Nr120 Motherboard Layout - Lite-on Tech NR120 User Manual

NR120 Motherboard

NR120 Motherboard Layout

J
I
H
A CPU Socket
B CPU Fan Socket
C Memory Sockets
D Power Supply Connector
E Floppy Connector
F IDE Connectors
Pin
1 HD_PWR
2 HDR_BLNK_GRN
3 HDA*
4 HDR_BLNK_YEL
5 GND
6 FPBUT_IN
7 FP_RESET*
8 GND
9 +5V
10 FPSLP*
11 IRRX
12 GND
13 GND
14 KEY
15 IRTX
16 +5V
17 NC
18 NC
19 NC
20 GND
K
D
G
F
Front Panel Connector Pin Definition
Signal Name I/O
O Hard Disk LED pull-up (330 ohms) to +5V
O Front panel Green LED signal
O Hard Disk Active LED signal
O Front panel Yellow LED signal
- Ground
I Front panel On/Off button signal
I Front panel Reset button signal
- Ground
O +5V
I Front panel sleep button signal
I IRDA serial input receiver
- Ground
- Ground
X KEY
O IRDA serial output transmit
O +5V(PWRLED Power)
- not connected
- not connected
- not connected
- Ground
L
D
E
G Jumper Connector
H Front Panel Connector
I Front Side USB
J Expansion Slots
K Audio Connector
L Back Panel Connectors
Description
4
A
B
C