Gigabyte MVBAYAI - CPU Fan System Fan Headers

Hardware Installation
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27/28) CPU_FAN/SYS_FAN (CPU Fan/System Fan Headers)
The motherboard has one 4-pin CPU fan header (CPU_FAN), and one 4-pin (SYS_FAN) system fan
headers. 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.
1
4
1
2
DEBUG
PORT
G.QBOFM
4 1
DEBUG
PORT
G.QBOFM
PinNo. Denition
1 GND
2 +12V
3 Sense
4 Speed Control
CPU_FAN
CPU_FAN
SYS_FAN
SYS_FAN
• 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congurationjumperblocks.Donotplaceajumpercapontheheaders.
29) BATTERY (Battery Scoket)
Thebatteryprovidespowertokeepthevalues(suchasBIOScongurations,date,andtimeinformation)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a
low level, or the CMOS values may not be accurate or may be lost.
• Always turn off your computer and unplug
the power cord before replacing the battery.
• Replace the battery with an equivalent one.
Danger of explosion if the battery is replaced
with an incorrect model.
• Contact the place of purchase or local dealer
if you are not able to replace the battery
by yourself or uncertain about the battery
model.
• Used batteries must be handled in
accordance with local environmental
regulations.
PinNo. Denition
1 RTC Reset
2 GND