Serial Port Connector: JCOM1 (Optional)
The mainboard offers one 9-pin male DIN connector COM 1 (on the rear
panel), and one optional serial port JCOM1. Both are 16550A high speed
communication ports that send/receive 16 bytes FIFOs. You can attach a
serial mouse or other serial device directly to them.
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
3
SOUT
Receive Data Transmit
5
GND
Data
7
RTS
Request To Send Ring
9
RI
Indicate
Clear CMOS Jumper: JBAT1
There is a CMOS RAM on board that has a power supply from
external battery to keep the data of system configuration. With the
CMOS RAM, the system can automatically boot OS every time it is
turned on. If you want to clear the system configuration, use the
JBAT1 (Clear CMOS Jumper) to clear data. Follow the instructions
in the image to clear the data.
MSI Reminds You...
You can clear CMOS by shorting 2-3 pin while the system is off. Then return to 1-2 pin position.
Avoid clearing the CMOS while the system is on, which will damage the mainboard.
AGP (Accelerated Graphics Port) Slot
The AGP slot allows you to insert the AGP graphics
card. AGP is an interface specification designed for
the throughput demands of 3D graphics. It introduces a
66MHz, 32-bit channel for the graphics controller to directly access main memory. The slot
supports AGP card for 8x/4x at 1.5v (3.3v is not supported).
PCI (Peripheral Component Interconnect) Slots
The PCI slots allow you to insert the expansion cards
to meet your needs. When adding or removing
expansion cards, make sure that you unplug the
power supply first. Meanwhile, read the documentation for the expansion card to make any
necessary hardware or software settings for the expansion card, such as jumpers, switches or
BIOS configuration.
PCI Interrupt Request Routing
The IRQ, abbreviation of interrupt request line and pronounced I-R-Q, are hardware lines over
which devices can send interrupt signals to the microprocessor. The PCI IRQ pins are typically
connected to the PCI bus INT A# ~ INT D# pins as follows:
Order1
PCI Slot 1
INT B#
PCI Slot 2
INT C#
PCI Slot 3
INT D#
PCI Slot 4
INT B#
All manuals and user guides at all-guides.com
PIN
Order2
Order3
INT C#
INT D#
INT D#
INT A#
INT A#
INT B#
INT C#
INT D#
9
SIGNAL
DESCRIPTION
2
SIN
Serial in or receive data
4
DTR
Serial out or transmit data
6
DSR
Data Set Ready
8
CTS
Clear To Send
10
X
X
Order4
INT A#
INT B#
INT C#
INT A#