Gigabyte GA-F2A78M-D3H (rev. 3.0) User Manual download pdf (Page 24)

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Hardware Installation

• Be sure to connect fan cables to the fan headers to prevent your APU and system from

overheating. 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.

3/4) CPU_FAN/SYS_FAN1/SYS_FAN2 (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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.

CPU_FAN:

PinNo. Denition

1 GND

2 +12V

3 Sense

4 Speed Control

CPU_FAN

SYS_FAN2

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

5) BAT (Battery)

 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.

You may clear the CMOS values by removing the battery:

1. Turn off your computer and unplug the power cord.

2. Gently remove the battery from the battery holder and wait for

oneminute.(Oruseametalobjectlikeascrewdrivertotouch

the positive and negative terminals of the battery holder, making

themshortfor5seconds.)

3. Replace the battery.

4. Plug in the power cord and restart your computer.

• 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.

• Wheninstallingthebattery,notetheorientationofthepositiveside(+)andthenegativeside(-)

ofthebattery(thepositivesideshouldfaceup).

• Used batteries must be handled in accordance with local environmental regulations.

SYS_FAN1/2:

PinNo. Denition

1 GND

2 Speed Control

3 Sense

4 Reserve

SYS_FAN1

DEBUG

PORT

G.QBOFM

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 95 96

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Gigabyte GA-F2A78M-D3H (rev. 3.0) User Manual Page 24

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