1.5.4 Layout contents Asus prime Asus M3A78

Page: 17 from 58

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1.5.3 

Motherboard layout

1.5.4 

Layout contents

Super I/O

SATA4 SATA5 SATA6

SATA1 SATA2 SATA3

SocketAM2+

CPU_FAN

EA

TXPW

R

PANEL

USB78

USB910

USB1112

AAFP

SB_PWR

8Mb

 BIOS

AMD 770

SB700

DDR2 DIMM_A1 (64 bit,240-pin module)

DDR2 DIMM_B1 (64 bit,240-pin module)

DDR2 DIMM_A2 (64 bit,240-pin module)

DDR2 DIMM_B2 (64 bit,240-pin module)

CR2032 3V

Lithium Cell

CMOS Power

PCI2

PCI3

PCI1

PCIEX16

PCIEX1_2

PCIEX1_1

CLRTC

ATX12V

R

SPDIF_OUT

M3A78

FLOPPY

CD

30.5cm (12in

)

VIA

VT1708B

PRI_IDE

24.4cm(9.6in)

KB_USB56

PWR_FAN

CHA_FAN

RTL

8111C

RTM

880T-792

AUDIO

LAN1_USB12

USB34

SPDOF_O

1

2

3

4

1

5

8

9

10

6

15

16

7

12

13

14

11

Connectors/Jumpers/Slots

Page Connectors/Jumpers/Slots

Page

1.

ATX power connectors  

(24-pin EATXPWR, 4-pin ATX12V) 

1-21 10. Clear RTC RAM (CLRTC)

1-17

2.

AM2/AM2+ CPU socket

1-8

10. System panel connector (20-8 pin PANEL)

1-23

3.

Chassis fan connector (3-pin CHA_FAN)

1-9

11. USB connectors (10-1 pin USB78, USB910, 

USB1112)

1-24

4.

DDR2 DIMM slots

1-11

12. Floppy disk drive connector (34-1 pin FLOPPY) 1-19

5.

Power fan connector (3-pin PWR_FAN)

1-24 13. Digital audio connector (4-1 pin SPDIF_OUT)

1-23

6.

Serial ATA connectors (7-pin SATA1-6)

1-22 14. Front panel audio connector (10-1 pin AAFP)

1-25

7.

Onboard LED

1-5

15. Optical drive audio connector (4-pin CD)

1-22

8.

IDE connector (40-1 pin PRI_IDE)

1-20 16. CPU fan connector (4-pin CPU_FAN)

1-9

Chapter 1: Product introduction

1-7