Chapter 5: Advanced Motherboard Setup
ATX PS/2 Keyboard and PS/2 Mouse Ports
The ATX PS/2 keyboard and the PS/2 mouse ports are located on the IO backplane. The mouse is the top (green) port. See the table on the right for pin defi nitions.
Serial Ports
The COM1 serial port is located under the parallel port. Refer to the moth- erboard layout for the location of the COM2 header. Refer to the table on the right for pin defi nitions.
Fan Headers
The
Note: when using active heatsinks (those with fans), connect the CPU heatsink fan to the nFAN1 header.
LAN1/2 (Ethernet Ports)
Two Gigabit Ethernet ports (desig- nated LAN1 and LAN2) are located beside the COM2 port. These Ether- net ports accept RJ45 type cables.
PS/2 Keyboard and
Mouse Port Pin
Definitions
Pin# Defi nition
1Data
2NC
3Ground
4VCC
5Clock
6 NC
Serial Port Pin Definitions
(COM1/COM2)
Pin # | Defi nition | Pin # | Defi nition |
1 | DCD | 6 | DSR |
2 | RXD |
| RTS |
7 | |||
3 | TXD |
| CTS |
8 | |||
4 | DTR |
| RI |
9 | |||
5 | Ground |
| NC |
10 | |||
|
|
|
|
Note: NC indicates no connection.
Fan Header
Pin Definitions
Pin# Defi nition
1Ground (Black)
2 +12V (Red)
3Tachometer
4 PWM Control