Gigabyte GA-Z87-DS3H - Page 23

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Hardware Installation
• 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.
3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 (Fan Headers)
Themotherboardhasa4-pinCPUfanheader(CPU_FAN),two4-pin(SYS_FAN1/2)anda3-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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
SYS_FAN1/2:
PinNo. Denition
1 GND
2 +12V / Speed Control
3 Sense
4 VCC
CPU_FAN
SYS_FAN1/2
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
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_FAN3
PinNo. Denition
1 GND
2 +12V
3 N/A
1
SYS_FAN3