Asus M4A78LT_LE Owner's Manual download pdf (Page 18)

1.5.4 Layout contents

1.6 Central Processing Unit (CPU)

This motherboard comes with an AM3 socket designed for Phenom™ II / Athlon™ II /

Sempron™ 100 series processors.

1.6.1 Installing the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

The AM3 socket has a different pinout from the AM2+/AM2 socket. Ensure that you use a

CPU designed for the AM3 socket. The CPU ts in only one correct orientation. DO NOT

force the CPU into the socket to prevent bending the pins and damaging the CPU!

M4A78LT Series

M4A78LT Series CPU socket AM3

Connectors/Jumpers/Slots Page Connectors/Jumpers/Slots Page

1. USB device wake-up (3-pin USBPW1-4,

USBPW5-10)

1-20 8. IDE connector (40-1 pin PRI_IDE) 1-24

2. ATX power connectors (24-pin EATXPWR, 4-pin

ATX12V)

1-23 9. Onboard LED 1-5

3. Keyboard power (3-pin KBPWR) 1-20 10. System panel connector (20-8 pin PANEL) 1-26

4. CPU and chassis fan connectors (4-pin

CPU_FAN, 3-pin CHA_FAN)

1-28 11. USB connectors (10-1 pin USB56, USB78,

USB910)

1-27

5. AMD CPU socket 1-8 12. Clear RTC RAM (CLRTC) 1-19

6. DDR3 DIMM sockets 1-11 13. Digital audio connector (4-1 pin SPDIF_OUT) 1-27

7. Serial ATA connectors (7-pin SATA1-6) 1-25 14. Front panel audio connector (10-1 pin AAFP) 1-22

Chapter 1: Product introduction1-8

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Asus M4A78LT_LE Owner's Manual Page 18