ECS A750GM-M, Manual, Page: 22 / 74

18
Installing the Motherboard
LPT: Onboard parallel port header
This is a header that can ba used to connect to the printer, scanner or other devices.
1 STROBE 14 ALF
2 PD0
3 PD1
4 PD2
5 PD3
15 ERROR
16 INIT
17 SLCTIN
18 Ground
Pin Signal Name Pin Signal Name
6 PD4 19 Ground
7 PD5 20 Ground
8 PD6
9 PD7
10 ACK
11 BUSK
12 PE
13 SLCT
21 Ground
22 Ground
23 Ground
24 Ground
25 Ground
26 Key
F_AUDIO: Front Panel Audio header
This header allows the user to install auxiliary front-oriented microphone and line-
out ports for easier access.
SATA1~4: Serial ATA connectors
These connectors are used to support the new Serial ATA devices for the highest data
transfer rates (3.0 Gb/s), simpler disk drive cabling and easier PC assembly. It elimi-
nates limitations of the current Parallel ATA interface. But maintains register com-
patibility and software compatibility with Parallel ATA.
1
Ground
2
TX+
3
TX-
4
Ground
5
RX-
6
RX+
7
Ground
-
-
Pin Signal Name Pin Signal Name
Pin Signal Name Function
1
PORT 1L
2
AUD_GND
3
PORT 1R
4
PRESENCE#
5
PORT 2R
6
SENSE1_RETURN
7
SENSE_SEND
8
KEY
Pin Signal Name
9
PORT 2L
10
SENSE2_RETURN
Pin Signal Name