1.5.3
Motherboard layout
1.5.4
Layout contents
M4A78LT-M PLUS
PCIEX16
PCIEX1_1
PCI2
PCI1
PRI_IDE
USB56
USB910
USB78
SPDIF_OUT
AAFP
IC
S
9L
P
R
S
48
2
ATX12V
EATXPW
R
CPU_FAN
AMD
®
780L
Lithium Cell
CMOS Power
Super
I/O
VT1708S
AR
8131
8Mb
BIOS
SB_PWR
20.8cm(8.2in)
24.4cm(9.6in)
AMD
®
SB710
DDR3 DIMM_A1 (64bit, 240-pin module
)
DDR3 DIMM_B1 (64bit, 240-pin module
)
VG
A
SATA5
SATA3
SATA1
SATA6
SATA4
SATA2
USBPW1-4
KBPWR
CLRTC
USBPW5-10
SPEAKER
AUDIO
KBMS
LAN1_USB12
USB34
DV
I
F_PANEL
SOCKET AM3
CHA_FAN
LPT
COM1
4
5 6
7
4
9
1 2 3
8
14
13
17
15
16
2
10
12
11
Connectors/Jumpers/Slots
Page
Connectors/Jumpers/Slots
Page
1. Keyboard power (3-pin KBPWR)
1-19 10. Onboard LED (SB_PWR)
1-5
2. USB device wake-up (3-pin USBPW1-4,
USBPW5-10)
1-19 11. Speaker connector (4-pin SPEAKER)
1-27
3. Serial port connectors (10-1 pin COM1)
1-28 12. Serial ATA connectors (7-pin SATA1-6)
1-24
4. ATX power connectors (24-pin EATXPWR, 4-pin
ATX12V)
1-22 13. USB connectors (10-1 pin USB56, USB78,
USB910)
1-26
5. CPU and chassis fan connectors (4-pin
CPU_FAN and 3-pin CHA_FAN)
1-28 14. System panel connector (10-1 pin F_PANEL) 1-25
6. Clear RTC RAM (CLRTC)
1-18 15. LPT connector (26-1 pin LPT)
1-26
7. AMD CPU socket
1-8
16. Front panel audio connector (10-1 pin AAFP) 1-21
8. DDR3 DIMM sockets
1-11 17. Digital audio connector (4-1 pin SPDIF_OUT) 1-27
9. IDE connector (40-1 pin PRI_IDE)
1-23
ASUS M4A78LT-M PLUS
1-7