Mainboard PM945GC(V2.0)

Hard Drive LED Header: HDLED

If your case front panel has a hard drive LED cable, attach it to this header. The LED will flicker when there is hard disk drive activity.

Reset Switch Header: RESET

This header can be attached to a momentary SPST switch (reset button) cable on your case front panel. The switch is normally left open. When the switch closed, it will cause the mainboard to reset and run the POST (Power-On Self Test).

Power-on Switch Header: PWRBTN

This header can be attached to a power switch cable on your case front panel. You can turn your system on or off by pressing the button attached to this power switch cable.

2-pinPower LED Header: PWR LED

These mainboards provide a 2-pin power LED header. If there is a 2-pin power LED cord on your case front panel, you can attach it to the 2-pin power LED header. Then the power LED will illuminate while the system is powered on.

3-pinPower LED Header: PWRLED

These mainboards also provide a 3-pin power LED header. If there is a 3-pin power LED cord on your case front panel, you can attach it to this 3-pin header instead of attach to the 2-pin one on the SW/LED header.

 

Pin

Assignment

Pin

Assignment

PWRLED

1

PWR_LED (+)

2

Key

 

 

 

 

3

PWR_LED (-)

 

 

 

 

 

 

 

 

 

 

Speaker Header: SPEAK

A speaker cable on your case front panel can be attached to this header. When you reboot the computer, this speaker will issue a short audible (beep). If there are problems during the Power On Self-Test, the system will issue an irregular pattern of audible beeps through this speaker.

 

Pin

Assignment

Pin

Assignment

SPEAK

1

SPK

2

N/C

3

Ground

4

VCC5

 

Connectors

Floppy Disk Drive Connector: FLOPPY

These mainboards provide a standard floppy disk drive connector (FDD) that supports 360KB/ 720KB/ 1.2MB/ 1.44MB/ 2.88 MB floppy disk drives using a FDD ribbon cable.

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