GIGABYTE GA-M68MT-S2P - Manual (Page 15)

- 15 - Hardware Installation
3/4) CPU_FAN/SYS_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 3-pin (SYS_FAN) system fan headers.
Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect
it in the correct orientation (the black connector wire is the ground wire). The motherboard supports CPU
fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum heat
dissipation, it is recommended that a system fan be installed inside the chassis.
CPU_FAN:
Pin No. Definition
1
GND
2 +12V / Speed Control
3 Sense
4 Speed Control
CPU_FAN
DEBUG
PORT
G.QBOFM
1
• Be sure to connect fan cables to the fan headers to prevent your CPU and system from over-
heating. Overheating may result in damage to the CPU or the system may hang.
• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the
headers.
5) LPT (Parallel Port Header)
The LPT header can provide one parallel port via an optional LPT port cable. For purchasing the optional
LPT port cable, please contact the local dealer.
SYS_FAN
SYS_FAN:
Pin No. Definition
1
GND
2 +12V
3 Sense
1
Pin No. Definition
14
GND
15 PD6
16 GND
17 PD7
18 GND
19 ACK-
20 GND
21 BUSY
22 GND
23 PE
24 No Pin
25 SLCT
26 GND
Pin No. Definition
1
STB-
2 AFD-
3 PD0
4 ERR-
5 PD1
6 INIT-
7 PD2
8 SLIN-
9 PD3
10 GND
11 PD4
12 GND
13 PD5
DEBUG PO
RT
G.QBOFM
26 25
1 2