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1.6
ASMB-781 Block Diagram
PCIE X16 SLOT-6
PCIe x16 Gen 2. 0
PCIE X16 SLOT-4
PCIe x8Gen 2.0
PCIE X4 SLOT-3
PCIE X1 SLOT-7
PCI 1,2,5
SPI BIOS
64M-bit
LPC Conn.
1.7
Safety Precautions
Warning! Always completely disconnect the power cord from your chassis when-
ever you work with the hardware. Do not make connections while the
power is on. Sensitive electronic components can be damaged by sud-
den power surges. Only experienced electronics personnel should open
the PC chassis.
Caution! Always ground yourself to remove any static charge before touching the
motherboard. Modern electronic devices are very sensitive to static
electric discharges. As a safety precaution, use a grounding wrist strap
at all times. Place all electronic components on a static-dissipative sur-
face or in a static-shielded bag when they are not in the chassis.
Caution! The computer is provided with a battery-powered real-time clock circuit.
There is a danger of explosion if battery is incorrectly replaced. Replace
only with same or equivalent type recommended by the manufacturer.
Discard used batteries according to manufacturer's instructions.
X8
CPU
X8
Sandy Bridge
LGA1155
X8
X8
switch
DMI
PCIex1 Lane0~3
Gen 2.0
PCIex1 Lane6
Cougar Point
Gen 2.0
Platform Cntroller Hub
PCH FCBGA-942
C206
33MHz PCI
LPC bus
Super I/O
NCT677 6F
Figure 1.3 ASMB-781 Block Diagram
DDR3 240 PIN CHA
1066/1333 Non-ECC
X2
DDR3 240 PIN CHB
1066/1333 Non-ECC
X2
Intel 82580D B
PCIe x4
GbE PHY
Intel82579LM
PCIe x1 Lane4
GbE PHY
PCIe x1 Lane-5
Intel 82574L
13 USB port
(4*rear; 6*onboard ; 2*type-A)
USB 2.0
(1*AST2300)
600MB/s
SATA 1 ~ 2
S/W RAID 0, 1, 10,5
300MB/s
SATA 3~6
PCIE bus
ASPEED
AST2300
PS/2 KB, MS
CASE OPEN
LPT
5 x FAN
2 x COM port
7
Dual RJ45
RJ45
RJ45
RMII
VGA
ASMB-781 User Manual
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