Gigabyte GA-X79-UD7 User Manual page 26

3) ATX4P1/ATX4P4 (PCIe Power Connectors)
The power connectors provide auxiliary power to the onboard PCI Express x16 slots. When two or more
graphics cards are installed, we recommend that you connect the SATA power cable(s) from the power
supply to the ATX4P1/ATX4P4 connector to ensure system stability. For 4-way CrossFireX
must connect at least one of the ATX4P1 and ATX4P4 connectors.
1
1
4/5) CPU_FAN/FAN1/FAN2/FAN3/FAN4/FAN5/FAN6 (Fan Headers)
All fan headers on this motherboard are 4-pin and support fan speed control function. 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 speed control function requires the use of a
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 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.
•
Hardware Installation
DIP
1 2 3
3 2 1
DIP
1
15
1
CPU_FAN
1
FAN1/FAN2/FAN5/FAN6
1
FAN3/FAN4
- 26 -
/SLI, you
™
Pin No. Definition
1 NC
2 NC
3 NC
4 GND
5 GND
6 GND
7 VCC
8 VCC
9 VCC
10 GND
11 GND
12 GND
13 +12V
14 +12V
15 +12V
CPU_FAN:
Pin No. Definition
1 GND
2 +12V/Speed Control
3 Sense
4 Speed Control
FAN1/FAN2/FAN3/FAN4/FAN5/FAN6:
Pin No. Definition
1 GND
2 +12V /Speed Control
3 Sense
4 Reserve