ECS C51GM-M, Руководство пользователя

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12
Installing the Motherboard
Reset Switch
Supporting the reset function requires connecting pin 5 and 7 to a momentary-contact
switch that is normally open. When the switch is closed, the board resets and runs POST.
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a momentary-
contact switch that is normally open. The switch should maintain contact for at least 50 ms
to signal the power supply to switch on or off. The time requirement is due to internal de-
bounce circuitry. After receiving a power on/off signal, at least two seconds elapses before
the power supply recognizes another on/off signal.
Power/Sleep/Message waiting LED
Connecting pins 2 and 4 to a single or dual-color, front panel mounted LED provides power
on/off, sleep, and message waiting indication.
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual indication that data
is being read from or written to the hard drive. For the LED to function properly, an IDE
drive should be connected to the onboard IDE interface. The LED will also show activity for
devices connected to the SCSI (hard drive activity LED) connector.
Front Panel Header
The front panel header (PANEL1) provides a standard set of switch and LED headers
commonly found on ATX or micro-ATX cases. Refer to the table below for information:
* MSG LED (Dual color or single color)
Pin Signal Function Pin Signal Function
1 HD_LED_P Hard disk LED(+) 2 FP PWR/SLP *MSG LED(+)
3 HD_LED_N Hard disk LED(-)
5 RST_SW_N Reset Switch(-)
7 RST_SW_P Reset )
9 RSVD Reserved
4 FP PWR/SLP *MSG LED(-)
6 PWR_SW_P Power )
8 PWR_SW_N Power Switch(-)
10 Key No pin