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4.2.4
Connector X1B - Row C .......................................................................................................... 22
4.2.5
Connector X1B - Row D .......................................................................................................... 25
4.2.6
Onboard Connectors ............................................................................................................. 28
4.3
Signal Description ................................................................................................................. 29
4.3.1
PCIexpress .......................................................................................................................... 29
4.3.2
USB .................................................................................................................................. 30
4.3.3
SATA ................................................................................................................................. 32
4.3.4
Audio ................................................................................................................................ 33
4.3.5
Serial IRQ ........................................................................................................................... 33
4.3.6
Graphics Interface ................................................................................................................ 34
4.3.7
Ethernet ............................................................................................................................ 36
4.3.8
LPC Bus .............................................................................................................................. 37
4.3.9
Power Control ..................................................................................................................... 40
4.3.10
Miscellaneous Circuits ........................................................................................................... 42
5
Special Features ............................................................................ 43
5.1
S5 Eco ................................................................................................................................ 43
5.2
Hyper Threading ................................................................................................................... 43
5.3
Speedstep Technology ............................................................................................................ 44
5.4
SD-card Interface (SDIO) ........................................................................................................ 45
5.5
Watchdog ............................................................................................................................ 47
5.6
GPIO - General Purpose Input and Output ................................................................................... 47
5.7
Flash Backup Feature ............................................................................................................. 49
5.8
Fast I2C ............................................................................................................................... 51
5.9
ACPI Suspend Modes and Resume Events .................................................................................... 52
6
Design Consideration ..................................................................... 53
6.1
Thermal Management ............................................................................................................. 53
6.2
Heatspreader Dimensions ....................................................................................................... 53
6.3
COMe-cSP2 onboard fan connector ............................................................................................ 54
6.3.1
Location and Pin-out of fan connector ...................................................................................... 54
6.3.2
BIOS Settings for fan control .................................................................................................. 55
6.3.3
Electrical Characteristics ........................................................................................................ 56
7
System Ressources ......................................................................... 57
