Gigabyte GA-F2A85X-D3H User Manual page 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 connecting 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 configuration jumper blocks. Do not place a jumper cap on the headers.
5) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) 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.
• 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 configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS configurations).
Hardware Installation
CPU_FAN:
1
CPU_FAN
SYS_FAN1:
1
SYS_FAN1
SYS_FAN2/SYS_FAN3:
1
1
SYS_FAN2
SYS_FAN3
Open: Normal
Short: Clear CMOS Values
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Pin No. Definition
1 GND
2 +12V /Speed Control
3 Sense
4 Speed Control
Pin No. Definition
1 GND
2 +12V/Speed Control
3 Sense
4 Reserve
Pin No. Definition
1 GND
2 +12V
3 Sense
4 Speed Control