MSI Kt4avl Manual

2-13
Hardware Setup
Audio Port Connectors
Line Out is a connector for Speakers or Headphones.  Line In is used
for external CD player, Tape player, or other audio devices.  Mic is a connec-
tor for microphones.
MSI Reminds You...
For advanced audio application, RealTek ALC650 audio chip
is provided as an option to offer support for 6-channel audio
operation and can turn rear audio connectors from 2-channel
to 4-/6-channel audio. For more information on 6-channel au-
dio operation, please refer to...

2-14
 MS-6712 ATX Mainboard
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors as serial port COM
A & COM B.  The ports are 16550A high speed communication ports that
send/receive 16 bytes FIFOs.  You can attach a serial mouse or other serial
devices directly to the connectors.
PIN SIGNAL DESCRIPTION
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready)
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To...

2-15
Hardware Setup
The mainboard provides connectors to connect to FDD, IDE HDD, case,
modem, LAN, USB Ports, IR module and CPU/System FAN.
Floppy Disk Drive Connector: FDD1
The mainboard provides a standard floppy disk drive connector that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types.
Connectors
FDD1 

2-16
 MS-6712 ATX Mainboard
Hard Disk Connectors: IDE1 & IDE2
The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 33/66/
100/133 controller that provides PIO mode 0~4, Bus Master, and Ultra DMA
33/66/100/133 function. You can connect up to four hard disk drives, CD-
ROM, 120MB Floppy (reserved for future BIOS) and other devices.
IDE1 (Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can
connect a Master and a Slave drive. You must configure second hard
drive to...

2-17
Hardware Setup
Fan Power Connectors: CFAN1/SFAN1
The CFAN1 (processor fan) and SFAN1 (system fan) support system
cooling fan with +12V. It supports three-pin head connector. When connect-
ing the wire to the connectors, always take note that the red wire is the posi-
tive and should be connected to the +12V, the black wire is Ground and should
be connected to GND. If the mainboard has a System Hardware Monitor chipset
on-board, you must use a specially designed fan with speed sensor to take...

2-18
 MS-6712 ATX Mainboard
Front Panel Connectors: JFP1 & JFP2
The mainboard provides two front panel connectors for electrical con-
nection to the front panel switches and LEDs. JFP1 is compliant with Intel®
Front Panel I/O Connectivity Design Guide.
PIN SIGNAL DESCRIPTION
1 HD_LED_P Hard disk LED pull-up
2 FP PWR/SLP MSG LED pull-up
3 HD_LED_N Hard disk active LED
4 FP PWR/SLP MSG LED pull-up
5 RST_SW_N Reset Switch low reference pull-down to GND
6 PWR_SW_P Power Switch high reference pull-up
7...

2-19
Hardware Setup
Front Panel Audio Connector: JAUD1
The JAUD1 front panel audio connector allows you to connect to the
front panel audio and is compliant with Intel® Front Panel I/O Connectivity
Design Guide.
PIN SIGNALDESCRIPTION
1 AUD_MICFront panel microphone input signal
2 AUD_GND Ground used by analog audio circuits
3 AUD_MIC_BIASMicrophone power
4 AUD_VCCFiltered +5V used by analog audio circuits
5 AUD_FPOUT_R Right channel audio signal to front panel
6 AUD_RET_R Right channel audio signal...

2-20
 MS-6712 ATX Mainboard
Front USB Connector: JUSB1
The mainboard provides one USB 2.0 pinheader. The JUSB1 is compli-
ant with Intel® I/O Connectivity Design Guide.
Pin Description Pin Description
1 VCC 2 VCC
3 USB0- 4 USB1-
5 USB0+ 6 USB1+
7 GND 8 GND
9 Key 10 USBOC
JUSB1  Pin Definition
MSI Reminds You...
The USB 2.0 technology is downward compatible with USB 1.1
spec.  To use the USB 2.0 ports, you have to install the USB 2.0
driver, which is supplied by Microsoft for Windows
® 2000 and
XP.  If...

2-21
Hardware Setup
D-Bracket™ 2 Connector: JLED1
The mainboard comes with a JLED1 connector for you to connect to D-
Bracket™ 2. D-Bracket™ 2 is a USB Bracket that supports both USB1.1 & 2.
0 spec. It integrates four LEDs and allows users to identify system problem
through 16 various combinations of LED signals. For definitions of 16 signal
combinations, please refer to D-Bracket™  2 (Optional) in Chapter 1.
Pin Signal
1 DBG1 (high for green color)
2 DBR1 (high for red color)
3 DBG2 (high for green...

2-22
 MS-6712 ATX Mainboard
S-Bracket Connector: JSP3
The connector allows you to connect a S-Bracket for Sony & Philips
Digital Interface (SPDIF).  The S-Bracket offers 2 SPDIF jacks for digital
audio transmission (one for optical fiber connection and the other for coaxial),
and 2 analog Line-Out jacks for 4-channel audio output.
To attach the fiber-optic cable to optical SPDIF jack, you need to re-
move the plug from the jack first.  The two SPDIF jacks support SPDIF out-
put only.  For more...