Gigabyte GA-VM900M Manual - Page 19

CPU_FAN / SYS_FAN Cooler Fan Power Connector, FDD FDD Connector - drive

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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/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). Remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to prevent CPU damage or system hanging caused by overheating. 1 CPU_FAN CPU_FAN : Pin No. 1 2 3 4 Definition GND +12V / Speed Control Sense Speed Control 1 SYS_FAN SYS_FAN : Pin No. 1 2 3 Definition GND +12V Sense 5) FDD (FDD 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. 34 33 2 1 - 19 - Hardware Installation

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Hardware Installation
- 19 -
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/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).
Remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to
prevent CPU damage or system hanging caused by overheating.
1
CPU_FAN
Pin No.
Definition
1
GND
2
+12V / Speed Control
3
Sense
4
Speed Control
5)
FDD (FDD 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.
1
2
33
34
CPU_FAN :
Pin No.
Definition
1
GND
2
+12V
3
Sense
SYS_FAN :
1
SYS_FAN