IBM Motherboard DJ800 - Manual (Page 19)

Chapter 2
PS/2 Mouse Connector (6-pin Female)
The system will direct IRQ12 to the PS/2 mouse if one is detected.
If no mouse is detected, IRQ12 will be free for expansion cards to use.
PS/2 Keyboard Connector (6-pin Female)
This connection is for standard keyboards using a PS/2 (mini DIN)
plug. This connector will not accept standard AT size (large DIN) key-
board plugs. You may need a DIN to mini DIN adapter for standard AT
keyboards.
Universal Serial Bus Ports (4-pin Female)
Four onboard external USB 2.0 ports are available for connecting
USB devices. Refer to USB 2.0 Ports & Header for more information.
Rear Panel I/O Ports
This is an illustration of the Mainboard rear I/O port array
Line In
Line Out
Mic In
Keyboard COM1 Rear Out S/PDIF USB2.0 Center Out
Mouse Parallel LAN IEEE1394
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