Intel Desktop Board D850MD/D850MV Technical Product Specification
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1.9.2 Parallel Port
The 25-pin D-Sub parallel port connector is located on the back panel. In the BIOS Setup
program, the parallel port can be set to the following modes:
• Output only (PC-AT
†
–compatible mode)
• Bidirectional (PS/2 compatible)
• EPP
• ECP
For information about Refer to
The location of the parallel port connector Figure 12, page 54
The signal names of the parallel port connector Table 21, page 55
Setting the parallel port’s mode Section 4.4.3, page 102
1.9.3 Diskette Drive Controller
The I/O controller supports one diskette drive that is compatible with the 82077 diskette drive
controller and supports both PC-AT and PS/2 modes.
For information about Refer to
The location of the diskette drive connector Section 2.8.2.4, page 63
The signal names of the diskette drive connector Table 40, page 68
The supported diskette drive capacities and sizes Table 70, page 107
1.9.4 Keyboard and Mouse Interface
PS/2 keyboard and mouse connectors are located on the back panel. The +5 V lines to these
connectors are protected with a PolySwitch
†
circuit that, like a self-healing fuse, reestablishes the
connection after an overcurrent condition is removed.
✏
NOTE
The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top
PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is
connected or disconnected.
The keyboard controller has the following functions:
• Contains the AMI keyboard and mouse controller code.
• Provides the keyboard and mouse control functions.
• Supports password protection for power-on/reset. A power-on/reset password can be specified
in the BIOS Setup program.
For information about Refer to
The location of the keyboard and mouse connectors Figure 12, page 54
The signal names of the keyboard and mouse connectors Table 19, page 55
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