Gigabyte GA-M68MT-S2 (rev. 1.3) User Manual download pdf (Page 14)

Hardware Installation - 14 -

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. Denition

1 GND

2 +12V / Speed Control

3 Sense

4 Speed Control

CPU_FAN

DEBUG

PORT

G.QBOFM

• 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conguration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. Denition

1 GND

2 +12V

3 Sense

PinNo. Denition

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. Denition

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

PORT

G.QBOFM

26 25

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 39 40

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