Asus P8B75-M - Manual (Page 37)

1-27 Chapter 1: Product introduction
Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
5. CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1/2)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
• Only the 4-pin CPU fan supports the ASUS FanXpert and Q-Fan 2 feature.
6. LPT connector (26-1 pin LPT)
The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT is
standardized as IEEE 1284, which is the parallel port interface on IBM PC-compatible
computers.
CHA_FAN1
CHA_FAN2
P8B75-M
P8B75-M fan connectors
GND
+12V
Rotation
Rotation
+12V GN
D
CPU_FAN
CPU
FA
N PW
M
CPU
FA
N IN
CPU
FA
N PW
R
GN
D
P8B75-M
P8B75-M LPT connector
LPT
PIN 1
SLCT PE BUSY ACK# PD
7
PD
6
PD
5
PD
4
PD
3
PD
2
PD
1
PD
0
S
T
B
#
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
SLIN
#
INIT
#
ERR#
AF
D