Asus M3A78 - Motherboard Layout; Layout Contents

1.5.3 Motherboard layout
1.5.4 Layout contents
Super I/O
SATA4 SATA5 SATA6
SATA1 SATA2 SATA3
SocketAM2+
CPU_FAN
E
A
TXPWR
PANEL
USB78USB910
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
FLOPP
Y
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
1314
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