Asus M4A78LT PLUS User Manual - Page 27

1.

CPU and chassis connectors (4-pin CPU_FAN; 3-pin CHA_FAN)

Connect the fan cables to the fan connectors on the motherboard, ensuring that the

black wire of each cable matches the ground pin of the connector.

Only the 4-pin CPU fan supports the ASUS Q-Fan feature.

DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside

the system may damage the motherboard components. These are not jumpers! DO NOT

place jumper caps on the fan connectors.

1.7.2

Internal connectors

M4A78LT PLUS

M4A78LT PLUS fan connectors

GND

+12V

Rotation

CHA_FAN

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

•

We recommend that you connect a high-definition front panel audio module to this

connector to avail of the motherboard high-definition audio capability.

•

If you want to connect a high definition front panel audio module to this connector, set

the

Front Panel Select

item in the BIOS to

[HD Audio]

. See section

2.4.3 Onboard

Devices Configuration

for details.

•

The front panel audio I/O module is purchased separately.

2.

Front panel audio connector (10-1 pin AAFP)

This connector is for a chassis-mounted front panel audio I/O module that supports

either High Definition Audio or AC`97 audio standard. Connect one end of the front

panel audio I/O module cable to this connector.

M4A78LT PLUS

M4A78LT PLUS Front panel audio connector

AAFP

PIN 1

SENSE2_RETUR

SENSE1_RETUR

PRESENCE#

GND

PORT2 L

SENSE_SEND

PORT2 R

PORT1 R

PORT1 L

HD-audio-compliant

pin definition

PIN 1

NC

NC

NC

AGND

Line out_L

NC

Line out_R

MICPWR

MIC2

Legacy AC’97

compliant definition

ASUS M4A78LT PLUS

1-17

Section	Page
Notices	6
Safety information	7
About this guide	8
M4A78LT PLUS specifications summary	9
Chapter 1	11
Product introduction	11
1.1 Before you proceed	11
1.2 Motherboard overview	12
1.2.1 Placement direction	12
1.2.2 Screw holes	12
1.2.3 Motherboard layout	13
1.2.4 Layout contents	14
1.3 Central Processing Unit (CPU)	14
1.3.1 Installing the CPU	14
1.3.2 Installing the heatsink and fan	16
1.4 System memory	17
1.4.1 Overview	17
1.4.2 Memory configurations	18
1.4.3 Installing a DIMM	21
1.4.4 Removing a DIMM	22
1.5 Expansion slots	23
1.5.1 Installing an expansion card	23
1.5.2 Configuring an expansion card	23
1.5.3 PCI slot	23
1.5.4 PCI Express x1 slot	23
1.5.5 PCI Express x16 slot	23
1.6 Jumpers	24
1.7 Connectors	26
1.7.1 Rear panel ports	26
1.7.2 Internal connectors	27
1.8 Software support	32
1.8.1 Installing an operating system	32
1.8.2 Support DVD information	32
Chapter 2	33
BIOS information	33
2.1 Managing and updating your BIOS	33
2.1.1 ASUS Update utility	33
2.1.2 ASUS EZ Flash 2	34
2.1.3 ASUS CrashFree BIOS 3	35
2.1.4 ASUS BIOS Updater	36
2.2 BIOS setup program	39
2.2.1 BIOS menu screen	40
2.2.2 Menu bar	40
2.2.3 Navigation keys	40
2.2.4 Menu items	41
2.2.5 Submenu items	41
2.2.6 Configuration fields	41
2.2.7 Pop-up window	41
2.2.8 Scroll bar	41
2.2.9 General help	41
2.3 Main menu	42
2.3.1 System Time [xx:xx:xx]	42
2.3.2 System Date [Day xx/xx/xxxx]	42
2.3.3 SATA 1~4	42
2.3.4 SATA Configuration	43
2.3.5 System Information	44
2.4 Advanced menu	45
2.4.1 CPU Configuration	45
2.4.2 Chipset	46
2.4.3 Onboard Devices Configuration	46
2.4.4 PCIPnP	47
2.4.5 USB Configuration	47
2.5 Power menu	48
2.5.1 Suspend Mode [Auto]	48
2.5.2 ACPI 2.0 Support [Enabled]	48
2.5.3 ACPI APIC Support [Enabled]	49
2.5.4 APM Configuration	49
2.5.5 HW Monitor Configuration	49
2.5.6 EuP Ready [Disabled]	50
2.6 Boot menu	50
2.6.1 Boot Device Priority	51
2.6.2 Boot Settings Configuration	51
2.6.3 Security	51
2.7 Tools menu	53
2.7.1 ASUS EZ Flash 2	53
2.7.2 ASUS O.C. Profile	53

Asus M4A78LT PLUS User Manual - Page 27

Internal connectors

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