GA-M52S-S3P Motherboard - 22 -
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• Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. 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.
3/4) CPU_FAN/SYS_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 3-pin system fan header
(SYS_FAN). Each fan header supplies a +12V power voltage and possesses a foolproof insertion
design. When connecting a fan cable, be sure to connect it in the correct orientation. Most fans are
designed with color-coded power connector wires. A red power connector wire indicates a
positive connection and requires a +12V voltage. The black connector wire is the ground wire. The
motherboard supports CPU/system fan speed control, which requires the use of a CPU/system
fan with fan speed control design. For optimum heat dissipation, it is recommended that a system
fan be installed inside the chassis.
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
4 Speed Control
1
CPU_FAN
CPU_FAN :
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
SYS_FAN :
5) FDD (Floppy Disk Drive Connector)
This connector is used to connect a floppy disk drive. The types of floppy disk drives supported
are: 360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a floppy disk drive, locate
the foolproof groove on the connector.
1
2
33
34
1
SYS_FAN
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