26
Hardware
Information
System Panel Pin Header (CN27)
(2x10 pin header, 2.54mm pitch)
Connects to chassis-mounted buttons, speakers, and LEDs.
1
10
20
11
Pin #
Signal
Function
Pin Group
1
P5V
+5V Power
Power LED
2
NC
3
HC_PLED-L
Power LED signal
4
NC
5
GND
Ground
6
GND
Ground
ATX Power
7
NC
8
ATX_PSON-L
ATX Power-On signal
9
P5V_SB_ATX
+5V Standby
10
PMEJ
Power Control signal
11
HC_SPKR
Speaker signal
Chassis
Speaker
12
NC
13
NC
14
P5V
+5V Power
15
HC_RSTBN-L
Reset signal
Reset Button
16
GND
Ground
17
HDLED_PWR
HDD LED signal
HDD LED
18
P5V
+5V Power
19
HC_PBTNJ
Power-On signal
Power Button
20
GND
Ground
Fan Connectors (FAN1/2)
(1x4 Wafer connector, 2.54mm pitch)
Pin #
Signal
1
4
1
GND
2
Fan power (+12V)
3
Fan Tachometer
4
Fan Speed Control
Summary of Contents for NuPRO-A331
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Page 22: ...8 Introduction 1 6 Mechanical Drawing Dimensions in mm Figure 1 2 NuPRO A331 Board Dimensions...
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