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Hardware Installation
2.7.1. PS/2 Keyboard connector
Connector:
CN1 (KB)
Type:
6 pin female
This connector only supports a PS/2 keyboard plug. If you have a standard AT
size (large DIN) keyboard plug, you need to use a mini DIN adapter.
2.7.2. PS/2 Mouse connector
Connector:
CN2 (MS)
Type:
6 pin female.
This connector only supports a PS/2 mouse plug. If a PS/2 mouse is detected
then IRQ 12 will be directed to CN2.
2.7.3. Serial Port 1
Connector:
CN3 (COM1)
Type:
9 pin male
One serial port is available for a mouse and other serial devices.
2.7.4. Parallel Port Connector
Connector:
CN5 (LPT)
Type:
25 pin female.
This parallel port is used by printers which support the SPP, EPP and ECP
modes IRQ7 or IRQ5 can be selected. The ECP mode will use either DMA 3
or DMA 1 (which can be selected by the BIOS setup program).
2.7.5. Universal Serial Bus Port 1 & 2
Connector:
CN6 (USB 1)/CN7 (USB 2)
Type:
4 pin female
Two USB ports are available for connecting USB devices. The mainboard is also
equipped with an expansion connector that supports four additional USB exter-
nal connectors. (The USB cable is not included with the mainboard).
2.7.6. GAME/MIDI Port Connector
Connector:
CN18
Type:
15 pin female
The GAME/MIDI port connector is a dual purpose connector. It can either be
used to connect a joystick to the computer for game participation, or it can
be used to attach an external MIDI device. All these motherboards have 3D
audio interfaces onboard.
The 845G MAINBOARD Series
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