ECS 965PLT-A, Manual, Page: 18 / 50

12
Installing the Motherboard
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.
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.
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:
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 Switch (+)
9 RSVD Reserved
4 FP PWR/SLP *MSG LED (-)
6 PWR_SW_P Power Switch (+)
8 PWR_SW_N Power Switch (-)
10 Key No pin
* MSG LED (dual color or single color)
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.
SPK1: Internal speaker
Pin Signal Name
1
VCC
2
Key
3
NC
4
Signal
ATX4P1: Auxiliary Power Connector for Graphics Interface
Pin Signal Name
4
+12V
3
GND
2
GND
1
NC
Make sure to connect a 4-pin ATX power cable
to ATX4P1; otherwise, the system will be un-
stable.