT0:MEMCLK drive strength [Auto]

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

DCT0:Data drive strength [Auto]


DCT0:DQS drive strength [Auto]


DCT0:Processor on-die terminat [Auto]

Configuration options: [Auto] [300 ohms +/- 20%] [150 ohms +/- 20%] [75 ohms +/- 20%]

The following sub-items appear only when you set the

DCT0/DCT1 Strength Config

item

to [DCT 1] or [Both].

DCT1:CKE drive strength [Auto]


DCT1:CS/ODT drive strength [Auto]


DCT1:Address/Command drive strength. [Auto]


DCT1:MEMCLK drive strength [Auto]


DCT1:Data drive strength [Auto]


DCT1:DQS drive strength [Auto]


DCT1:Processor on-die termina [Auto]

Configuration options: [Auto] [300 ohms +/- 20%] [150 ohms +/- 20%] [75 ohms +/- 20%]

DQS Timing Configuration

This item appears only when you set the

AI Overclocking

item to [Manual] and allows you to

adjust the DQS values.

The following sub-items appear only when you set the

DQS Timing Configuration

item to

[DCT 0], [DCT 1], or [Both].

CKE Setup Time [Auto]

Allows selection of the CKE setup time.

Configuration options: [Auto] [1/2 CLK] [1 CLK]

Section	Page
Contents	3
Notices	6
Safety information	7
About this guide	7
M4N72-E 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 Innovative ASUS features	14
1.4 Before you proceed	16
1.5 Motherboard overview	17
1.5.1 Placement direction	17
1.5.2 Screw holes	17
1.5.3 Motherboard layout	18
1.5.4 Layout contents	18
1.6 Central Processing Unit (CPU)	19
1.6.1 Installing the CPU	19
1.6.2 Installing the heatsink and fan	20
1.7 System memory	22
1.7.1 Overview	22
1.7.2 Memory configurations	22
1.7.3 Installing a DIMM	27
1.7.4 Removing a DIMM	27
1.8 Expansion slots	28
1.8.1 Installing an expansion card	28
1.8.2 Configuring an expansion card	28
1.8.3 PCI slots	28
1.8.4 PCI Express x1 slots	28
1.8.5 PCI Express x16 slot	28
1.9 Jumpers	29
1.10 Connectors	32
1.10.1 Rear panel connectors	32
1.10.2 Internal connectors	34
1.11 Software support	44
1.11.1 Installing an operating system	44
1.11.2 Support DVD information	44
Chapter 2 BIOS information	45
2.1 Managing and updating your BIOS	45
2.1.1 Creating a bootable floppy disk	45
2.1.2 ASUS Update utility	46
2.1.3 ASUS EZ Flash 2 utility	47
2.1.4 AFUDOS utility	48
2.1.5 ASUS CrashFree BIOS 2 utility	49
2.2 BIOS setup program	50
2.2.1 BIOS menu screen	51
2.2.2 Menu bar	51
2.2.3 Navigation keys	52
2.2.4 Menu items	52
2.2.5 Submenu items	52
2.2.6 Configuration fields	52
2.2.7 General help	52
2.2.8 Pop-up window	52
2.2.9 Scroll bar	52
2.3 Main menu	53
2.3.1 System Time [xx:xx:xx]	53
2.3.2 System Date [Day xx/xx/xxxx]	53
2.3.3 Legacy Diskette A [1.44M, 3.5 in.]	53
2.3.4 Language [English]	53
2.3.5 Primary IDE Master/Slave	53
2.3.6 SATA 1–6	54
2.3.7 Storage Configuration	55
2.3.8 System Information	55
2.4 Ai Tweaker menu	56
2.4.1 AI Overclocking [Auto]	56
2.4.2 DRAM Frequency Control [Auto]	56
2.4.3 HT Link Speed [Auto]	57
2.4.4 CPU Voltage [Auto]	60
2.4.5 CPU/NB Voltage [Auto]	60
2.4.6 CPU VDDA Voltage [Auto]	60
2.4.7 DRAM Voltage [Auto]	60
2.4.8 HT Voltage [Auto]	60
2.4.9 NB Voltage [Auto]	60
2.4.10 NB 1.8V Voltage [Auto]	60
2.4.11 CPU/LDT Spread Spectrum [Disabled]	60
2.4.12 PCIE Spread Spectrum [Disabled]	60
2.4.13 SATA Spread Spectrum [Disabled]	61
2.4.14 PCI Spread Spectrum [Disabled]	61
2.5 Advanced menu	61
2.5.1 CPU Configuration	61
2.5.2 Chipset	62
2.5.3 Onboard Devices Configuration	63
2.5.4 PCIPnP	64
2.5.5 USB Configuration	64
2.6 Power menu	65
2.6.1 Suspend Mode [Auto]	65
2.6.2 Repost Video on S3 Resume [No]	65
2.6.3 ACPI 2.0 Support [Disabled]	65
2.6.4 ACPI APIC support [Enabled]	65
2.6.5 APM Configuration	66
2.6.6 Hardware Monitor	66
2.7 Boot menu	68
2.7.1 Boot Device Priority	68
2.7.2 Boot Settings Configuration	68
2.7.3 Security	69
2.8 Tools menu	70
2.8.1 ASUS EZ Flash 2	70
2.8.2 Express Gate [Enabled]	70
2.8.3 ASUS O.C. Profile	71
2.8.4 AI NET 2	71

Asus M4N72-E User Manual - Page 59

DQS Timing Conﬁguration

Page 59 highlights