8
System Components
Chapter 2
Embedded and Industrial Computing
Block Diagram
The block diagram depicts the relationships among the
interfaces and modules on the motherboard..
PCH
HM65
Processor
Intel
Sandy Bridge series
(BGA)
DM
I2
x4
DDR3 1066/1333/1600
2x SO-DIMM up to 16GB
Fintek
F81865F
H/W Monitor
WDT
RS-232/422/485
2x DB-9
P/S2 KB/MS
Pin Header
SATA Port 0
SATA Port 1
USB
Flash BIOS
SPI
Mini PCI Express
2x Socket
Wifi Card
GbE LAN
Intel 82574L
2x PCIe
2x RJ-45
USB 2.0
4x Port-A (front I/O)
2x Port-A (rear I/O)
2x Pin Header
SATA Connector
2x 6 Gbps
PCIe x2
USB x2
VGA
Up to 2048x1536
DVI-D
Up to 1920x1200
Port C
HDMI
Up to 1920x1200
Port D
3G Card +
SIM Card Reader
LP
C
PCIe Expansion
For Riser Board (pin header)
PEG
LEK-IOA2
audio & serial board
Serial
Intel HD
Audio In/Out
1/8 Phone Jack
Audio Codec
ALC 888S
LEK-EA2*
PCIe x1 Slot
LEK-PB2*
2x PCI Slots
Voltage
Thermal
Sensor
2x PCIe !x
USB x2
Multi I/O Function
UART X4
Digital I/O x4
USB x2
PCIe x2
HD Audio
SATA x1
3.3V/5V/V1.5V/12V
PCIe I/O
Function
PCI-Express 16X *1
PCI-Express 1X *2
PCI-E CLOCK *3
3.3V /3.3V
SB
/5V/12V
IR remote
Receiver
(Optional)
Remark*
The expansion gold finger is flexible for
PCI and PCIe 1X signals (please refers to
"PCIe I/O Function" block);
For LEC-2270, the daughter board
LEK-EA2 or LEK-PB2 are selected by
different SKUs.
* LEK-EA2 is for LEC-2270E
* LEK-PB2 is for LEC-2270P2
ALC886