18
Installing the Motherboard
SATA1~2: Serial ATA 6.0Gb/s connector
This connector is used to support the Serial ATA devices for the highest data transfer
rates (6.0 Gb/s), simpler disk drive cabling and easier PC assembly.
1 Ground 2 TX+
3 TX- 4 Ground
5 RX- 6 RX+
7 Ground 8 No pin
Pin Signal Name
Pin Signal Name
CASE: Opened Chassis detective header
This detects if the chassis cover has been removed. This function needs a chassis
equipped with intrusion detection switch and needs to be enabled in BIOS.
Pin Signal Name
1 GND
2 Case open
COM3~6 : Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
Pin Signal Name Pin Signal Name
1 C3_DCD 21 C5_DCD
2 C3_DSR 22 C5_DSR
3 C3_RXD 23 C5_RXD
4 C3_RTS 24 C5_RTS
5 C3_TXD 25 C5_TXD
6 C3_CTS 26 C5_CTS
7 C3_DTR 27 C5_DTR
8 C3_RI 28 C5_RI
9 Ground 29 Ground
10 Ground 30 Ground
11 C4_DCD 31 C6_DCD
12 C4_DSR 32 C6_DSR
13 C4_RXD 33 C6_RXD
14 C4_RTS 34 C6_RTS
15 C4_TXD 35 C6_TXD
16 C4_CTS 36 C6_CTS
17 C4_DTR 37 C6_DTR
18 C4_RI 38 C6_RI
19 Ground 39 Ground
20 Ground 40 Ground
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