User manual

ASMB-781 User Manual 4
 Board size: 304.8 x 228.6 mm (12" x 9.6")
 Board weight: 0.5 kg (1.68 lb)
1.4 Jumpers and Connectors
Connectors on the ASMB-781 motherboard link it to external devices such as hard
disk drives and a keyboard. In addition, the board has a number of jumpers that are
used to configure your system for your application.
The tables below list the function of each of the jumpers and connectors. Later sec-
tions in this chapter give instructions on setting jumpers. Chapter 2 gives instructions
for connecting external devices to your motherboard.
Table 1.1: Jumper list
Label Function
JCMOS1 CMOS clear
JMECLR1 ME clear
JME1 ME update
JWDT1 Watch dog selection
JGREEN1 Deep sleep Sx mode
JUSB_1,JUSB_2 USB/KBMS normal(2-3)/standby power selection(1-2)
CPUFAN_SEL1,
SYSFAN_SEL1
FAN PWM(1-2)/DC mode selection(2-3)
PSON1 AT(1-2) / ATX(2-3)
JCFG1 PCI-E port (slot 6) assign to 1 x 16 link (Default) or 2 x 8 link for
riser card use
Table 1.2: Connector list
Label Function
ATX24P_P1 ATX 24 Pin main power connector (for System)
ATX8P_P1 Processor power connector (for CPU)
SATA1~SATA6 Serial ATA1~6
USB56,USB78,USB910 USB port 5,6,7,8,9,10 (Header)
USB11,USB12 USB port 11,12(USB type A)
PCI1,PCI2,PCI5 PCI slot
PCIE3 PCIE x4 slot
PCIE4,PCIE6 PCIE x16 slot
PCIE7 PCIE x1 slot
DIMMA0,DIMMA1,DIM
MB0,DIMMB1
DDR3 slot
CPUFAN1 CPU FAN connector
SYSFAN1,SYSFAN2,S
YSFAN3,SYSFAN4
System FAN connector
LAN1_USB12,LAN2_U
SB34
LAN1 / USB port 1, 2 stack connector
LAN2 / USB port 3, 4 stack connector
LAN3_4 LAN 3,4 stack connector
VGA_COM1 VGA+COM connector
KBMS1 PS/2 keyboard and mouse connector
KBMS2 External keyboard and mouse connector(6 pin)