Lenovo EAM-400H User Manual page 33

CPU Fan Connector (CPU FAN)
Pin #
1
2
3
4
System Panel Pin Header (F_PANEL)
Pin # Signal
1 WDSPK
3 NC
5 NC
7 P5V
9 NC
11 GND
13 KEYLOCK
15 PLED
17 NC
19 P5V
2 GND
4 RESETBT
6 NC
8 GND
10 POWERBT
12 NC
14 NC
16 HDDLED
18 P3V3
20 NC
Hardware Information
Signal
GND
Fan power (+12V)
Fan Tachometer
Fan Speed Control
Function
Speaker signal
Power
Ground
Keyboard lock
Power LED signal
Power LED pull-up
Ground
RESET signal
Ground
Power-on signal
Hard Disk LED signal
Hard Disk LED pull-up
4
Pin Group
Chassis Speaker
Key Lock
Power LED
RESET Button
Power On Button
Hard Disk LED
EAM-400H
1
1 2
19 20
21