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1.2.4
Layout contents
Connectors/Jumpers/Slots/LED
1.
USB device wake-up (3-pin USBPW1-6, USBPW7-10) 1-15 8.
2.
Keyboard power (3-pin KBPWR)
3.
CPU and chassis fan connectors (4-pin CPU_FAN,
3-pin CHA_FAN)
4.
ATX power connectors (24-pin EATXPWR, 4-pin
ATX12V)
5.
AM3 CPU socket
6.
DDR3 DIMM slots
7.
SATA 3.0Gb/s connectors (7-pin SATA6G_1~4)
1.3
Central Processing Unit (CPU)
This motherboard comes with an AM3 socket designed for Phenom™ II / Athlon™ II /
Sempron™ 100 series processors.
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 fits in only one correct orientation. DO NOT
force the CPU into the socket to prevent bending the pins and damaging the CPU!
1.3.1
Installing the CPU
To install a CPU:
1.
Locate the CPU socket on the motherboard.
M4A78LT PLUS
M4A78LT PLUS CPU socket AM3
2.
Press the lever sideways to unlock the
socket, then lift it up to a 90°-100° angle.
Ensure that the socket lever is lifted up to a 90°-100°
angle; otherwise, the CPU will not fit in completely.
1-4
Page Connectors/Jumpers/Slots/LED
System panel connector (10-1 pin PANEL)
1-15 9.
Speaker connector (4-pin SPEAKER)
1-17 10. USB 2.0 connectors (10-1 pin USB78,
USB910)
1-18 11. Chassis intrusion connector (4-1 pin
CHASSIS)
1-4
12. Clear RTC RAM (3-pin CLRTC)
1-7
13. Front panel audio connector (10-1 pin AAFP) 1-17
1-19
Socket lever
Chapter 1: Product introduction
Page
1-20
1-19
1-21
1-21
1-14
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