SOYO SY-K7ADA user manual Hardware Monitor, 1 PS/2 Keyboard and Mouse Interface

Motherboard Description SY-K7ADA

Legacy-Free and Legacy Reduction specification of PC2001.

1-7.1 PS/2 Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel of the motherboard. The +5 V lines to keyboard and mouse connectors are protected with a fuse that prevents motherboard components from being damaged when an over-current condition occurs.

Note

The mouse and keyboard can be plugged into either PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected or disconnected.

The keyboard controller contains code, which provides the traditional keyboard and mouse control functions, and also supports Power On/Reset password protection. Power On/Reset password can be specified in the BIOS Setup program.

The keyboard controller also supports the hot-key sequence <Ctrl><Alt><Del>, software reset. This key sequence resets the computer’s software by jumping to the beginning of the BIOS code and running the Power On Self Test (POST).

1-8 HARDWARE MONITOR

The hardware monitor subsystem provides instrumentation capabilities. The features of the hardware monitor subsystem include:

n2 thermistor input for remote temperature sensing (CPU/System)

nMonitor 4 positive voltages (Vcore/+3.3V/+5V/+12V)

nMonitor 2 fan speeds

n2 PWM outputs for fan speed control

nPower-on beep warning when CPU core voltage is out of range

nVID4-VID0 monitoring inputs

nWindows 95/98 utility included

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