Gigabyte GA-M55plus-S3G Manual - Page 20

CPU_FAN / SYS_FAN Cooler Fan Power Connector, FDD Floppy Connector - rev 1 2

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English 3/4) CPU_FAN / SYS_FAN (Cooler Fan Power Connector) The cooler fan power connector supplies a +12V power voltage via a 3-pin (SYS_FAN)/4-pin (CPU_FAN) power connector and possesses a foolproof connection design. Most coolers are designed with color-coded power connector wires. A red power connector wire indicates a positive connection and requires a +12V power voltage. The black connector wire is the ground wire (GND). Please remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to prevent the CPU/system from overheating and failure. 1 CPU_FAN 1 CPU_FAN: Pin No. 1 2 3 4 Definition GND +12V/Speed Control Sense Speed Control SYS_FAN SYS_FAN: Pin No. 1 2 3 Definition GND +12V Sense 5) FDD (Floppy Connector) The FDD connector is used to connect the FDD cable while the other end of the cable connects to the FDD drive. The types of FDD drives supported are: 360 KB, 720 KB, 1.2 MB, 1.44 MB and 2.88 MB. Before attaching the FDD cable, please take note of the foolproof groove in the FDD connector. 33 1 34 2 GA-M55plus-S3G (rev. 3.0) Motherboard - 20 -

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GA-M55plus-S3G (rev. 3.0) Motherboard
- 20 -
English
3/4) CPU_FAN / SYS_FAN (Cooler Fan Power Connector)
The cooler fan power connector supplies a +12V power voltage via a 3-pin (SYS_FAN)/4-pin
(CPU_FAN) power connector and possesses a foolproof connection design. Most coolers are
designed with color-coded power connector wires. A red power connector wire indicates a
positive connection and requires a +12V power voltage. The black connector wire is the ground
wire (GND).
Please remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to
prevent the CPU/system from overheating and failure.
SYS_FAN
1
1
CPU_FAN
2
34
1
33
5)
FDD (Floppy Connector)
The FDD connector is used to connect the FDD cable while the other end of the cable connects to
the FDD drive. The types of FDD drives supported are: 360 KB, 720 KB, 1.2 MB, 1.44 MB and
2.88 MB. Before attaching the FDD cable, please take note of the foolproof groove in the FDD
connector.
Pin No.
Definition
1
GND
2
+12V/Speed Control
3
Sense
4
Speed Control
Pin No.
Definition
1
GND
2
+12V
3
Sense
CPU_FAN:
SYS_FAN: