Gigabyte GA-EP45T-UD3R Manual - Page 24

/5 CPU_FAN/SYS_FAN1/SYS_FAN2/PWR_FAN Fan Headers, PWR_LED System Power LED Header

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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). Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (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. CPU_FAN: Pin No. Definition 1 CPU_FAN 1 GND 2 Speed Control 3 Sense 4 Speed Control SYS_FAN2: Pin No. Definition 1 GND 1 SYS_FAN2 2 Speed Control 3 Sense 4 +5V SYS_FAN1/PWR_FAN: Pin No. Definition 1 SYS_FAN1/PWR_FAN 1 GND 2 +12V 3 Sense • 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. 6) PWR_LED (System Power LED Header) This header can be used to connect a system power LED on the chassis to indicate system power status. The LED is on when the system is operating. The LED keeps blinking when the system is in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5). Pin No. Definition 1 MPD+ 1 2 MPD- 3 MPD- System Status LED S0 On S1 Blinking S3/S4/S5 Off GA-EP45T-UD3R/UD3 Motherboard - 24 -

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GA-EP45T-UD3R/UD3 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). Most fan headers
possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the
correct orientation (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.
Pin No.
Definition
1
GND
2
+12V
3
Sense
SYS_FAN1/PWR_FAN:
Pin No.
Definition
1
GND
2
Speed Control
3
Sense
4
Speed Control
CPU_FAN:
Pin No.
Definition
1
GND
2
Speed Control
3
Sense
4
+5V
SYS_FAN2:
1
CPU_FAN
1
SYS_FAN2
SYS_FAN1/PWR_FAN
1
6)
PWR_LED (System Power LED Header)
This header can be used to connect a system power LED on the chassis to indicate system power
status. The LED is on when the system is operating. The LED keeps blinking when the system is
in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5).
Pin No.
Definition
1
MPD+
2
MPD-
3
MPD-
System Status
LED
S0
On
S1
Blinking
S3/S4/S5
Off
1