1.5.3 Motherboard layout
1.5.4 Layout contents
M4A78 PLUS
PCIEX16_1
PCIEX16_2
PCIEX1_1
PCI3
PCI2
PCI1
USBE34 USB910USBE12
SPDIF_OUT
AAFP
CD
ATX12V
EATXPWR
CPU_FAN
PWR_FAN
CHA_FAN
Lithium Cell
CMOS Power
Super
I/O
ALC
887
Realtek
8112
ICS
9LPRS485
KBMS
SPDIF_O
USB34
USB56
USB78
8Mb
BIOS
SB_PWR
PANEL
CLRTC
22.4cm(8.8in)
DDR2 DIMM_A1 (64bit, 240-pin module)
SOCKET 940
DDR2 DIMM_B1 (64bit, 240-pin module)
DDR2 DIMM_A2 (64bit, 240-pin module)
DDR2 DIMM_B2 (64bit, 240-pin module)
SATA5
SATA3
SATA2
SATA1
SATA6
AUDIO
LAN1_USB12
ESATA_
USB11
30.5cm(12.0in)
PRI_IDE
AMD
®
SB700
AMD
®
770
LPT
COM1
1 3 22
1
4
91012 11131415
5
6
7
8
Connectors/Jumpers/Slots Page Connectors/Jumpers/Slots Page
1. ATX power connectors
(24-pin EATXPWR, 4-pin ATX12V)
1-23 9. System panel connector (20-8 pin F_PANEL) 1-26
2. CPU/Chassis/Power fan connectors (4-pin
CPU_FAN, 3-pin CHA_FAN, 3-pin PWR_FAN)
1-29 10. USB connectors (10-1 pin USB12, USB34,
USB910)
1-27
3. AMD CPU socket 940 1-8 11. LPT connector (26-1 pin LPT connector) 1-28
4. DDR2 DIMM slots 1-11 12. Digital audio connector (4-1 pin SPDIF_OUT) 1-28
5. Serial ATA connectors (7-pin SATA1, 2, 3,
5, 6)
1-25 13. Optical drive audio in connector (4-pin CD) 1-28
6. IDE connector (40-1 pin PRI_EIDE) 1-24 14. Front panel audio connector (10-1 pin AAFP) 1-29
7. Onboard LED 1-5 15. Serial port connector (10-1 pin COM1) 1-27
8. Clear RTC RAM (3-pin CLRTC) 1-20
1-8 ASUS M4A78 PLUS