Asus M5A78L-M LX V2 User Manual - Page 49

ASUS M5A78L-M LX Series

2-11

VDDNB Over Voltage [Auto]

Sets the VDDNB over voltage. The valid value ranges vary depending on your CPU model.

Use <+> / <-> keys to adjust the ratio. Configuration options: [Auto]

LoadLine Calibration [Auto]

Sets the LoadLine. Configuration options: [Auto] [0%] [3.225%] [6.450%] [9.675%] [12.90%] ~

[87.075%] [90.3%] [93.525%] [96.75%] [100%]

If the system becomes unstable after changing the setting, set it back to [Auto] for safe

mode.

HT Link Speed [Auto]

Sets the HyperTransport link speed. Configuration options: [Auto] [200MHz] [400MHz]

[600MHz] [800MHZ] [1000MHz] [1200MHz] [1400MHz] [1600MHz] [1800MHz] [2000MHz]

HT Over Voltage [Auto]

Sets the HT over voltage. The values range from 1.20000V to 1.38000V with a 0.01000V

increment. Use the <+> / <-> keys to adjust the value. Configuration options: [Auto]

[Max. = 1.38000V] [Min. = 1.20000V]

DRAM Timing Config [Auto]

Configuration options: [Auto] [Manual]

DRAM Timing Configuration

The configuration options for some of the following items vary depending on the DIMMs you

install on the motherboard.

DRAM CAS# Latency [Auto]

Configuration options: [Auto] [4 CLK] ~ [12 CLK]

DRAM RAS# to CAS# Delay [Auto]


[5 CLK] ~ [12 CLK]

DRAM RAS# PRE Time [Auto]


[5 CLK] ~ [12 CLK]

DRAM RAS# ACT Time [Auto]


[15 CLK] ~ [30 CLK]

DRAM READ to PRE Time [Auto]

Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]

[4 CLK] [5 CLK] [6 CLK] [7 CLK]

DRAM Row Cycle Time [Auto]


The following items only appear when you set

DRAM Timing Config

to

[Manual]

.

Memory Clock Speed [400MHz]

Selects the memory clock frequency programming method.

Configuration options: [400MHz] [533MHz] [667MHz] [800MHz]

Section	Page
Notices	6
Safety information	7
About this guide	8
M5A78L-M LX Series specifications summary	9
Chapter 1	11
Product introduction	11
1.1 Welcome!	11
1.2 Package contents	11
1.3 Special features	11
1.3.1 Product highlights	11
1.3.2 Innovative ASUS features	13
1.4 Before you proceed	15
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	20
1.7 System memory	21
1.7.1 Overview	21
1.7.2 Memory configurations	22
1.7.3 Installing a DIMM	26
1.7.4 Removing a DIMM	26
1.8 Expansion slots	27
1.8.1 Installing an expansion card	27
1.8.2 Configuring an expansion card	27
1.8.3 PCI slot	27
1.8.4 PCI Express 2.0 x1 slots	27
1.8.5 PCI Express 2.0 x16 slot	27
1.9 Jumpers	28
1.10 Connectors	30
1.10.1 Rear panel ports	30
1.10.2 Internal connectors	31
1.11 Software support	37
1.11.1 Installing an operating system	37
1.11.2 Support DVD information	37
Chapter 2	39
BIOS information	39
2.1 Managing and updating your BIOS	39
2.1.1 ASUS Update utility	39
2.1.2 ASUS EZ Flash 2 utility	40
2.1.3 ASUS CrashFree BIOS 3	41
2.2 BIOS setup program	42
2.2.1 BIOS menu screen	43
2.2.2 Menu bar	43
2.2.3 Navigation keys	43
2.2.4 Menu items	44
2.2.5 Submenu items	44
2.2.6 Configuration fields	44
2.2.7 Pop-up window	44
2.2.8 Scroll bar	44
2.2.9 General help	44
2.3 Main menu	45
2.3.1 System Time [xx:xx:xx]	45
2.3.2 System Date [Day xx/xx/xxxx]	45
2.3.3 SATA3G_1~6	45
2.3.4 SATA Configuration	46
2.3.5 System Information	47
2.4 Advanced menu	47
2.4.1 JumperFree Configuration	48
2.4.2 CPU Configuration	50
2.4.3 Chipset	52
2.4.4 Onboard Devices Configuration	53
2.4.5 PCIPnP	54
2.4.6 USB Configuration	54
2.5 Power menu	55
2.5.1 Suspend Mode [Auto]	55
2.5.2 ACPI 2.0 Support [Enabled]	55
2.5.3 ACPI APIC Support [Enabled]	55
2.5.4 APM Configuration	55
2.5.5 HW Monitor Configuration	56
2.5.6 Anti Surge Support [Enabled]	56
2.6 Boot menu	57
2.6.1 Boot Device Priority	57
2.6.2 Boot Settings Configuration	57
2.6.3 Security	58
2.7 Tools menu	60
2.7.1 ASUS EZ Flash 2	60
2.7.2 ASUS O.C. Profile	60

Asus M5A78L-M LX V2 User Manual - Page 49

VDDNB Over Voltage [Auto], LoadLine Calibration [Auto], HT Link Speed [Auto], HT Over Voltage [Auto]

Page 49 highlights