User Guide

1.5.3 Motherboard layout

1.5.4 Layout contents

Connectors/Jumpers/Slots Page

1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-22

2. CPU socket AM2+/AM2

1-7

3. CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1–2,

3-pin PWR_FAN)

1-21

4. DDR2 DIMM slots

1-10

5. Serial ATA connectors (7-pin SATA1-5)

1-24

6. IDE connector (40-1 pin PRI_IDE)

1-23

7. Onboard LED (SB_PWR)

1-4

8. Clear RTC RAM (CLRTC)

1-17

9. System panel connector (10-1 pin PANEL)

1-25

10. USB connectors (10-1 pin USB56, USB78, USB910)

1-26

11. Audio power connector (4-pin AUDIO_PWR)

1-26

12. Optical drive audio in connector (4-pin CD)

1-27

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

1-28

14. Digital audio connector (4-1 pin SPDIF_OUT)

1-27

1-6 ASUS M4A78-HTPC