Gigabyte GA-GC330UD User Manual page 17

3/4) CPU_FAN/SYS_FAN (Fan Headers)
The motherboard has a 3-pin CPU fan header (CPU_FAN) and a 3-pin system fan header
(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 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.
5) IDE (IDE Connector)
The IDE connector supports up to two IDE devices such as hard drives and optical drives. Before
attaching the IDE cable, locate the foolproof groove on the connector. If you wish to connect two IDE
devices, remember to set the jumpers and the cabling according to the role of the IDE devices (for
example, master or slave). (For information about configuring master/slave settings for the IDE
devices, read the instructions from the device manufacturers.)
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CPU_FAN
1
SYS_FAN
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CPU_FAN:
Pin No. Definition
1 GND
2 Speed Control
3 Sense
SYS_FAN:
Pin No. Definition
1 GND
2 +12V
3 Sense
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Hardware Installation