Fan1: Cpu Fan Power Connector; Fan2: Chassis Fan Power Connector; Fan3: System Fan Power Connector; Cn1: Ps/2 Keyboard And Ps/2 Mouse Connectors - Intel LGA775 User Manual

INSTALLATIONS

FAN1: CPU Fan Power Connector

FAN2: Chassis Fan Power Connector

FAN2 is a 3-pin header for the chassis fan. The fan must be a 12V fan.

FAN3: System Fan Power Connector

FAN3 is a 3-pin header for a 12V fan.

CN1: PS/2 Keyboard and PS/2 Mouse Connectors

Below are the pin-out assignments of the connectors.
Signal Name
Keyboard data
N.C.
GND
5V
Keyboard clock
N.C.
16
Signal Name
1
2
3 Rotation detection
4
Signal Name
1
2
3 Rotation detection
Signal Name
1
2
3 Rotation detection
PS/2 Mouse
PS/2 Keyboard
Keyboard Mouse
1
2
3
4
5
6
2801550 User's Manual
Ground
+12V
NC
Ground
+12V
Ground
+12V
Signal Name
1 Mouse data
2 N.C.
3 GND
4 5V
5 Mouse clock
6 N.C.