Front Panel Header - Acer Aspire X1920 Service Manual

ATX_POWER: ATX 24-pin Power Connector
Pin Signal Name
1 +3.3V
2 +3.3V
3 Ground
4 +5V
5 Ground
6 +5V
7 Ground
8 PWRGD
9 +5VSB
10 +12V
11 +12V
12 +3.3V
SYS_FAN: System Cooling FAN Power Connector
Pin Signal Name
1 GND
2 +12V
3 Sense
ATX12V: ATX 12V Power Connector
Pin Signal Name
1 Ground
2 Ground
3 +12V
4 +12V

Front Panel Header

The front panel header (F_PANEL) provides a standard set of switch and LEDheaders commonly found on ATX or
micro-ATX cases. Refer to the table below for information:
Pin Signal Name
1 VCC
3 HDD_LEDN
5 GND
7 HWRST_L
9 F_PANEL_DET
11 NC
13 NC
76
Pin
13
14
15
16
17
18
19
20
21
22
23
24
Function
System Ground
Power +12V
Sensor
Function Pin
Reset Switch (+) 2
Hard disk LED (-) 4
Reset Switch (-) 6
Reset Switch (+) 8
Reserved 10
Reserved 12
Reserved 14
Signal Name
+3.3V
-12V
Ground
PS_ON
Ground
Ground
Ground
-5V
+5V
+5V
+5V
Ground
Signal Name Function
GLED0 *MSG LED (+)
GLED1 *MSG LED (-)
PWRSW Power Switch (+)
GND Power Switch (-)
KEY No pin
VCC Reset Switch (+)
F_LAN_LED Reset Switch (+)
Aspire AX1920 Service Guide