Filter
Top Products
Chapter 5: Advanced Motherboard Setup
5-15
Fan Headers
The H8SMi-2 has fi ve fan headers,
which are designated FAN1 through
FAN8. Fans are Pulse Width Modu-
lated (PWM) and their speed is con-
trolled via Thermal Management with
a BIOS setting. See the table on the
right for pin defi nitions.
Note: when using active heatsinks
(those with fans), connect the CPU
heatsink fan to the nFAN1 header.
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.
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.
Note: NC indicates no connection.
Serial Port Pin Defi nitions
(COM1/COM2)
Pin # Defi nition Pin # Defi nition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 NC
Fan Header
Pin Defi nitions
(FAN1-5)
Pin# Defi nition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
4 PWM Control
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.
PS/2 Keyboard and
Mouse Port Pin
Defi nitions
Pin# Defi nition
1 Data
2NC
3 Ground
4 VCC
5 Clock
6NC