User`s manual

Hardware Installation - 24 -

3/4) CPU_FAN/SYS_FAN (Fan Headers)

The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 4-pin (SYS_FAN). 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 con-

trol, 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.

• 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.

CPU_FAN:

Pin No. Denition

1 GND

2 +12V / Speed Control

3 Sense

4 Speed Control

SYS_FAN:

Pin No. Denition

1 GND

2 +12V / Speed Control

3 Sense

4 Reserve

5) FDD (Floppy Disk Drive Connector)

This connector is used to connect a oppy disk drive. The types of oppy disk drives supported are:

360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a oppy disk drive, be sure to locate

pin 1 of the connector and the oppy disk drive cable. The pin 1 of the cable is typically designated by a

stripe of different color. For purchasing the optional oppy disk drive cable, please contact the local dealer.

SYS_FAN

CPU_FAN

G.QBOFM