16
2.6 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place
jumper caps over these headers and connectors. Placing jumper caps
over the headers and connectors will cause permanent damage of the
motherboard!
SATA2 Connector
This Serial ATA2 (SATA2)
(SATAII_1: see p.8, No. 20)
connector supports SATA data
cables for internal storage
devices. The current SATA2
interface allows up to 3.0 Gb/s
data transfer rate.
SATAII_1
SATA Power Output Connector
(4-pin SATA_PWR1)
(see p.8 No. 19)
GND
+5V
+12V
1
GND
COM Port Headers
(10-pin COM1)
(see p.8 No. 11)
(10-pin COM2)
(see p.8 No. 10)
PIN
RS232
RS422
RS485
1
DCD
TX-
RTX-
2
RXD
RX+
N/A
3
TXD
TX+
RTX+
4
DTR
RX-
N/A
5
GND
GND
GND
6
DSR
N/A
N/A
7
RTS
N/A
N/A
8
CTS
N/A
N/A
9
+5V/+12V
N/A
N/A
This motherboard supports RS232/422/485 on COM1 port. Please refer to below
table for the pin definition. In addition, COM1 port (RS232/422/485) can be adjusted
in BIOS setup utility > Advanced Screen > Super IO Configuration. You may refer to
page 25 for details.
COM1 Port Pin Definition
1
2
PIN
Signal
Name
PIN Signal
Name PIN
Signal
Name PIN
Signal
Name
PIN Signal
Name
1
DDCD#
3
TTXD
5
GND
7
RRTS#
9
DUMMY
2
RRXD
4
DDTR#
6
DDSR#
8
CCTS#
10 DUMMY