Gigabyte GA-F2A75-D3H - Fan Headers and CMOS Clear Function

Hardware Installation
- 24 -
3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design. When con-
necting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire).
The motherboard supports APU fan speed control, which requires the use of a APU 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 APU and system from overheat-
ing. Overheating may result in damage to the APU or the system may hang.
• These fan headers are not conguration jumper blocks. Do not place a jumper cap on the headers.
CPU_FAN
DEBUG
PORT
G.QBOFM
1
CPU_FAN:
Pin No. Denition
1 GND
2 +12V /Speed Control
3 Sense
4 Speed Control
SYS_FAN1:
Pin No. Denition
1 GND
2 +12V/Speed Control
3 Sense
4 Reserve
5) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the CMOS values (e.g. date information and BIOS congurations) and reset the
CMOS values to factory defaults. To clear the CMOS values, use a metal object like a screwdriver to touch
the two pins for a few seconds.
Open: Normal
Short: Clear CMOS Values
• Always turn off your computer and unplug the power cord from the power outlet before clearing
the CMOS values.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or
manually congure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS congurations).
SYS_FAN2/SYS_FAN3:
Pin No. Denition
1 GND
2 +12V
3 Sense
4 Speed Control
SYS_FAN1
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
SYS_FAN3
SYS_FAN2
DEBUG
PORT
G.QBOFM
1