Gigabyte GA-EP43T-USB3 User Manual page 23

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 4-pin (SYS_FAN2) and a 3-pin (SYS_FAN1)
system fan headers, and a power fan header (PWR_FAN). Most fan headers possess a foolproof inser-
tion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black con-
nector 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.
• Be sure to connect fan cables to the fan headers to prevent your CPU and system from over-
heating. 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.
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, be sure to locate
pin 1 of the connector and the floppy disk drive cable. The pin 1 of the cable is typically designated by
a stripe of different color. For purchasing the optional floppy disk drive cable, please contact the local
dealer.
1
CPU_FAN
1
SYS_FAN2
1
SYS_FAN1/PWR_FAN
34
2
- 23 -
CPU_FAN:
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
4 Speed Control
SYS_FAN2:
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
4 Reserve
SYS_FAN1/PWR_FAN
Pin No. Definition
1 GND
2 +12V
3 Sense
33
1
Hardware Installation