Atx 20-Pin Power Connector; Front Panel Header; Hard Drive Activity Led - ECS PMI8M Manual

ATX_POWER: ATX 20-pin Power Connector
Pin Signal Name
1
VCC3
2
VCC3
3
GND
4
VCC
5
GND
6
VCC
7
GND
8
PWROK
9
5VSB
10
+12V

Front Panel Header

The front panel header (PANEL) provides a standard set of switch and LED headers
commonly found on ATX or micro-ATX cases. Refer to the table below for informa-
Pin Signal Name Function
1 HD_LED_P Hard Disk LED+
3 HD_LED_N Hard disk LED-
5 RST_SW_N Reset Switch
7 RST_SW_P Reset Switch
9 RSVD_DNU Reserved
* 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.
Installing the Motherboard
Pin Signal Name
11
VCC3
12
-12V
13
GND
14
PS-ON#
15
GND
16
GND
17
GND
18
-5V
19
VCC
20
VCC
Pin Signal Name Function
2 FP PWR/SLP *MSG LED+
4 FP PWR/SLP *MSG LED-
6 PWR_SW_P Power Switch
8 PWR_SW_N Power Switch
10 Key No pin
11