MSI K7N2GM-V Instruction Manual page 12

Front USB Connector: JUSB1/JUSB2
The mainboard provides two standard USB 2.0 pin headers
JUSB1&JUSB2. USB2.0 technology increases data transfer rate
up to a maximum throughput of 480Mbps, which is 40 times
faster than USB 1.1, and is ideal for connecting high-speed USB
interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modems and the
like.
MSI Reminds You...
Please note that the pins of VCC & GND must be connected correctly, or it may cause some
damage
SPDIF-Out Connector: JSP1
This connector is used to connect SPDIF (Sony & Philips Digital Interconnect
Format) interface for digital audio transmission.
Serial Port Connector: JCOM1 (Optional)
The mainboard offers one 9-pin male DIN connector COM A (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.
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; it 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 mainboard supports 4X/8X AGP card.
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
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