GA-EP35C-DS3R Motherboard - 24 -
• 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.
3/4/5) CPU_FAN/SYS_FAN1/SYS_FAN2/PWR_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN), a 3-pin (SYS_FAN1) and a 4-pin
(SYS_FAN2) system fan headers, and a 3-pin power fan header (PWR_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 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.
1
CPU_FAN
SYS_FAN2
1
SYS_FAN1/PWR_FAN
1
6) 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
Pin No. Definition
1 GND
2 +12V
3 Sense
SYS_FAN1 / PWR_FAN :
Pin No. Definition
1 GND
2 Speed Control
3 Sense
4 +5V
SYS_FAN2:
Pin No. Definition
1 GND
2 +12V
3 Sense
4 Speed Control
CPU_FAN
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